Common membership units outstanding Units of Partnership Interest, Amount Number of restricted shares and restricted stock units, Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Trade accounts Trade Accounts Receivable [Member] Receivable Type Receivable Type [Axis] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Payment to founding members under TRA Payment To Founding Members Under Tax Sharing Arrangement Payment to founding members under tax sharing arrangement. Advertising operating costs Advertising Operating Costs [Member] Advertising Operating Costs [Member] Related Party [Axis] Related Party [Axis] Equity-Based Arrangements, Individual Contracts, Type of Deferred Compensation [Domain] Equity-Based Arrangements, Individual Contracts, Type of Deferred Compensation [Domain] Debt Issuance Costs, Noncurrent, Net Debt Issuance Costs, Noncurrent, Net Other investments Cost Method Investments Regal Regal Entertainment Group [Member] Regal entertainment group. Current year change to enacted federal and state rate Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount Debt issuance costs Debt Issuance Costs, Gross On-screen advertising time to satisfy agreement obligations, in seconds Length Of On Screen Advertising Time To Satisfy Agreement Obligations The length of on-screen advertising time to satisfy agreement obligations. Performance obligations satisfied Contract with Customer, Liability, Change in Timeframe, Performance Obligation Satisfied, Revenue Recognized Range Range [Domain] Statistical Measurement [Domain] LIABILITIES AND EQUITY/(DEFICIT) Liabilities and Equity [Abstract] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Net cash provided by investing activities Net Cash Provided by (Used in) Investing Activities, Continuing Operations Security Exchange Name Security Exchange Name Common membership units surrendered, compensation for lost operating income Common Membership Units Surrendered Compensation For Lost Operating Income For Divested Theaters Term Common membership units surrendered, compensation for lost operating income for divested theaters, term. Selling and Marketing Costs Selling and Marketing Expense [Member] Guarantee obligations amount paid Guarantee Obligations Amount Paid Guarantee obligations amount paid. Total current liabilities Liabilities, Current Cash distributions declared to members Distribution Made to Limited Liability Company (LLC) Member, Cash Distributions Declared Weighted average grant-date fair value, Non-vested, beginning balance (in dollars per share) Weighted average grant-date fair value, Non-vested, ending balance (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Variable Rate Variable Rate [Domain] ASSETS Assets [Abstract] Investment, Name Investment, Name [Axis] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Accounting Policies [Abstract] Accounting Policies [Abstract] Accrued bonus Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Bonuses Restricted Cash and Cash Equivalents Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Share-based compensation issued, value Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture Amounts due to founding members, net Due to Related Parties, Current 2021 Long-Term Debt, Maturity, Year Three Accrued Expenses Accounts Payable and Accrued Liabilities Disclosure [Text Block] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Long-term marketable securities Aggregate Fair Value - Long term marketable securities Available-for-sale Securities, Noncurrent Common Membership Units Returned Common Membership Units Returned Common membership units returned. Accrued purchases of property and equipment Noncash or Part Noncash Acquisition, Fixed Assets Acquired Term of increase in payment percentage per theater patron Period Of Increase In Payment On Theater Patron Period of increase in payment on per theater patron. Cumulative Principal Amount Paid on Term Loan Cumulative Principal Amount Paid on Term Loan Cumulative Principal Amount Paid on Term Loan Computer hardware and software Computer Hardware And Software [Member] Computer hardware and software. Options, Outstanding, beginning balance (in shares) Options, Outstanding, ending balance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Unrecognized compensation expense related to non-vested options Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Schedule of Amounts Due to Founding Members Schedule of Incentive Distributions Made to Managing Members or General Partners by Distribution [Table Text Block] New Accounting Pronouncements or Change in Accounting Principle [Line Items] New Accounting Pronouncements or Change in Accounting Principle [Line Items] Current State Current State and Local Tax Expense (Benefit) Maximum potential payment Guarantor Obligations, Maximum Exposure, Undiscounted Deferred tax assets, tax basis notes receivable Deferred Tax Assets Notes Receivable Deferred tax assets notes receivable. Preferred stock, $0.01 par value; 10,000,000 shares authorized, none issued and outstanding, respectively Preferred Stock, Value, Issued Founding Members Founding Members [Member] Founding Members Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items] Fair Value, Separate Account Investment [Line Items] Loss on write-off of property, plant and equipment Tangible Asset Impairment Charges Advertising Inventory Advertising Inventory [Member] Advertising inventory. OTHER COMPREHENSIVE INCOME, NET OF TAX: Other Comprehensive Income (Loss), Net of Tax [Abstract] Common stock, par value (in usd per share) Common Stock, Par or Stated Value Per Share Other liabilities Other Liabilities, Noncurrent Fair value of awards vested Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value Document Information [Table] Document Information [Table] Valuation Allowance On Deferred Tax Assets [Member] SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member] Advertising operating costs Marketing and Advertising Expense NCM LLC income taxes Income Tax Reconciliation Income Tax Benefit Of Affiliate Income Tax Reconciliation Income tax Benefit of Affiliate One Founding Members [Member] One Founding Members [Member] One founding members. Fair Value, Measurement Frequency Measurement Frequency [Domain] Weighted Average Number of Shares Outstanding, Basic [Abstract] Weighted Average Number of Shares Outstanding, Basic [Abstract] CONSOLIDATED NET (LOSS) INCOME Consolidated net (loss) income Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest RelatedPartyTRAPayment,AMC RelatedPartyTRAPayment,AMC RelatedPartyTRAPayment,AMC SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] Statement [Line Items] Statement [Line Items] Class of Stock [Domain] Class of Stock Class of Stock [Domain] Tax Period [Axis] Tax Period [Axis] Available-for-sale Securities, Gross Unrealized Loss Gross unrealized losses related to individual securities Available-for-sale Securities, Gross Unrealized Loss Statement [Table] Statement [Table] Range Range [Axis] Statistical Measurement [Axis] Cumulative Effect Adjustment for Adoption of ASU 2016-13 Cumulative Effect Adjustment for Adoption of ASU 2016-13 Cumulative Effect Adjustment for Adoption of ASU 2016-13 Repayments of revolving credit facility Repayments of Long-term Lines of Credit Costs and Other Reimbursement Costs and Other Reimbursement Costs and Other Reimbursement AccAmort,InangibleAsset,Affiliates AccAmort,InangibleAsset,Affiliates,Disposals AccAmort,InangibleAsset,Affiliates,Disposals Marketable Securities Marketable Securities, Policy [Policy Text Block] Percentage of cash savings related to taxes Percentage Of Cash Savings Related To Taxes Percentage of cash savings related to taxes. Entity Small Business Entity Small Business Consolidation Consolidation, Policy [Policy Text Block] Common stock, shares sold (in shares) Sale of Stock, Number of Shares Issued in Transaction Fair Value Hierarchy Fair Value Hierarchy and NAV [Domain] Borrowings Debt Disclosure [Text Block] Cash dividends on shares of NMC Inc Investment Income, Dividend Amendment Flag Amendment Flag Weighted Average Remaining Contractual Life (in years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest [Abstract] DebtInstrumentBasisSpreadOnVariableRateIncrease DebtInstrumentBasisSpreadOnVariableRateIncrease DebtInstrumentBasisSpreadOnVariableRateIncrease WEIGHTED AVERAGE SHARES OUTSTANDING: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Unrecognized tax benefits, payment of interest and penalties accrued Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued Common stock available for issuance Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Other Intangible Assets, Net Disposals of Intangible Assets, Net Disposals of Intangible Assets, Net Founding member advertising revenue from beverage concessionaire agreements Founding Member Advertising Revenue From Beverage Concessionaire Agreements [Member] Founding member advertising revenue from beverage concessionaire agreements. Number of customers contributing to more than 10% of revenue Number Of Customers Contributing To More Than Ten Percent Of Revenue Number of customers contributing to more than 10% of revenue. Common stock available for grants Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Other accrued expenses Other Accrued Liabilities, Current Tax Year 2013 Tax Year 2013 [Member] Measurement Frequency Measurement Frequency [Axis] (Decrease) increase in dividend equivalent accrual not requiring cash in the period Increase Decrease In Dividends Not Requiring Cash Increase decrease in dividends not requiring cash. Estimated Fair Values of Company's Financial Instruments Fair Value, by Balance Sheet Grouping [Table Text Block] Fair Value Measurement Fair Value Measurement [Domain] On or After August 15, 2021 [Member] Debt Instrument, Redemption, Period Three [Member] Subsequent Event Subsequent Events [Text Block] Redemption of Senior Notes due 2021 Repayments of Unsecured Debt On or After April 15, 2017 [Member] Debt Instrument Redemption Period Six [Member] Debt instrument redemption period six. Income tax payable Accrued Income Taxes, Noncurrent Property, Plant and Equipment, Type Long-Lived Tangible Asset [Axis] Balance at beginning of period Balance at end of period SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount Schedule of Valuation and Qualifying Accounts Schedule Of Valuation And Qualifying Accounts Table [Text Block] Schedule of Valuation And Qualifying Accounts [Table Text Block] NetworkAffiliateTransactionsRelatedParty NetworkAffiliateTransactionsRelatedParty NetworkAffiliateTransactionsRelatedParty Accounts Receivable, Allowance for Credit Loss, Current Less: Allowance for doubtful accounts Accounts Receivable, Allowance for Credit Loss, Current Income Statement Location Income Statement Location [Domain] Other Commitments [Line Items] Other Commitments [Line Items] State State and Local Jurisdiction [Member] Number of restricted stock and restricted stock units expected to vest, after consideration of expected forfeitures of shares Share Based Compensation Arrangement By Share Based Payment Award Other Than Options Expected To Vest After Consideration Of Expected Forfeitures Outstanding Number Share based compensation arrangement by share based payment award other than options expected to vest after consideration of expected forfeitures outstanding number. Theater access fees and revenue share, net of beverage revenues    and other encumbered theater payments Theater Access Fees Net Of Beverage Revenues And Other Encumbered Theaters Payments Theater access fees net of beverage revenues and other encumbered theaters payments. Memorandum Of Understanding To Effectuate Aspects Of Final Judgment Memorandum Of Understanding To Effectuate Aspects Of Final Judgment [Member] Memorandum of understanding to effectuate aspects of Final Judgment. Percentage of common membership units outstanding Limited Liability Company or Limited Partnership, Members or Limited Partners, Ownership Interest Proceeds from Collection of Long-term Loans to Related Parties Proceeds from Collection of Long-term Loans to Related Parties us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 Other assets Other Assets, Noncurrent Plan Name Plan Name [Axis] Cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Membership units exchangeable into common stock ratio Membership Units Conversion Ratio Membership units conversion ratio. Investment in consolidated subsidiary NCM LLC Deferred tax assets recognized Deferred Tax Assets, Investment in Subsidiaries Gain on reduction of payable to founding members under tax receivable agreement Gain Loss On Reduction Of Payable To Founding Members Under Tax Receivable Agreement Gain (loss) on reduction of payable to founding members under tax receivable agreement. Change in deferred tax asset related to Tax Cuts and Jobs Act Tax Cuts And Jobs Act Of 2017, Change In Tax Rate, Deferred Tax Asset, Income Tax Expense (Benefit) Tax Cuts And Jobs Act Of 2017, Change In Tax Rate, Deferred Tax Asset, Income Tax Expense (Benefit) TOTAL ASSETS TOTAL ASSETS Assets Related Party Transactions Related Party Transactions Disclosure [Text Block] Tax Year 2016 Tax Year 2017 Tax Year 2017 [Member] Sale of membership units (in shares) Sale Of Membership Units, Number Of Shares Sold Sale Of Membership Units, Number Of Shares Sold Interest on borrowings Interest Expense, Debt Basis of Presentation and Summary of Significant Accounting Policies Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] Number of restricted shares and restricted stock units, Non-vested, beginning balance (in shares) Number of restricted shares and restricted stock units, Non-vested, ending balance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Purchase of subsidiary equity with NCM, Inc. equity Noncash or Part Noncash Acquisition, Investments Acquired Subsequent Event Type Subsequent Event Type [Axis] Antidilutive Securities Antidilutive Securities [Axis] Amortization of Leased Asset Amortization of Leased Asset Share-based compensation Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Amount Total liabilities Total liabilities Liabilities Debt issuance costs Debt Issuance Costs, Capitalized During Period Debt Issuance Costs, Capitalized During Period Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term Weighted average remaining contractual life, Vested and Expected to Vest Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Purchase of an intangible asset with NCM LLC equity Noncash or Part Noncash Acquisition, Intangible Assets Acquired Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] Fair Value, Inputs, Level 1 [Member] Unrecognized tax benefits, income tax penalties and interest expense Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense Options contractual term Share Based Compensation Arrangement By Share Based Payment Award Award Contractual Term Share Based Compensation Arrangement By Share Based Payment Award Award Contractual Term Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Weighted-average interest rate Debt, Weighted Average Interest Rate Number of Restricted Shares and Restricted Stock Units Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Additional Paid in Capital (Deficit) Additional Paid In Capital (Deficit) Additional Paid-in Capital [Member] Non-Operating Income [Member] Nonoperating Income (Expense) [Member] Other Other Receivable [Member] Other receivable. Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted Common Membership Units Issued Common membership units issued (in shares) Common Membership Units Issued Common membership units issued. Percentage of increase in payment per digital screen and digital cinema equipment Percentage Of Increase In Payment Per Digital Screen And Digital Cinema Equipment Percentage of increase in payment per digital screen and digital cinema equipment. Investment in AC JV, LLC Equity Method Investments Common stock, shares outstanding (in shares) Balance, (in shares) Balance, (in shares) Common Stock, Shares, Outstanding Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Payment terms Revenue, Performance Obligation, Payment Terms Revenue, Performance Obligation, Payment Terms Interest income from notes receivable (included in interest income) Interest Income, Related Party Revolving credit facility Revolving Credit Facility [Member] Repurchase Agreements and Similar Transactions, Maturity Periods [Axis] Repurchase Agreements and Similar Transactions, Maturity Periods [Axis] Regional Advertising Revenue [Member] Regional Advertising Revenue [Member] Regional Advertising Revenue [Member] INCOME BEFORE INCOME TAXES INCOME BEFORE INCOME TAXES Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Tax Year 2017 Tax Year 2018 [Member] Income tax examination, year under examination Income Tax Examination, Year under Examination Weighted Average Exercise Price, Outstanding, beginning balance (in dollars per share) Weighted average exercise price, Outstanding, ending balance (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Noncancelable contract terms Noncancelable Contract Terms Noncancelable contract terms. Common stock, shares authorized (in shares) Common Stock, Shares Authorized Property and equipment Property, Plant and Equipment, Gross Add: Dilutive effect of stock options, restricted stock, and exchangeable NCM LLC common membership units Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Proceeds from Stock Options Exercised Proceeds from Stock Options Exercised Deferred Federal Deferred Federal Income Tax Expense (Benefit) Cumulative Effect Adjustment for Adoption of ASU 2016-13 to Retained Earnings Cumulative Effect Adjustment for Adoption of ASU 2016-13 to Retained Earnings Cumulative Effect Adjustment for Adoption of ASU 2016-13 to Retained Earnings Aggregate percentage of theater access fee paid Percentage Of Theater Access Fee Paid Percentage of theater access fee paid. Valuation Allowances and Reserves Type SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis] Unrecognized tax benefits including income tax accrued interest and penalties Unrecognized tax benefits including income tax accrued interest and penalties Unrecognized Tax Benefits Including Income Tax Penalties And Interest Accrued Unrecognized tax benefits including income tax penalties and interest accrued. Number of additional restricted stock issued under satisfying maximum performance criteria Number Of Additional Restricted Stock Issued Under Satisfying Maximum Performance Criteria Number of additional restricted stock issued under satisfying maximum performance criteria. Cinemark Cinemark Holdings Inc [Member] Cinemark holdings, Inc. Income Statement [Abstract] Income Statement [Abstract] AggregateRemainingofPrincipal,Notes2028 AggregateRemainingofPrincipal,Notes2028 AggregateRemainingofPrincipal,Notes2028 Vesting description Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights Dilutive Securities, Effect on Basic Earnings Per Share, Options and Restrictive Stock Units, Tax Dilutive Securities, Effect on Basic Earnings Per Share, Options and Restrictive Stock Units, Tax Dilutive Securities, Effect on Basic Earnings Per Share, Options and Restrictive Stock Units, Tax Interest receivable on notes receivable (included in other current assets) Interest Receivable Percentage Of Customer Contributing To More Than Ten Percent Of Revenue Percentage Of Customers Contributing To More Than Ten Percent Of Revenue Percentage Of Customers Contributing To More Than Ten Percent Of Revenue ContentSegmentSeconds ContentSegmentSeconds ContentSegmentSeconds Cash paid for interest Interest Paid, Including Capitalized Interest, Operating and Investing Activities Number of votes per common share Number Of Votes Per Common Share Number of votes per common share. Estimates Use of Estimates, Policy [Policy Text Block] Income Tax Authority Income Tax Authority [Domain] Increase (decrease) in intangible assets, net Finite-Lived Intangible Assets, Period Increase (Decrease) Troubled Debt Restructuring, Debtor, Subsequent Periods [Axis] Troubled Debt Restructuring, Debtor, Subsequent Periods [Axis] Other, net Other Expenses Debt Covenant Period [Domain] Debt Covenant Period [Domain] [Domain] for Debt Covenant Period [Axis] Scenario, Unspecified [Domain] Scenario [Domain] Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment Consolidation Items [Domain] Consolidation Items [Domain] Change in Accounting Principle Revision of Prior Period, Adjustment [Member] On-screen advertising time which founding members have right to purchase, in seconds Length Of On Screen Advertising Time Which Founding Members Have Right To Purchase Length of on-screen advertising time which founding members have a right to purchase Payment To Founding Members Under The Tax Receivable Agreement Payment To Founding Members Under The Tax Receivable Agreement Payment To Founding Members Under The Tax Receivable Agreement Impairment on investment Impairment of investment Cost-method Investments, Other than Temporary Impairment Amounts due from founding members, net Due from Related Parties, Current Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Abstract] Valuation Allowance Reversed Valuation Allowance Reversed [Member] Valuation Allowance Reversed Equity in earnings of non-consolidated entities Income (Loss) from Equity Method Investments Long-term Marketable Securities [Member] Long Term Marketable Securities [Member] Long-term marketable securities. Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Repayment of Senior Notes due 2022 and 2026 Proceeds from Issuance of Senior Long-term Debt Two Founding Members [Member] Two Founding Members [Member] Two founding members. Debt instrument redemption description Debt Instrument, Redemption, Description Entity [Domain] Entity [Domain] Short-term marketable securities Aggregate Fair Value - Short term marketable securities Available-for-sale Securities, Current Repurchase of stock for restricted stock tax withholding Payment, Tax Withholding, Share-based Payment Arrangement Reversal of accrued interest and penalties Reversal Of Accrued Interest And Penalties Reversal of accrued interest and penalties. 2007 Plan and 2016 Plan [Member] Two Thousand Seven Equity Incentive Plan And Two Thousand Sixteen Equity Incentive Plan [Member] Two thousand seven equity incentive plan and two thousand sixteen equity incentive plan. Quarterly Financial Data Quarterly Financial Information [Text Block] Local Advertising Revenue [Member] Local Advertising Revenue [Member] Local Advertising Revenue [Member] Intangible Assets Intangible Assets Disclosure [Text Block] Estimated useful life Property, Plant and Equipment, Useful Life Total deferred income tax expense Deferred Income Tax Expense Benefit Gross Deferred income tax expense benefit gross. Thereafter Operating Leases, Future Minimum Payments, Due Thereafter Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] 2018 Operating Leases, Future Minimum Payments Due, Next Twelve Months Related Party Costs Theater access fee Related Party Costs Debt Instrument, Net Total Leverage Ratio Debt Instrument, Net Total Leverage Ratio Debt Instrument, Net Total Leverage Ratio Schedule of Fiscal Year Ends Schedule Of Fiscal Year Ends Table [Text Block] Schedule of fiscal year ends. Deferred tax assets, net Deferred Tax Assets, Net Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table] Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table] Number of theaters required to transfer advertising rights Number Of Theaters Required To Transfer Advertising Rights Number of theaters required to transfer advertising rights. Related Party Founding Members Related Party Founding Members [Member] Related Party Founding Members [Member[ Restricted Stock [Member] Restricted Stock [Member] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Share-based Payment Arrangement [Abstract] Debt Covenant Period [Axis] Debt Covenant Period [Axis] Debt Covenant Period [Axis] Operating Lease, Liability, Current Short-term Lease Commitment, Amount Operating Lease, Liability, Current Accounting Policies [Table] Accounting Policies [Table] Accounting policies. Weighted average grant-date fair value, Forfeited (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Fair Value Measurements Fair Value Disclosures [Text Block] Accounts Receivable Accounts Receivable [Member] Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Term loans Term Loan [Member] Term loan. 2007 Plan [Member] Two Thousand Seven Equity Incentive Plan [Member] Two thousand seven equity incentive plan. Accounting Period Fiscal Period, Policy [Policy Text Block] Intangible Assets Goodwill and Intangible Assets, Intangible Assets, Policy [Policy Text Block] Entity Registrant Name Entity Registrant Name Subsequent Event Type Subsequent Event Type [Domain] Accounts Payable Accounts Payable Operating Lease, Weighted Average Discount Rate, Percent Operating Lease, Weighted Average Discount Rate, Percent Total non-current assets Assets, Noncurrent Asset Impairment Charges Asset Impairment Charges Deferred financing costs Beginning balance Ending balance Less: Debt issuance costs related to term loans and senior notes Debt Issuance Costs, Net Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Payment of dividends Payments of Ordinary Dividends, Common Stock Reduction in payable to founding members under the tax receivable agreement Reduction In Payable To Founding Members Under The Tax Receivable Agreement Reduction in payable to founding members under the tax receivable agreement. Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Dividends payable, date of record Dividends Payable, Date of Record Depreciation expense Depreciation, Depletion and Amortization, Nonproduction Common Membership Units [Member] Common Units [Member] Common units. Adjustments for New Accounting Pronouncements [Axis] Accounting Standards Update [Axis] RelatedPartyTRAPayment,Cinemark RelatedPartyTRAPayment,Regal RelatedPartyTRAPayment,Cinemark RelatedPartyTRAPayment,Cinemark Accounting Standards Update 2016-02 [Member] Accounting Standards Update 2016-02 [Member] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Total deferred tax assets, net of valuation allowance Deferred Tax Assets, Net of Valuation Allowance Prior to August 15, 2021 [Member] Debt Instrument, Redemption, Period Two [Member] Number of advertising agency groups contributing to more than 10% of outstanding gross receivable balance Number Of Advertising Agency Groups Contributing To More Than Ten Percent Of Outstanding Gross Receivables Number of advertising agency groups contributing to more than 10% Of outstanding gross receivables. Debt Securities, Available-for-sale [Line Items] Debt Securities, Available-for-sale [Line Items] Senior secured leverage ratio Senior Secured Leverage Ratio Senior secured leverage ratio. Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Deferred Tax Assets, Operating Loss Carryforwards Net operating losses Deferred Tax Assets, Operating Loss Carryforwards 2016 Equity Incentive Plan [Member] 2016 Equity Incentive Plan [Member] 2016 Equity Incentive Plan Dividends declared per common share (in usd per share) Dividends per share Common Stock, Dividends, Per Share, Declared Debt instrument face amount Debt Instrument, Face Amount Debt issuance costs, net Debt Issuance Costs, Line of Credit Arrangements, Net Gain (loss) from equity transaction investment due to change in ownership interest in NCM LLC Gain Loss From Equity Transaction Due To Change In Ownership Interest Gain (loss) from equity transaction due to change in ownership interest. Prepaid expenses and other current assets Other Assets, Current Schedule of Useful Lives Schedule Of Useful Lives Table [Text Block] Schedule of useful lives. Options, Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Total assets Assets, Fair Value Disclosure Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Finite-Lived Intangible Assets, Cost Incurred to Renew or Extend Finite-Lived Intangible Assets, Cost Incurred to Renew or Extend Supplemental disclosure of non-cash financing and investing activity: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Balance at beginning of year Balance at end of year Contract with Customer, Liability, Current Unaudited Consolidated Financial Statements and Corresponding Footnotes for Prior Periods Adjusted from Amounts Previously Reported to Reflect Correction of Error Schedule of Error Corrections and Prior Period Adjustments [Table Text Block] Customer Concentration Risk Customer Concentration Risk [Member] Summary of Estimated Aggregate Amortization Expense Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Diluted (in shares) Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Letters of Credit [Member] Letter of Credit [Member] Accrued distributions to founding members (including accrued payments due from related parties of $0.0 and $32.4, respectively) Noncash Distributions To Founding Members Noncash distributions to founding members. Number of restricted shares and restricted stock units, Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Debt Disclosure [Abstract] Debt Disclosure [Abstract] Income tax and other impacts of NCM LLC ownership changes Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Income Tax And Other Impacts Of Subsidiary Ownership Change Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Income Tax And Other Impacts Of Subsidiary Ownership Change Selling and marketing costs Selling and Marketing Expense Schedule of Fair Value of Separate Accounts by Major Category of Investment [Table] Fair Value, Separate Account Investment [Table] Proceeds from issuance of Senior Notes due 2028 Repayments of Long-term Debt Cumulative Effect Adjustment for Adoption of ASU 2016-13 Cumulative Effect Adjustment for Adoption of ASU 2016-13, Net Cumulative Effect Adjustment for Adoption of ASU 2016-13, Net Short-term Debt, Type Short-term Debt, Type [Axis] Remaining performance obligation Revenue, Remaining Performance Obligation, Amount Balance at beginning of period Balance at end of period Unrecognized Tax Benefits Tax Credit Carryforward, Name [Domain] Tax Credit Carryforward, Name [Domain] Common stock, $0.01 par value; 175,000,000 shares authorized, 78,040,818 and 77,568,986 issued and outstanding, respectively Common Stock, Value, Issued Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Document Fiscal Year Focus Document Fiscal Year Focus Other investments Total other investments Other Long-term Investments 2019 Finite-Lived Intangible Asset, Expected Amortization, Year Two Proceeds from Issuance of Secured Debt Proceeds from Issuance of Secured Debt NON-CURRENT ASSETS: Assets, Noncurrent [Abstract] SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] Less: current portion of debt Long-term Debt, Current Maturities Entity Current Reporting Status Entity Current Reporting Status Common membership units issued, net (in shares) Common Membership Units Issued Net Of Units Surrendered Common membership units issued net of units surrendered. Consolidated Net Total Leverage Ratio Consolidated Net Total Leverage Ratio Consolidated Net Total Leverage Ratio Related Party Transaction [Axis] Related Party Transaction [Axis] Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Document And Entity Information [Abstract] Document And Entity Information [Abstract] Document And Entity Information [Abstract] Recently Adopted Accounting Pronouncements Recently Adopted Accounting Pronouncements Policy [Text Block] Recently adopted accounting pronouncements. Number Of Days Utilized Within Membership Unit Redemption Payment Calculation Number Of Days Utilized Within Membership Unit Redemption Payment Calculation Number of days utilized within membership unit redemption payment calculation. Common stock, shares issued (in shares) Common Stock, Shares, Issued Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Operating Lease, Liability Operating Lease, Liability Long-term debt, net of debt issuance costs of $8.0 and $9.0, respectively Carrying value of long-term debt Long-term Debt, Excluding Current Maturities Debt Instrument [Line Items] Debt Instrument [Line Items] Local advertising revenue Local And Regional Advertising Revenue [Member] Local and regional advertising revenue. Concentration of credit risk as a percentage of accounts receivable Concentration of credit risk as a percentage of accounts receivable Concentration of credit risk as a percentage of accounts receivable Total NCM, Inc. stockholders’ equity/(deficit) Stockholders' Equity Attributable to Parent Entity Address, City or Town Entity Address, City or Town Share-based compensation expense related to modification of certain former executive equity awards Share-based Payment Arrangement, Plan Modification, Incremental Cost Accrued payroll and related expenses Employee-related Liabilities, Current Fair Value, Hierarchy Fair Value Hierarchy and NAV [Axis] Payments to Acquire Intangible Assets Purchase of intangible assets from affiliate Payments to Acquire Intangible Assets Restricted Stock Units (RSUs) [Member] Restricted Stock Units (RSUs) [Member] Equipment, Computer Hardware And Software [Member] Equipment Computer Hardware And Software [Member] Equipment, computer hardware and software. Type of Adoption [Domain] Accounting Standards Update [Domain] 2021 Operating Leases, Future Minimum Payments, Due in Four Years Short-term Lease, Cost Short-term Lease, Cost Deferred Tax Assets, Valuation Allowance Valuation allowance Deferred Tax Assets, Valuation Allowance Schedule of Available-for-sale Securities [Table] Schedule of Available-for-sale Securities [Table] 2020 Finite-Lived Intangible Asset, Expected Amortization, Year Three Other Liabilities, Current Other Liabilities, Current Investment, Name Investment, Name [Domain] Repurchase Agreements and Similar Transactions, Maturity Periods [Domain] Repurchase Agreements and Similar Transactions, Maturity Periods [Domain] Leases [Abstract] Leases [Abstract] Maturities Available For Sale Securities Maturity Available for sale securities maturity. Long-term Debt, Type Long-term Debt, Type [Axis] Total current assets Assets, Current Amount Increase In Payment Per Theater Patron Amount Increase In Payment Per Theater Patron Amount Increase In Payment Per Theater Patron Net operating loss carryforwards Operating Loss Carryforwards NET (LOSS) INCOME PER NCM, INC. COMMON SHARE: Earnings Per Share [Abstract] Schedule of Components of Deferred Tax Assets Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Debt instrument issued percentage of face value Debt Instrument Issued Percentage Of Face Value Debt instrument issued percentage of face value. Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss Noncontrolling Interest, Increase from Subsidiary Equity Issuance Noncontrolling Interest, Increase from Subsidiary Equity Issuance Estimated annual forfeiture rate, percentage Share Based Compensation Arrangement By Share Based Payment Award Estimated Annual Forfeiture Rate Share based compensation arrangement by share based payment award estimated annual forfeiture rate. Integration payments Cost and other reimbursement Integration Payments Due From Related Parties Integration payments due from related parties. 2022 Finite-Lived Intangible Asset, Expected Amortization, Year Five Document Fiscal Period Focus Document Fiscal Period Focus SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] Certificates of Deposit Certificates of Deposit [Member] Purchases of marketable securities Payments to Acquire Available-for-sale Securities Term Loan Margin Increase Term Loan Interest Rate Increase Following Amendment Term Loan Interest Rate Increase Following Amendment Deferred Tax Asset [Domain] Deferred Tax Asset [Domain] Terminating exclusion of performance-based compensation per employee per year limitation Tax Cuts And Jobs Act Of2017 Terminating Exclusion Of Performance Based Compensation Per Employee Per Year Limitation Tax cuts and jobs act of 2017 terminating exclusion of performance-based compensation per employee per year limitation. Debt instrument redemption price percentage Debt Instrument, Redemption Price, Percentage Entity Filer Category Entity Filer Category Schedule of Share-Based Compensation Costs Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Common Stock [Member] Common Stock Common Stock [Member] Product and Service [Domain] Product and Service [Domain] Cumulative Effect Adjustment for Adoption of ASU 2016-13 to NCI Cumulative Effect Adjustment for Adoption of ASU 2016-13 to NCI Cumulative Effect Adjustment for Adoption of ASU 2016-13 to NCI Concentration Risk Benchmark Concentration Risk Benchmark [Domain] Promissory notes receivable from founding members Notes Receivable, Related Parties Less: Noncontrolling interests Effective Income Tax Rate Reconciliation, Noncontrolling Interest Income (Loss), Amount Change in accounting principle not related to a new ASU Change In Accounting Principle Not Related To A New Accounting Standards Update [Member] Change In Accounting Principle Not Related To A New Accounting Standards Update [Member] Leasehold improvements Leasehold Improvements [Member] Sales Revenue, Net Revenue Benchmark [Member] Interest rate on notes receivable Notes Receivable Stated Interest Rate Notes receivable stated interest rate. Interest Rate Stated interest rate Debt Instrument, Interest Rate, Stated Percentage Municipal Bonds Municipal Bonds [Member] Write-off of debt issuance costs Write off of Deferred Debt Issuance Cost Write off of Deferred Debt Issuance Cost Schedule of Related Party Transactions Schedule of Related Party Transactions [Table Text Block] NCM, Inc. investment in NCM LLC Adjustments To Additional Paid In Capital, Parent Investment In Subsidiary Adjustments To Additional Paid In Capital, Parent Investment In Subsidiary Deferred Tax Asset, Sale Of Membership Units Deferred Tax Asset, Sale Of Membership Units Deferred Tax Asset, Sale Of Membership Units Percentage increase (decrease) in theater attendance for Common Unit adjustment to occur Percentage Increase Decrease In Theater Attendance For Common Unit Adjustment To Occur Percentage change in theater attendance for Common Unit adjustment to occur. CHANGE IN CASH AND CASH EQUIVALENTS Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect NCM, LLC. National Cine Media L L C [Member] National CineMedia, LLC. Total Total non-operating expenses Nonoperating Income (Expense) Stock Options [Member] Share-based Payment Arrangement, Option [Member] Income Taxes [Line Items] Income Taxes [Line Items] Income Taxes [Line Items] Founding Member Ownership in ACJV, LLC Ownership in ACJV, LLC Ownership in ACJV, LLC Subsequent Events [Abstract] Subsequent Events [Abstract] Founding Member Integration and Encumbered Payments due from Related Parties Founding Member Integration and Encumbered Payments due from Related Parties Founding Member Integration and Encumbered Payments due from Related Parties Deferred State Deferred State and Local Income Tax Expense (Benefit) Disposal Group, Including Discontinued Operation, Intangible Assets Disposals of Intangible Assets, Gross Disposals of Intangible Assets, Gross 2023 Long-Term Debt, Maturity, Year Five Ownership [Domain] Ownership [Domain] Tax Period [Domain] Tax Period [Domain] Total equity/(deficit) Balance Balance Total equity/(deficit) Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Decrease in ending balance of APIC Additional Paid in Capital Revenue Revenues 2018 Finite-Lived Intangible Asset, Expected Amortization, Year One 2020 Operating Leases, Future Minimum Payments, Due in Three Years Class of Stock [Axis] Class of Stock Class of Stock [Axis] Cash paid for income taxes, net of refunds Income Taxes Paid, Net Impairment of Intangible Assets (Excluding Goodwill) Impairment of Intangible Assets (Excluding Goodwill) Discretionary contributions Defined Contribution Plan, Employer Discretionary Contribution Amount change in deferred tax asset [Member] Change in Deferred Tax Asset [Member] Change in Deferred Tax Asset Maturity date Debt Instrument, Maturity Date New Accounting Pronouncements or Change in Accounting Principle [Table] Accounting Standards Update and Change in Accounting Principle [Table] Accrued expenses Total accrued expenses Accrued Liabilities, Current Diluted (in usd per share) (Loss) Earnings per NCM, Inc. share, diluted Earnings Per Share, Diluted 2019 Operating Leases, Future Minimum Payments, Due in Two Years Federal and State Domestic Tax Authority And State And Local Jurisdiction [Member] Domestic Tax Authority And State And Local Jurisdiction [Member] Short-term Marketable Securities [Member] Short Term Marketable Securities [Member] Short-term marketable securities. Schedule of Reconciliation of Unrecognized Tax Benefits, Excluding Interest and Penalties Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Schedule of Outstanding Debt Schedule of Debt [Table Text Block] Aggregate Principal Amount, Revolving loans Aggregate Principal Amount, Revolving loans Aggregate Principal Amount, Revolving loans Depreciation expense Depreciation Entity Address, Address Line One Entity Address, Address Line One Entity Emerging Growth Company Entity Emerging Growth Company Financial Certificates Of Deposit Financial Certificates Of Deposit [Member] Financial certificates of deposit. Deferred income tax expense Deferred Income Tax Expense (Benefit) Accrued Rent, Current Accrued Rent, Current Percentage open of theaters in network Percentage of theaters open in network Percentage of theaters open in network Finite-Lived Intangible Assets, Accumulated Amortization Accumulated amortization, beginning balance Accumulated amortization, ending balance Finite-Lived Intangible Assets, Accumulated Amortization Maximum Maximum [Member] Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Noncontrolling Interest Noncontrolling Interest [Member] Share-based compensation Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost Cash dividends declared Dividends, Common Stock, Cash Subtotal Property Plant And Equipment Net Before Construction In Progress Property Plant And Equipment Net Before Construction In Progress Distributions to founding members Payments of Distributions to Affiliates Incremental Term Loan Rate Incremental Term Loan Rate Incremental Term Loan Rate Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Effective tax rate Effective Income Tax Rate Reconciliation, Percent Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Investments Investments [Domain] Trading Symbol Trading Symbol Term of advertising services Term Of Advertising Services Term of advertising services. Repurchase amount Debt Instrument, Repurchase Amount Equipment Equipment [Member] Entity Shell Company Entity Shell Company Fair Value, Measurements, Recurring [Member] Fair Value, Recurring [Member] Agreement With Founding Members, Remaining Term Agreement With Founding Members, Remaining Term Agreement With Founding Members, Remaining Term Weighted average exercise price, Expired (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price Entity Public Float Entity Public Float Barter Transaction Revenue Barter Transaction Revenue [Member] Barter Transaction Revenue [Member] Document Type Document Type Additional Tax Payments Additional Tax Payments Additional Tax Payments ICFR Auditor Attestation Flag ICFR Auditor Attestation Flag Other non-operating expense (income) Other Nonoperating Income (Expense) Proceeds from lessor on purchases of property, plant, and equipment Proceeds From Operating Leases Proceeds From Operating Leases Accounts payable and accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities Additional paid in capital (deficit) Additional Paid In Capital And Accumulated Deficit Common Stock Additional paid in capital and accumulated deficit common stock. Payables and Accruals [Abstract] Payables and Accruals [Abstract] Payable to founding members under the TRA (related party payables of $23.7 and $133.5, respectively) Long-term payable to founding members under tax receivable agreement Payable To Founding Members Under Tax Sharing Agreement Noncurrent Payable to founding members under tax sharing agreement, noncurrent. Short Term Commercial Paper - Industrial Short Term Commercial Paper - Industrial [Member] Short Term Commercial Paper - Industrial Segments [Axis] Segments [Axis] Valuation Allowances and Reserves SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] Employee Benefit Plans Retirement Benefits [Text Block] Weighted average grant-date fair value, Vested (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Short Term Commercial Paper - Financial Short Term Commercial Paper - Financial [Member] Short Term Commercial Paper - Financial Concentration of Credit Risk and Significant Customers Concentration Of Credit Risk And Significant Customers Policy [Text Block] Disclosure of accounting policy for concentration of credit risk and significant customers. Increase in cost and equity method investments Increase (Decrease) In Cost And Equity Method Investments Increase (Decrease) In Cost And Equity Method Investments Issuance of shares to founding members Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Issuance of Equity by Subsidiary to Noncontrolling Interests Effective Income Tax Rate Reconciliation, Tax Contingency, Amount Uncertain tax positions (reversal) Effective Income Tax Rate Reconciliation, Tax Contingency, Amount Reversal of unrecognized tax benefits Reversal Of Unrecognized Tax Benefits Reversal of unrecognized tax benefits. Platinum Spot Revenue Percentage Platinum Spot Revenue Percentage Platinum Sport Revenue Percentage OPERATING (LOSS) INCOME Operating Income (Loss) Deferred revenue Deferred Revenue, Current Payment of debt issuance costs Payments of Debt Issuance Costs Network Costs Network Costs [Member] Network costs. Make-good reserve Accrued Reserves Accrued reserves. Short Term U.S. Agency Bonds Short Term U.S. Agency Bonds [Member] Short Term U.S. Agency Bonds Contract with Customer, Asset and Liability Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Net cash provided by operating activities Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities, Continuing Operations Variable Rate Variable Rate [Axis] Stock Issued Duing Period, Value, New Issues APIC Stock Issued Duing Period, Value, New Issues APIC Stock Issued Duing Period, Value, New Issues APIC COMMITMENTS AND CONTINGENCIES (NOTE 13) Commitments and Contingencies Percent of compensation participants may contribute Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent Senior Unsecured Notes Due Two Zero Two Eight Senior Unsecured Notes Due Two Zero Two Eight [Member] Senior Unsecured Notes Due Two Zero Two Eight Share-based compensation, vesting period Vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Consolidated Net Senior Secured Leverage Ratio Consolidated Net Senior Secured Leverage Ratio Consolidated Net Senior Secured Leverage Ratio Entity Address, State or Province Entity Address, State or Province Number of restricted shares and restricted stock units, Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Income before income taxes Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Accounts payable Accounts Payable, Current Other Commitments [Table] Other Commitments [Table] Retained earnings (distributions in excess of earnings) Retained Earnings (Accumulated Deficit) Operating Lease, Right-of-Use Asset Operating Lease, Right-of-Use Asset Loss on early retirement of debt, net Gain (Loss) on Extinguishment of Debt RedemptionAggregate,Notes2028 RedemptionAggregate,Notes2028 RedemptionAggregate,Notes2028 NCM, Inc. Stockholders’ Equity/(Deficit): Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] OtherCFfromOperatingActivities OtherCFfromOperatingActivities OtherCFfromOperatingActivities Credit Concentration Risk Credit Concentration Risk [Member] Tax Year 2015 Tax Year 2015 [Member] Income Taxes Income Tax, Policy [Policy Text Block] Stock Issued During Period, Value, New Issues, Consolidated Stock Issued During Period, Value, New Issues, Consolidated Stock Issued During Period, Value, New Issues, Consolidated Lease, Cost Lease, Cost Options, Exercisable (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number APIC, Share-based Payment Arrangement, Increase for Cost Recognition APIC, Share-based Payment Arrangement, Increase for Cost Recognition Related Party Transaction, Description of Transaction Related Party Transaction, Description of Transaction Industrial Certificates Of Deposit Industrial Certificates Of Deposit [Member] Industrial certificates of deposit. Construction in progress Construction in Progress, Gross Thereafter Long-Term Debt, Maturity, after Year Five Revenue (including revenue from related parties of $4.9 and $23.0, respectively) Revenue Revenue from Contract with Customer, Excluding Assessed Tax Achievement of percentage in performance based restricted stock Achievement Of Percentage In Performance Based Restricted Stock Achievement of percentage in performance based restricted stock. Cash dividends declared, per share Dividends Payable, Amount Per Share Range of terms, in years Revenue Guarantee Period Revenue guarantee period. Expense for early lease termination fee Gain (Loss) on Termination of Lease Credit Facility Availability Compliance Credit Facility Availability Compliance Credit Facility Availability Compliance Proceeds from revolving credit facility Proceeds from Long-term Lines of Credit Accrued interest Interest Payable, Current Entity Voluntary Filers Entity Voluntary Filers Tax Credit Carryforward [Axis] Tax Credit Carryforward [Axis] Amounts Due to/from Founding Members Amounts Due To From Founding Members Policy [Text Block] Amounts due to from founding members. Covenant During Waiver Max [Member] Covenant During Waiver Max [Member] Covenant During Waiver Max Credit Facility Credit Facility [Axis] Debt Instrument Debt Instrument, Fair Value Disclosure Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued U.S. Government Agency Bonds US Government Agencies Debt Securities [Member] Deferred tax assets, net of valuation allowance of $212.0 and $81.6, respectively Long-term deferred tax assets, net of valuation allowance Deferred Tax Assets, Net of Valuation Allowance, Noncurrent Operating Costs Operating Costs Policy [Text Block] Operating costs. Capital Loss Carryforward Capital Loss Carryforward [Member] Weighted average remaining contractual life, Exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Proceeds from sale of common stock Proceeds from Issuance of Common Stock Prior to August 15, 2019 [Member] Debt Instrument, Redemption, Period One [Member] Beginning retained earnings, as of December 29, 2016 – as adjusted Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance (Deprecated 2020-01-31) Weighted Average Term, ESA and Affiliate Weighted Average Term, ESA and Affiliate Weighted Average Term, ESA and Affiliate Uncollectible Receivables [Member] Uncollectible Receivables [Member] Proceeds from sale and maturities of marketable securities Proceeds from Sale and Maturity of Debt Securities, Available-for-sale Schedule of Earnings Per Share, Basic and Diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Total Operating Leases, Future Minimum Payments Due Accretion of interest on the discounted payable to founding members under the TRA Accretion of interest on the discounted payable to founding members under the TRA Accretion Expense Fair Values of the Company's Assets Fair Value, Assets Measured on Recurring Basis [Table Text Block] Incremental Term Loan Incremental Term Loan Incremental Term Loan Fair Value Measurements Fair Value Measurement, Policy [Policy Text Block] Adjustments To Additional Paid In Capital, Parent Investment In Subsidiary, net Adjustments To Additional Paid In Capital, Parent Investment In Subsidiary, net Adjustments To Additional Paid In Capital, Parent Investment In Subsidiary, net Entity Central Index Key Entity Central Index Key Related Party [Domain] Related Party [Domain] Computer Software, Intangible Asset Computer Software, Intangible Asset [Member] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Network costs Network Costs Direct costs arising from transactions associated with network operations. These costs are categorized as cost of goods sold. Total amounts due to founding members, net Related Party Transaction, Due from (to) Related Party Finite-Lived Intangible Assets by Major Class Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Summary of Intangible Asset's Activity Schedule of Finite-Lived Intangible Assets [Table Text Block] Software And Development Costs Software And Development Costs [Member] Software and development costs. Gross unrealized losses related to individual securities had been in continuous loss position for 12 months or longer Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Income tax receivable Income Taxes Receivable, Current Change in the valuation allowance (1) Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount Segments [Domain] Segments [Domain] Net income attributable to NCM, Inc. following    conversion of dilutive membership units (in millions) Net Income (Loss) Attributable to Parent, Diluted Recently Issued Accounting Pronouncements Recently Issued Accounting Pronouncements Policy [Text Block] Recently issued accounting pronouncements. Common membership units surrendered due to required theater transfer, value Value Of Common Membership Units Surrendered For Transferred Theaters Value of common membership units surrendered for transferred theaters. Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Unvested Stock Options [Member] Unvested Stock Options [Member] Unvested stock options. 2022 Long-Term Debt, Maturity, Year Four Long Term Certificates of Deposit [Member] Long Term Certificates of Deposit [Member] Long Term Certificates of Deposit Income Statement Location Income Statement Location [Axis] Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Changes in Debt Issuance Costs Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block] Current Federal Current Federal Tax Expense (Benefit) Stockholders' Equity Note [Abstract] Stockholders' Equity Note [Abstract] Amortization of Intangible Assets Stock Issued During Period, Shares, New Issues Amortization expense Amortization Amortization of Intangible Assets Payments to affiliates for tax sharing agreement Payments To Affiliates For Tax Sharing Agreement Payments to affiliates for tax sharing agreement. Interest income Interest and Other Income Issuance of shares, value Stock Issued During Period, Value, New Issues Scenario [Axis] Scenario [Axis] Title of 12(b) Security Title of 12(b) Security Change of Control Change Of Control [Member] Change of control. Payable to founding members under the TRA (related party payables of $0.6 and $10.3, respectively) Current payable to founding members under tax receivable agreement Payable To Founding Members Under Tax Sharing Agreement Current Payable to founding members under tax sharing agreement, current. Schedule Of Accrued Expenses Schedule of Accrued Liabilities [Table Text Block] Intangible assets, net of accumulated amortization of $223.0 and $198.9, respectively Intangible assets, net of accumulated amortization Total intangible assets, net, beginning balance Total intangible assets, net, ending balance Finite-Lived Intangible Assets, Net Weighted average grant date fair value of granted options Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Executive compensation Effective Income Tax Rate Reconciliation, Executive Compensation, Amount Effective Income Tax Rate Reconciliation, Executive Compensation, Amount As Reported Previously Reported [Member] Research And Experimentation Tax Credit Carryforward Research Tax Credit Carryforward [Member] Schedule of Components of Income Tax Expense Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Product and Service [Axis] Product and Service [Axis] Investment Type Investment Type [Axis] Weighted average remaining period over which unrecognized compensation costs will be recognized Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition 2020 Long-Term Debt, Maturity, Year Two Tax Year 2016 Tax Year 2016 [Member] Cash payment due to founding members/managing member Distributions Payable Distributions Payable Distributions payable. NCM LLC NCM LLC [Member] NCM LLC Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Senior Unsecured Notes Due Two Zero Two Eight [Domain] Senior Unsecured Notes Due Two Zero Two Eight [Domain] Senior Unsecured Notes Due Two Zero Two Eight [Domain] Debt instrument, frequency of periodic payment Debt Instrument, Frequency of Periodic Payment Debt Instrument Debt Instrument [Axis] Available-for-sale Securities Aggregate Fair Value - Total marketable securities Available-for-sale Securities Antidilutive Securities, Name Antidilutive Securities, Name [Domain] Schedule of Quarterly Financial Data Quarterly Financial Information [Table Text Block] Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Class of Stock [Line Items] Class of Stock [Line Items] Integration and other encumbered theater payments Finite Lived Intangible Assets Integration And Other Encumbered Theater Payments During Period Finite lived intangible assets integration and other encumbered theater payments during period. Unbilled contracts receivable Unbilled Contracts Receivable Adjustments to reconcile consolidated net (loss) income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Measurement period Share Based Compensation Measurement Period Share Based Compensation Measurement Period Receivables Accounts Receivable, before Allowance for Credit Loss, Current Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Cost-method ownership percentage Cost Method Investment Ownership Percentage Cost method investment ownership percentage. Variable Lease, Cost Variable Lease, Cost State and local income taxes, net of federal benefit Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount 2020 Omnibus Plan 2020 Omnibus Incentive Plan [Member] 2020 Omnibus Incentive Plan Research and development expense Research and Development Expense Subsequent Event [Member] Subsequent Event [Member] Net senior secured leverage ratio Debt Instrument, Dividend Restriction, Net Senior Secured Leverage Ratio Debt Instrument, Dividend Restriction, Net Senior Secured Leverage Ratio Federal Domestic Tax Authority [Member] Concentration Risk Type Concentration Risk Type [Axis] Net total leverage ratio, covenant Debt Instrument, Covenant, Net Total Leverage Ratio Debt Instrument, Covenant, Net Total Leverage Ratio Revenue Recognition Revenue [Policy Text Block] Credit Agreement EBITDA Limit Credit Agreement EBITDA Limit Credit Agreement EBITDA Limit Fair Value [Member] Estimate of Fair Value Measurement [Member] NCM LLC membership unit issuance to NCM, Inc. Income Tax Reconciliation Issuance Of Affiliate Membership Unit Income tax reconciliation issuance of affiliate membership unit. Repayments of term loan facility Repayments of term loan facility Repayments of Senior Debt Operating Lease, Liability, Noncurrent Operating Lease, Liability, Noncurrent 2021 Finite-Lived Intangible Asset, Expected Amortization, Year Four Restricted Stock and Restricted Stock Units Restricted Stock And Restricted Stock Units [Member] Restricted stock and restricted stock units. Total lease expense Operating Leases, Rent Expense Network Affiliates Network Affiliates [Member] Network affiliates. Deferred Rent Credit, Noncurrent Deferred Rent Credit, Noncurrent Net reduction to additional paid in capital Adjustment To Additional Paid In Capital Due To Deferred Tax Asset Liability Adjustment to additional paid in capital due to deferred tax asset liability. CURRENT ASSETS: Assets, Current [Abstract] CASH FLOWS FROM INVESTING ACTIVITIES: Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Troubled Debt Restructuring, Debtor, Subsequent Periods, Contingent Payments, Name [Domain] Troubled Debt Restructuring, Debtor, Subsequent Periods, Contingent Payments, Name [Domain] Changes in Equity Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Table Text Block] COMPREHENSIVE (LOSS) INCOME ATTRIBUTABLE TO NCM, INC. Comprehensive Income (Loss), Net of Tax, Attributable to Parent Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Preferred stock, par value (in usd per share) Preferred Stock, Par or Stated Value Per Share 2019 Long-Term Debt, Maturity, Year One Schedule of Reconciliation of Provision for Income Taxes Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Write-offs, net SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction Stock Options And Non-Vested Restricted Stock [Member] Stock Options And Non Vested Restricted Stock [Member] Stock options and non-vested restricted stock. Legal Entity [Axis] Legal Entity [Axis] City Area Code City Area Code Income Tax Authority Income Tax Authority [Axis] Document Period End Date Document Period End Date Consolidated net (loss) income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] Vesting percentage for year Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Rights Percentage Per Year Share based compensation arrangement by share based payment award award vesting rights percentage per year. Quarterly Financial Information Disclosure [Abstract] Quarterly Financial Information Disclosure [Abstract] Capitalized share-based compensation expense Share-based Payment Arrangement, Amount Capitalized Long-term Debt, Type Long-term Debt, Type [Domain] Non-cash share-based compensation Share-based Payment Arrangement, Noncash Expense Accumulated Depreciation, Depletion and Amortization, Property, Plant and Equipment, Period Increase (Decrease) Property, Plant, and Equipment, Owned, Accumulated Depreciation Tax Year 2019 Tax Year 2019 [Member] Base Rate [Member] Base Rate [Member] Long-term Debt Total Long-term Debt Deferred revenue Increase (Decrease) in Contract with Customer, Liability On-screen advertising time purchased, in seconds Length Of On Screen Advertising Time Which Founding Members Purchased Length of on screen advertising time which founding members purchased. Common membership units surrendered to compensate for lost operating income (in shares) Common Membership Units Surrendered To Compensate For Lost Operating Income For Transferred Theaters Common membership units surrendered to compensate for lost operating income for transferred theaters. Proceeds from restricted cash Proceeds From Restricted Stock Proceeds From Restricted Stock Schedule of Mandatory Distributions to Members Distributions Made to Limited Liability Company (LLC) Member, by Distribution [Table Text Block] Concentration Risk Benchmark Concentration Risk Benchmark [Axis] Advertising operating costs Costs of goods and services sold Cost of Goods and Services Sold Total Operating expenses Costs and Expenses Equity Components [Axis] Equity Components [Axis] Short-term Certificates of Deposit Short-term Certificates of Deposit [Member] Short-term Certificates of Deposit Debt Instrument, Name Debt Instrument, Name [Domain] Total gross deferred tax assets Deferred Tax Assets, Gross Minimum Minimum [Member] TotalLeaseLiability TotalLeaseLiability TotalLeaseLiability Beverage Concessionaire Beverage Concessionaire [Member] Beverage concessionaire. Nonoperating gain (loss) related to debt issuance costs Nonoperating Gain (Loss) Related To Debt Issuance Costs Nonoperating Gain (Loss) Related To Debt Issuance Costs Cumulative effect for change in accounting principle Cumulative Effect of New Accounting Principle in Period of Adoption (Deprecated 2020-01-31) Tax Cuts and Jobs Act, Measurement Period Adjustment, Income Tax Expense (Benefit) Tax Cuts and Jobs Act, Measurement Period Adjustment, Income Tax Expense (Benefit) Amortization rate Debt Instrument, Amortization Rate Debt Instrument, Amortization Rate Senior Secured Notes Due Two Zero Two Eight [Member] [Domain] Senior Secured Notes Due Two Zero Two Eight [Member] [Domain] [Domain] for Senior Secured Notes Due Two Zero Two Eight [Member] [Axis] Less:  Net (loss) income attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest 2019 ESA Amendment Year Extension 2019 ESA Amendment Year Extension 2019 ESA Amendment Year Extension Entity Interactive Data Current Entity Interactive Data Current Equity Stockholders' Equity Note Disclosure [Text Block] Summary of Option Award Activity Share-based Payment Arrangement, Option, Activity [Table Text Block] Unused line fee, percent Line of Credit Facility, Commitment Fee Percentage Share-Based Compensation Share-based Payment Arrangement [Policy Text Block] American Multi Cinema Acquisition Of Carmike Cinemas Inc American Multi Cinema Acquisition Of Carmike Cinemas Inc [Member] American Multi Cinema acquisition of Carmike Cinemas Inc. Amendments to Credit Agreement [Axis] Amendments to Credit Agreement [Axis] Amendments to Credit Agreement Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Advertising Cost, Policy, Expensed Advertising Cost [Policy Text Block] Advertising Cost [Policy Text Block] Long Term U.S. Agency Bonds Long Term U.S. Agency Bonds [Member] Long Term U.S. Agency Bonds OtherCFfromInvestingActivities OtherCFfromInvestingActivities OtherCFfromInvestingActivities AMC and Cinemark American Multi Cinema Inc And Cinemark Holdings Inc [Member] American Multi-Cinema, Inc. and Cinemark Holdings, Inc. Reduction in Valuation Allowance from Investment in NCM LLC Deferred Tax Asset Reduction in Valuation Allowance from Investment in NCM LLC Deferred Tax Asset Reduction in Valuation Allowance from Investment in NCM LLC Deferred Tax Asset Payments for (Proceeds from) Policy Loans Payments for (Proceeds from) Policy Loans Provision for bad debt SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense Consolidation Items [Axis] Consolidation Items [Axis] Valuation allowance reversed Valuation Allowances And Reserves Charged And Reversed To Other Accounts Valuation allowances and reserves charged and reversed to other accounts. Schedule of Marketable Securities Available-for-sale Securities [Table Text Block] National and regional advertising revenue National Advertising Revenue [Member] National advertising revenue. Receivables, net of allowance of $2.3 and $6.2, respectively Total Accounts Receivable, after Allowance for Credit Loss, Current Other Deferred Tax Assets, Other Deferred Tax Assets, Valuation Allowance, Net Deferred Tax Assets, Valuation Allowance, Net Deferred Tax Assets, Valuation Allowance, Net Net cash provided by (used in) financing activities Net Cash Provided by (Used in) Financing Activities, Continuing Operations Adjustments to Additional Paid in Capital, Other Decrease within activity of APIC Adjustments to Additional Paid in Capital, Other Debt Instrument, Redemption, Period Debt Instrument, Redemption, Period [Domain] Operating Lease, Lease Income, Lease Payments Operating Lease, Lease Income, Lease Payments Dividends payable, date to be paid Dividends Payable, Date to be Paid Dividends payable, date declared Dividends Payable, Date Declared Tax Year 2020 Tax Year 2020 [Member] Document Transition Report Document Transition Report Debt Instrument, Redemption, Period Debt Instrument, Redemption, Period [Axis] NCM LLC equity issued for purchase of intangible asset Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Issuance Of Equity For Purchase Of Intangible Asset Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Issuance Of Equity For Purchase Of Intangible Asset NON-OPERATING EXPENSES: Nonoperating Income (Expense) [Abstract] Significant Other Observable Inputs (Level 2) [Member] Fair Value, Inputs, Level 2 [Member] Senior Secured Financial Covenant Ratio Senior Secured Financial Covenant Ratio to Make Distributions Senior Secured Financial Covenant Leverage Ratio Administrative Cost General and Administrative Expense [Member] Equity-Based Arrangements, Individual Contracts, Type of Deferred Compensation [Axis] Equity-Based Arrangements, Individual Contracts, Type of Deferred Compensation [Axis] Financing Receivable, after Allowance for Credit Loss, Current Current portion of notes receivable - founding members Financing Receivable, after Allowance for Credit Loss, Current Subsequent Events [Line Items] Subsequent Event [Line Items] Short Term Municipal Bonds Short Term Municipal Bonds [Member] Short Term Municipal Bonds Negative Distributions Made to Limited Liability Company Negative Distributions Made to Limited Liability Company Negative Distributions Made to Limited Liability Company Options, Vested and Expected to Vest (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Credit Facility Credit Facility [Domain] Basic (in usd per share) (Loss) Earnings per NCM, Inc. share, basic Earnings Per Share, Basic Write Off of Equipment Write Off of Equipment Write Off of Equipment Unrecognized tax benefits Unrecognized Tax Benefits that Would Impact Effective Tax Rate (Gain) loss on re-measurement of the payable to founding    members under the TRA Gain on re-measurement of the payable to founding members under the TRA Gain (Loss) On Re Measurement Of Payable To Founding Members Under Tax Sharing Agreement Gain (loss) on re-measurement of payable to founding members under tax sharing agreement. Entity File Number Entity File Number Options, Expired (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period Long-term notes receivable, net of current portion - founding members Long-term portion of note receivable - founding members Financing Receivable, after Allowance for Credit Loss, Noncurrent Operating Lease, Weighted Average Remaining Lease Term Operating Lease, Weighted Average Remaining Lease Term Additions Finite-lived Intangible Assets Acquired Schedule of Other Assets Schedule of Cost Method Investments [Table Text Block] CASH FLOWS FROM OPERATING ACTIVITIES: Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Income attributable to NCM, Inc. Income Tax Reconciliation Income Tax Expense Excluding Minority Interest Income Tax Reconciliation Income Tax Expense Excluding Minority Interest Recognized share-based compensation expense Total share-based compensation costs Share-based Payment Arrangement, Expense Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Document Annual Report Document Annual Report Commercial Paper Commercial Paper [Member] Tax effect measurement extension period Tax Cuts And Jobs Act Of2017 Measurement Maximum Extension Period Tax cuts and jobs act of 2017 measurement maximum extension period. Income tax benefit from share-based compensation Share-based Payment Arrangement, Expense, Tax Benefit Schedule of Receivables Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Retirement Benefits [Abstract] Retirement Benefits [Abstract] Receivable Receivable [Domain] Subsequent Event [Table] Subsequent Event [Table] Share-based compensation issued, shares Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Noncontrolling interests Stockholders' Equity Attributable to Noncontrolling Interest Weighted average grant-date fair value, Granted (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Estimated useful life description Property, Plant and Equipment, Estimated Useful Lives Short-term debt Short-term Debt Debt Issuance Costs Debt, Policy [Policy Text Block] Valuation Allowance by Deferred Tax Asset [Axis] Valuation Allowance by Deferred Tax Asset [Axis] Outstanding Credit Facility Waiver Limit Outstanding Credit Facility Waiver Limit Outstanding Credit Facility Waiver Limit Income Taxes [Table] Income Taxes [Table] Income Taxes [Table] Receivables, net Increase (Decrease) in Accounts Receivable Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Concentration Risk Type Concentration Risk Type [Domain] TOTAL LIABILITIES AND EQUITY/DEFICIT TOTAL LIABILITIES AND EQUITY/DEFICIT Liabilities and Equity Accounting Standards Update 2014-09 Accounting Standards Update 2014-09 [Member] Income Taxes Income Tax Disclosure [Text Block] Total non-current liabilities Liabilities, Noncurrent Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Operating Lease, Cost Operating Lease, Cost Reductions based on the lapse of applicable statute of limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Administrative and other costs General and Administrative Expense Shares excluded from the calculation of diluted weighted average shares Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Total current income tax (benefit)/expense Current Income Tax Expense (Benefit) Increase in Income Tax Expense caused by Valuation Allowance Increase in Income Tax Expense due to Increase in Valuation Allowance Increase in Income Tax Expense due to Increase in Valuation Allowance Other Other Noncash Income (Expense) Weighted average remaining life Finite-Lived Intangible Asset, Useful Life Equity Component [Domain] Equity Component [Domain] AMC American Multi Cinema Inc [Member] American Multi-Cinema, Inc. Operating loss carryforward, expiration date Operating Loss Carryforwards, Expiration Date Retained Earnings RAAP Adjustment 2016-13 [Member] Retained Earnings RAAP Adjustment 2016-13 [Member] Retained Earnings RAAP Adjustment 2016-13 Property and equipment, net of accumulated depreciation of $77.7 and $70.7, respectively Net book value Total property and equipment Property, Plant and Equipment, Net Covenant During Waiver Min [Member] Covenant During Waiver Min [Member] Covenant During Waiver Min Entity Tax Identification Number Entity Tax Identification Number Share-Based Compensation Share-based Payment Arrangement [Text Block] Accounting Policies [Line Items] Accounting Policies [Line Items] Accounting policies. NET (LOSS) INCOME ATTRIBUTABLE TO NCM, INC. Net (loss) income attributable to NCM, Inc. (Loss) Net income attributable to NCM, Inc. Net Income (Loss) Attributable to Parent Retained Earnings Adjustment 2016-13 [Member] Retained Earnings Adjustment 2016-13 [Member] Retained Earnings Adjustment 2016-13 Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] LIBOR [Member] London Interbank Offered Rate (LIBOR) [Member] NCM, Inc. investment in NCM LLC Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Purchase of Interest by Parent Reduction in net deferred tax asset Tax Cuts And Jobs Act Change In Tax Rate Reduction Of Net Deferred Tax Assets Tax cuts and jobs act, change in tax rate, reduction of net deferred tax assets, Current Fiscal Year End Date Current Fiscal Year End Date OPERATING EXPENSES: Operating Expenses [Abstract] Credit Agreement Second Amendment Credit Agreement Second Amendment [Member] Credit Agreement Second Amendment Senior unsecured notes due 2026 Senior Unsecured Notes Due Two Zero Two Six [Member] Senior unsecured notes due two zero two six. Leasing Arrangement [Member] Leasing Arrangement [Member] RelatedPartyTRAPayment,Regal RelatedPartyTRAPayment,Regal RelatedPartyTRAPayment,Regal Number of NCM LLC common units converted to NCM Inc.common stock Number Of Common Units Converted To Common Stock Number of common units converted to common stock. ImputedInterestFutureLeasePayments ImputedInterestFutureLeasePayments ImputedInterestFutureLeasePayments Finite-Lived Intangible Assets, Costs Incured to Renew o Extend, Gross Capitalized Implementation Costs Capitalized Implementation Costs Non-cash (gain) loss on re-measurement of the payable to founding members under the TRA Non Cash Gain Loss On Re Measurement Of Payable To Founding Members Under Tax Sharing Agreement Non-cash gain (loss) on re-measurement of payable to founding members under tax sharing agreement. Redemption Premium Redemption Premium Common membership units surrendered (n shares) Common Membership Units Surrendered Due To Transferred Theaters Common membership units surrendered due to transferred theaters. Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Supplemental disclosure of cash flow information: Supplemental Cash Flow Information [Abstract] Cash distributions from non-consolidated entities Cash distributions received from non-consolidated entities Cash Distributions From Non Consolidated Entities Cash distributions from non-consolidated entities. Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Property, Plant and Equipment, Type Long-Lived Tangible Asset [Domain] SEC Schedule, 12-09, Allowance, Credit Loss [Member] SEC Schedule, 12-09, Allowance, Credit Loss [Member] Summary of Property and Equipment Property, Plant and Equipment [Table Text Block] US Treasury Securities US Treasury Securities [Member] Remaining borrowing capacity of credit facility Line of Credit Facility, Remaining Borrowing Capacity Issuance of shares, shares Stock Issued During Period, Shares, New Issues Gross carrying amount, beginning balance Gross carrying amount, ending balance Finite-Lived Intangible Assets, Gross Senior Secured Credit Facility [Member] Senior Secured Credit Facility [Member] Senior secured credit facility. Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Less: Accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Change from net (loss) income attributable to NCM, Inc. and transfers from noncontrolling interests Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Change Due to Net Income Attributable to Parent and Effects of Changes, Net Related Party Transactions [Abstract] Related Party Transactions [Abstract] Amortized Cost Basis Available-for-sale Securities, Amortized Cost Basis Summary of Restricted Stock Awards and Restricted Stock Units Schedule of Nonvested Share Activity [Table Text Block] Senior Notes Due Two Zero Two Two [Member] Senior Notes Due Two Zero Two Two [Member] Senior notes due two zero two two. Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Other Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Percentage of increase in payment per theatre patron Percentage Of Increase In Payment Per Theater Patron Percentage of increase in payment per theater patron. Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Basis spread on variable rate, percent Debt Instrument, Basis Spread on Variable Rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Weighted average exercise price, Forfeited (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Ownership [Axis] Ownership [Axis] Document Information [Line Items] Document Information [Line Items] Blended state and federal tax rate Effective Income Tax Rate Reconciliation Blended State And Federal Income Taxes Effective income tax rate reconciliation blended state and federal income taxes. Schedule of Minimum Lease Payments Under Noncancelable Operating Leases Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Carrying Value [Member] Reported Value Measurement [Member] Plan Name Plan Name [Domain] Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Cash dividends declared Dividends Payable Ownership percentage Equity Method Investment, Ownership Percentage Revenue from Contracts with Customers Revenue from Contract with Customer [Text Block] Income tax expense Consolidated net income, tax Total income tax provision Income Tax Expense (Benefit) Common membership units surrendered due to required theater transfer (in shares) Common Membership Units Surrendered Due To Required Theater Transfer Common membership units surrendered due to required theater transfer. 2022 Operating Leases, Future Minimum Payments, Due in Five Years Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Long-lived Assets Property, Plant and Equipment, Policy [Policy Text Block] Schedule of Annual Maturities on Credit Facility and Senior Notes Schedule of Maturities of Long-term Debt [Table Text Block] Local Phone Number Local Phone Number Acquisition of a business Payments to Acquire Businesses, Gross Intrinsic value of options exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Reduction to Deferred Tax Asset Reduction to Payable to Founding Members Reduction to Payable to Founding Members Founding member integration payments and other encumbered theater payments Proceeds From Integration And Other Encumbered Theater Payments Made By Affiliates Proceeds From Integration And Other Encumbered Theater Payments Made By Affiliates Payments received from related parties for their acquired theatres that are subject to an existing on-screen advertising contract. Outstanding Balance Debt Instrument, carrying value Long-term Debt, Gross Related Party Transaction [Domain] Related Party Transaction [Domain] Valuation and Qualifying Accounts SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Borrowing amount of credit facility Line of Credit Facility, Maximum Borrowing Capacity Award Type [Axis] Award Type [Axis] Weighted Average Grant-Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] NCM Inc. [Member] National Cine Media Inc [Member] National CineMedia, Inc. Amortization of debt issuance costs Amortization of debt issuance costs Amortization of Debt Issuance Costs Retained Earnings (Distribution in Excess of Earnings) Retained Earnings Retained Earnings [Member] Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Measurement Basis Measurement Basis [Axis] Short-term Debt, Type Short-term Debt, Type [Domain] Weighted average remaining contractual life, Outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Equity Award [Domain] Award Type [Domain] Liabilities recorded for related party obligations Guarantor Obligations, Current Carrying Value NON-CURRENT LIABILITIES: Liabilities, Noncurrent [Abstract] Weighted average exercise price, Exercisable (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Reduction in deferred tax assets Decrease In Deferred Tax Assets Decrease in deferred tax assets. Fair value of cost method investment Cost Method Investments, Fair Value Disclosure Property and Equipment Property, Plant and Equipment Disclosure [Text Block] Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Dividend payments during period upon vesting of stock units Dividend Payments During Period Upon Vesting Of Stock Units Dividend payments during period upon vesting of stock units. Amounts due to founding members, net Increase (Decrease) in Due to Related Parties, Current Theater access fees and revenue share to founding members (including fees to related parties of $16.0 and $56.6, respectively) Theater Access Fees and revenue share Theater Access Fees and revenue share Earnings Per Share Earnings Per Share [Text Block] Accrued integration and other encumbered theater payments from founding members (including accrued payments due from related parties of $0.0 and $0.1, respectively) Accrued Integration And Other Encumbered Theater Payments Due From Founding Members Accrued Integration And Other Encumbered Theater Payments Due From Founding Members Accrued integration and other encumbered theater payments due from founding members. New contract liabilities Contract with Customer, Liability, New Contract Liabilities Contract with Customer, Liability, New Contract Liabilities CURRENT LIABILITIES: Liabilities, Current [Abstract] U.S. federal statutory rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent CASH FLOWS FROM FINANCING ACTIVITIES: Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Vested shares withheld to cover tax obligations Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation AC JV, LLC [Member] A C J V L L C [Member] AC JV, LLC. Weighted average exercise price, Vested and Expected to Vest (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Accrued dividend Accrued Dividends Accrued dividends.