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Additional paid in capital CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Subsequent Event Type [Domain] Deconsolidation, Equity Effect, Amount Deconsolidation, Equity Effect, Amount Deconsolidation, Equity Effect, Amount Deconsolidation of affiliate Purchase of a business Payments to Purchase of Businesses Payments to Purchase of Businesses Purchase of a business Business Combination, Consideration Transferred, Tangible and Intangible Assets, Excluding Cash Contingent consideration Shares excluded from the calculation of diluted weighted average shares Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Number of shares, repurchased Stock Repurchased and Retired During Period, Shares Purchases of NCM, Inc.'s common stock, shares Number Of Significant Contract With A Customer Number of significant contract with a customer. Number of significant contracts with customer Common stock, par value (in usd per share) Common Stock, Par or Stated Value Per Share Type of Adoption [Domain] Accounting Standards Update [Domain] Membership units exchangeable into common stock ratio Membership Units Conversion Ratio Membership units conversion ratio. Vesting period 1 Share-Based Payment Arrangement, Tranche One [Member] American Multi-Cinema, Inc. and Cinemark Holdings, Inc. American Multi Cinema Inc And Cinemark Holdings Inc [Member] AMC and Cinemark AMC Noncontrolling Interest, Increase from Subsidiary Equity Issuance NCM LLC equity issued for purchase of an intangible asset Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Weighted average remaining contractual life, Outstanding Deconsolidation, Gain (Loss), Amount Gain on deconsolidation of affiliate Gain on deconsolidation of affiliate Expense for early lease termination fee Gain (Loss) on Termination of Lease Document Financial Statement Error Correction [Flag] Document Financial Statement Error Correction [Flag] Amounts due to ESA Parties, net DueToFoundingMembersCurrent DueToFoundingMembersCurrent Debt Disclosure [Abstract] Debt Disclosure [Abstract] Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Debt Issuance Cost Non-current Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Debt Issuance Cost Non-current Debt issuance costs, net Accrued Liabilities, Current, Total Accrued expenses Accrued Liabilities, Current Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Ownership [Domain] Current Fiscal Year End Date Current Fiscal Year End Date Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Business Combination, Intangible Asset, Acquired, Finite-Lived [Table Text Block] Summary of Intangible Assets Acquired OHIO Ohio Municipalities Business Combination, Recognized Asset Acquired, Other Asset, Noncurrent Other assets Customer Relationships Customer Relationships [Member] Entity Address, State or Province Entity Address, State or Province Effective Income Tax Rate Reconciliation, Projected Executive Compensation Limitations, Percent Effective income tax rate reconciliation, projected executive compensation limitations, percent. Projected executive compensation limitations, percent Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Number of Restricted Stock Units Non-vested, Ending balance (in shares) Number of Restricted Stock Units, Outstanding Number of Restricted Stock Units Non-vested, beginning balance (in shares) Investment, Name Investment, Name [Domain] Business Combination [Table Text Block] Summary of Consideration Transferred to Acquire Spotlight Debt Issuance Costs, Gross Debt issuance costs, gross Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Comprehensive Income (Loss), Net of Tax, Attributable to Parent COMPREHENSIVE (LOSS) INCOME ATTRIBUTABLE TO NCM, INC. Debt issuance costs Debt Issuance Costs, Capitalized During Period Debt Issuance Costs, Capitalized During Period Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Add: Dilutive effect of stock options, restricted stock, and exchangeable NCM LLC common membership units (in shares) AMC American Multi Cinema Inc [Member] American Multi-Cinema, Inc. American Multi Cinema Inc [Member] Vested shares withheld to cover tax obligations Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Marketable Securities, Current Short-term marketable securities Total marketable securities Noncontrolling interests Equity, Attributable to Noncontrolling Interest Line of credit facility, frequency of commitment fee payment Line of Credit Facility, Frequency of Commitment Fee Payment Weighted Average Term, ESA and Affiliate Weighted Average Term, ESA and Affiliate Weighted Average Term, ESA and Affiliate Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount Domestic state and local income taxes, net of federal effect Schedule of Share-Based Compensation Costs Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] 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. Non-cash (gain) loss on re-measurement of the TRA payable Customer with revenue in excess of ten percent of Accounts Receivable Customer with revenue in excess of ten percent of Accounts Receivable Customer with revenue in excess of ten percent of Accounts Receivable Schedule of Components of Deferred Tax Assets Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Performance Shares Performance Shares [Member] Performance-based Restricted Stock Units Tax Year 2023 Tax Year 2023 [Member] Subsequent Event [Member] Subsequent Event Debt Issuance Costs, Capitalized During Deconsolidation Debt Issuance Costs, Capitalized During Deconsolidation Debt issuance costs, capitalized during deconsolidation. Marketable Securities Marketable Securities, Policy [Policy Text Block] Digital Product Development [Member] Digital Product Development. Digital Product Development Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Abstract] Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized Additional common stock available for issuance Other assets Other Assets, Noncurrent Percentage Of Increase in Payment Per Theater Patron - National CineMedia LLC Percentage Of Increase in Payment Per Theater Patron - National CineMedia LLC Percentage of increase in payment per theater patron Aggregate Fair Value - Short term marketable securities Debt Securities, Available-for-Sale, Current Short-term marketable securities Thereafter Lessee Operating Lease Liability Payments Due After Year Four Lessee operating lease liability payments due after year four. Antidilutive Securities Antidilutive Securities [Axis] Business Combination, Recognized Asset Acquired, Prepaid Expense and Other Asset, Current Prepaid expenses and other current assets Common Membership Units Issued And Cancelled Common Membership Units Issued And Cancelled Common membership units issued and cancelled Increase in Other Investments due to Cash Investment Increase in other investments due to cash investment. Increase in other investments due to cash investment Options, Expired (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Expirations in Period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage Vesting percentage Tax Year 2025 [Member] Tax Year 2025 Intangible Assets Goodwill and Intangible Assets, Intangible Assets, Policy [Policy Text Block] Reduction Retained Earnings Accumulated Deficit Reduction retained earnings accumulated deficit. Reduction to retained earnings Income taxes paid, Foreign Income Tax Paid, Foreign, after Refund Received Income Tax Paid, Foreign, after Refund Received, Total Foreign Interest on borrowings Interest Expense, Debt State State and Local Jurisdiction [Member] Related Party Transaction [Axis] Customer [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Effective Income Tax Rate Reconciliation, Dividend Equivalents Paid On Share-based Compensation Effective income tax rate reconciliation, dividend equivalents paid on share-based compensation. Dividend equivalents paid on share-based compensation Cash [Member] Accrued Integration Payments Accrued integration payments. Accrued integration payments Thereafter Finite-Lived Intangible Asset, Expected Amortization, after Year Five Cash and Cash Equivalents [Domain] Other Commitments [Table] Other Commitments [Table] Business Combination, Consideration Transferred Total Accounting Policies [Line Items] Accounting Policies [Line Items] Accounting policies. Preferred Stock, Value, Issued Preferred stock, $0.01 par value; 10,000,000 shares authorized, 50 issued and outstanding, respectively Maturity date Debt Instrument, Maturity Date Repayment date Minimum Minimum [Member] Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Weighted Average Grant-Date Fair Value, Granted (in dollars per share) Financial Instrument [Axis] CURRENT ASSETS: Assets, Current [Abstract] Equity Method Investments [Table Text Block] Schedule of Other Investments Number of votes per common share Number Of Votes Per Common Share Number of votes per common share. 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. Total other investments Other investments Other Long-Term Investments Amortization Amortization of Intangible Assets Stock Issued During Period, Shares, New Issues Amortization expense Amortization of Intangible Assets Fair Value, Inputs, Level 3 [Member] Significant Unobservable Inputs (Level 3) Proceeds from Long-Term Lines of Credit Proceeds from revolving credit facility Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets Business Combination, Recognized Asset Acquired, Asset Total assets acquired Tax Period [Domain] Tax Period [Domain] Fair Values of the Company's Assets Fair Value, Assets Measured on Recurring Basis [Table Text Block] CURRENT LIABILITIES: Liabilities, Current [Abstract] Purchases of NCM, Inc.'s common stock Stock Repurchased and Retired During Period, Value Capital Expenditures Capital expenditures Capital expenditures. Related Party Transactions [Abstract] Related Party Transactions [Abstract] Shares, Outstanding Balance (in shares) Balance (in shares) Barter Transaction Revenue Barter Transaction Revenue [Member] Barter Transaction Revenue [Member] Operating Loss Carryforwards Total Accounts Receivable, after Allowance for Credit Loss, Current Receivables, net of allowance of $1.1 and $1.2, respectively Aggregate percentage of theater access fee paid Percentage Of Theater Access Fee Paid Percentage of theater access fee paid. 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. Income Tax Paid, by Individual Jurisdiction [Abstract] COMMITMENTS AND CONTINGENCIES (NOTE 13) Commitments and Contingencies Gain (Loss) On Remeasurement Gain (Loss) On Remeasurement Gain on re-measurement of NCM LLC Valuation Allowances and Reserves SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value 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) Percentage of actual tax benefit realized from the tax amortization Percentage of actual tax benefit realized from the tax amortization. Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Investments Non -current Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Investments Non -current Other investments Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture Share-based compensation issued, net of tax (in shares) Amounts Due to/from Founding Members Amounts Due To From Founding Members Policy [Text Block] Amounts due to from founding members. Accounts Receivable, Credit Loss Expense (Reversal) Accounts Receivable, Credit Loss Expense (Reversal) Allowance for Customer Receivables, Provision for credit losses General and Administrative Expense [Member] Administrative and Other Costs Common membership units issued, net (in shares) Common Membership Units Issued Net Of Units Surrendered Common membership units issued net of units surrendered. Operating Lease, Liability Total lease liability as of December 26, 2024 per the Consolidated Balance Sheet Total lease liability as of January 1, 2026 per the Consolidated Balance Sheet Auditor Firm ID AuditorFirmID Basis spread on variable rate, percent Debt Instrument, Basis Spread on Variable Rate Stockholders' Equity, Reverse Stock Split Stockholders' equity, reverse stock split Receivables Accounts Receivable, before Allowance for Credit Loss, Current Forecast [Member] Scenario Forecast Short-Term Debt Short-term debt, net of debt issuance costs of $0.0 and $0.0, respectively Contract value of receivables acquired Business Combination, Acquired Receivable, Purchased without Credit Deterioration, Gross Contractual Amount 2016 Equity Incentive Plan [Member] 2016 Equity Incentive Plan 2016 Equity Incentive Plan Transitional Agreements [Member] Transitional agreements. Transitional Agreements Concentration Risk Benchmark [Axis] CASH FLOWS FROM FINANCING ACTIVITIES: Cash Provided by (Used in) Financing Activity, Continuing Operation [Abstract] Long-Term Debt, Maturity, Year Two 2027 Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Change Due to Net Income Attributable to Parent and Effects of Changes, Net Change from net (loss) income attributable to NCM, Inc. and transfers from noncontrolling interests Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Change in the valuation allowance, percent NON-CURRENT LIABILITIES: Liabilities, Noncurrent [Abstract] Consolidated net (loss) income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest CONSOLIDATED NET (LOSS) INCOME Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent Cash, cash equivalents and restricted cash Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Other Item Other cash flows from operating activities, net Amount Increase In Payment Per Theater Patron Amount Increase In Payment Per Theater Patron Amount Increase In Payment Per Theater Patron Cybersecurity Risk Management Positions or Committees Responsible [Text Block] Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Scenario [Axis] Scenario [Axis] Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] Line Of Credit Facility, Percentage Of Revolving Commitment Line Of Credit Facility, Percentage Of Revolving Commitment Line of credit facility, percentage of revolving commitment Document Information [Line Items] Document Information [Line Items] Cash distributions declared to members Distribution Made to Limited Liability Company (LLC) Member, Cash Distributions Declared Schedule of Reconciliation of Provision for Income Taxes Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Property, Plant and Equipment, Type Long-Lived Tangible Asset [Domain] Expected term of options granted 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, Total Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block] Deferred Tax Assets, Net [Abstract] Deferred tax assets: Subsequent Events [Text Block] Subsequent Events Long-term Debt Long-Term Debt Debt instrument currently outstanding loan amount Total borrowings, net Income tax examination, year under examination Income Tax Examination, Year under Examination Interest Expense, Other Deferred Tax Asset, Interest Carryforward Business interest expense limitation Related Party Transactions Related Party Transactions Disclosure [Text Block] APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Share-based compensation expense/capitalized Variable Rate Variable Rate [Domain] Agreement to exchange on-screen advertising inventory Agreement To Exchange On Screen Advertising Inventory Agreement to exchange on screen advertising inventory. Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount Change in the valuation allowance Stockholders' Equity Attributable to Parent Equity, Attributable to Parent Total NCM, Inc. stockholders' equity Preferred stock, par value (in usd per share) Preferred Stock, Par or Stated Value Per Share Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Finite-Lived Intangible Assets, Period Increase (Decrease), Affiliate Payments Finite-Lived Intangible Assets, Period Increase (Decrease), Affiliate Payments Finite-Lived Intangible Assets, Period Increase (Decrease), Affiliate Payments Vesting period 2 Share-Based Payment Arrangement, Tranche Two [Member] Investment in AC JV, LLC Equity Method Investments Investet cash to acquire equity interests Estimates Use of Estimates, Policy [Policy Text Block] Summary of Restricted Stock Awards and Restricted Stock Units Schedule of Nonvested Share Activity [Table Text Block] Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment Property and equipment, net Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment, Total Long-Term Debt, Maturity, Year Five 2030 Leasehold Improvements [Member] Leasehold Improvements Selling and Marketing Costs Selling and Marketing Expense [Member] Fair Value Measurements Fair Value Disclosures [Text Block] Accrued Reserves Accrued Reserves Accrued reserves. Depreciation, Nonproduction Depreciation expense Noncontrolling Interest Noncontrolling Interest [Member] Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] Equity in earnings of non-consolidated entities Income (Loss) from Equity Method Investments Long-Term Debt, Maturity, Year Four 2029 Income Taxes [Table] Income Taxes [Table] Income Taxes [Table] Schedule of Mandatory Distributions to Members Distributions Made to Limited Liability Company (LLC) Member, by Distribution [Table Text Block] Plan Name Plan Name [Domain] Accumulated amortization integration and other encumbered theater payments during period. Accumulated Amortization Integration And Other Encumbered Theater Payments During Period Accumulated amortization integration and other encumbered theater payments during period One-time Grant One-time Grant [Member] One-time Grant 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] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Entity [Domain] Entity [Domain] Credit Facility Credit Facility [Axis] Costs of goods and services sold Cost of Product and Service Sold Network operating costs Cost of Product and Service Sold, Total Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Text Block] Current State and Local Tax Expense (Benefit) State Cybersecurity Risk Management Expertise of Management Responsible [Text Block] Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights Vesting rights description Regional Advertising Revenue [Member] Regional Advertising Revenue [Member] Regional Advertising Revenue [Member] Certificates of Deposit [Member] Short-term Certificates of Deposit Achievement of percentage in performance based restricted stock Achievement Of Percentage In Performance Based Restricted Stock Achievement of percentage in performance based restricted stock. Tax Period [Axis] Tax Period [Axis] Number of Theaters NCM Show is Presented Number of theaters NCM show is presented Number of theaters NCM show is presented Common membership units issued (in shares) Common Membership Units Issued Common membership units issued. Common membership units issued Business Combination, Recognized Liability Assumed, Liability [Abstract] Fair value of liabilities assumed: Related Party [Axis] Related Party, Type [Axis] Other Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Foreign Tax Jurisdiction [Member] Foreign Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Goodwill Amount Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Goodwill Amount. Goodwill Content segment second. Content Segment Second Content segment seconds Property, Plant and Equipment, Policy [Policy Text Block] Property and Equipment Number of Customers More than Ten Percentage of Revenue Number of customers more than ten percentage of revenue. Number of customers more than ten percentage of revenue Entity Address, City or Town Entity Address, City or Town Long Term Marketable Securities [Member] Long-term marketable securities. Long-term Marketable Securities Payment terms Revenue, Performance Obligation, Payment Terms Revenue, Performance Obligation, Payment Terms Contingent consideration Business Combination, Contingent Consideration, Liability Business Combination, Contingent Consideration, Liability, Total Federal And State Research And Experimentation Tax Credit [Member] Federal and state research and experimentation tax credit. Federal and State Research and Experimentation Tax Credit Carryforwards Number of Reportable Segments Number of reportable segment Removal of Cash and Cash Equivalents of Unconsolidated Affiliates Removal of Cash and Cash Equivalents of Unconsolidated Affiliates Removal of cash, cash equivalents and restricted cash of unconsolidated affiliate Removal of cash, cash equivalents and restricted cash of unconsolidated affiliate Line Of Credit Facility Prepayment Fee Percentage On Commitment Amount Line of credit facility, prepayment fee percentage on commitment amount. Prepayment fee percentage on commitment amount E S As And Affiliate Agreements [Member] ESAs and Affiliate Agreements. ESAs and Network Affiliate Agreements Security Exchange Name Security Exchange Name Credit Facility Credit Facility [Domain] Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] Debt Instrument, carrying value Long-Term Debt, Gross Outstanding borrowings Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Other, percent Property and equipment Property, Plant and Equipment, Gross Entity Bankruptcy Proceedings, Reporting Current Intangible Assets Intangible Assets Disclosure [Text Block] INCOME BEFORE INCOME TAXES Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest (LOSS) INCOME BEFORE INCOME TAXES 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 Concentration Risk Type [Domain] Debt Issuance Costs, Current, Net Debt issuance costs, current, net Effective Income Tax Rate Reconciliation Deemed Payment On Write Off Of Affiliate Assets Percent Effective income tax rate reconciliation deemed payment on write-off of affiliate assets percent. Deemed payment on write-off of affiliate assets, percent Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Granted Options, Granted (in shares) Options granted during the period Disposal Group, Including Discontinued Operation, Intangible Assets Disposals of Intangible Assets, Gross Disposals of Intangible Assets, Gross Antidilutive Securities, Name Antidilutive Securities, Name [Domain] Other investments Investment owned, at cost Investet cash to acquire equity interests Stockholders' Equity Note [Abstract] Stockholders' Equity Note [Abstract] Capitalized Implementation Costs Depreciation Capitalized Implementation Costs Depreciation Capitalized Implementation Costs Depreciation Subtotal Property Plant And Equipment Net Before Construction In Progress Property Plant And Equipment Net Before Construction In Progress Recently Adopted Accounting Pronouncements Recently Adopted Accounting Pronouncements Policy [Text Block] Recently adopted accounting pronouncements. Increase (Decrease) in Due to Related Parties Amounts due to ESA Parties, net Cash, cash equivalents and restricted cash at beginning of period Cash, cash equivalents and restricted cash at end of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Interest Paid, Excluding Capitalized Interest, Operating Activity Cash paid for interest Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table] Range [Domain] Range Statistical Measurement [Domain] AMC AMC [Member] AMC Deferred available cash distribution Deferred Available Cash Distribution Deferred available cash distribution. Total current assets Assets, Current Assets, Current Total share-based compensation costs Recognized share-based compensation expense Share-Based Payment Arrangement, Expense Accrued purchases of property and equipment Noncash or Part Noncash Acquisition, Fixed Assets Acquired Document Period End Date Document Period End Date Debt Instrument Covenant Leverage Ratio Debt instrument covenant leverage ratio. Leverage ratio Title and Position [Axis] Fair Value Hierarchy Fair Value Hierarchy and NAV [Domain] ICFR Auditor Attestation Flag ICFR Auditor Attestation Flag Options, Exercisable (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] TENNESSEE Tennessee Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Restricted Stock Units (RSUs) [Member] Restricted Stock Units (RSUs) Equity Interest Acquired, Percentage Equity Interest Acquired, Percentage Equity interest acquired, percentage Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Business Combination, Recognized Asset Acquired, Asset [Abstract] Fair value of assets acquired: Revenue Recognition Revenue [Policy Text Block] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Vesting [Axis] Class of Stock Class of Stock [Axis] Class of Stock [Axis] Current Income Tax Expense (Benefit) Total current income tax expense Tax Year 2024 [Member] Tax Year 2024 Share Repurchase Program, Period in Force Stock repurchase program, period SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] 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. Total liabilities Total liabilities Liabilities Payments to the ESA Parties under the tax receivable agreement Payments To Parties Under The Tax Receivable Agreement Payments to parties under the tax receivable agreement. Financial Instruments [Domain] Effective Income Tax Rate Reconciliation, Projected Executive Compensation Limitations, Amount Projected executive compensation limitations Effective income tax rate reconciliation, projected executive compensation limitations, amount. Income attributable to NCM, Inc. Income Tax Reconciliation Income Tax Expense Excluding Minority Interest Income Tax Reconciliation Income Tax Expense Excluding Minority Interest Valuation Allowance by Deferred Tax Asset [Axis] Valuation Allowance by Deferred Tax Asset [Axis] Time-based Restricted Stock Units Time-based Restricted Stock Units. Time-based Restricted Stock Units [Member] Operating Lease, Lease Income, Lease Payments Operating Lease, Lease Income, Lease Payments Lessee, Operating Lease, Liability, to be Paid, Year Two 2027 Restricted Cash Restricted cash Restricted Stock [Member] Restricted Stock Variable Rate Variable Rate [Axis] SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount, Beginning Balance SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount, Ending Balance SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount Gross carrying amount, beginning balance Gross carrying amount, ending balance Finite-Lived Intangible Assets, Gross Diluted (in shares) Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Entity File Number Entity File Number Payment of dividends Payments of Ordinary Dividends, Common Stock Gain on deconsolidation of affiliate Gain (loss) on deconsolidation of affiliate. Gain Loss on Deconsolidation of Affiliate Gain on deconsolidation of affiliate ASU 2023-07 Accounting Standards Update 2023-07 [Member] Deferred Federal, State and Local, Tax Expense (Benefit) [Abstract] Deferred: Two Thousand and Twenty Five AMC Agreement [Member] Two thousand and twenty five AMC agreement. 2025 AMC Agreement Accounts payable and accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities Prepaid Expense and Other Assets, Current Prepaid expenses and other current assets Number of Restricted Stock Units, Forfeited (in shares) Number of Restricted Stock Units, Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Business Combination, Recognized Liability Assumed, Other Liability, Current Other current liabilities Investments Investments [Domain] Deferred Tax Asset [Domain] Deferred Tax Asset [Domain] Debt issuance costs, net Debt Issuance Costs, Line of Credit Arrangements, Net Revenue Benchmark [Member] Revenue Scenario, Unspecified [Domain] Scenario [Domain] Secured Creditors Secured Creditors [Member] Secured Creditors Common stock available for issuance Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized Number of Operating Segments Number of operating segments National Cine Media Inc [Member] National CineMedia, Inc. National Cine Media Inc [Member] NCM Inc. Number of Designated Market Areas Advertising NCM Cinema Number of designated market areas advertising NCM cinema Number of designated market areas advertising NCM cinema Income Taxes [Line Items] Income Taxes [Line Items] Income Taxes [Line Items] Administrative and other costs General and Administrative Expense Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract] CASH FLOWS FROM OPERATING ACTIVITIES: Cash Provided by (Used in) Operating Activity, Continuing Operation [Abstract] Network Affiliate Additions Network Affiliate Additions [Member] Network Affiliate Additions. SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] Subsequent Event [Table] Business Combination, Pro Forma Information, Pro Forma Income (Loss), after Tax Net (Loss) Income Acquired business contributed earnings Theater Exhibition Fees Theater exhibition fees, Theater exhibition fees (including fees to related parties of $0.0, $0.0 and $16.5, respectively) Theater exhibition fees Other Deferred Tax Assets, Other Current: Current Federal, State and Local, Tax Expense (Benefit) [Abstract] Business Combination, Recognized Liability Assumed, Accounts Payable, Current Accounts payable Accounts payable Noncompetition Agreements Noncompetition Agreements [Member] Noncompetition agreements. Intangible assets, net of accumulated amortization Total intangible assets, net, beginning balance Total intangible assets, net, ending balance Finite-Lived Intangible Assets, Net Intangible assets, net of accum. amortization of $86.2 and $52.8, respectively CASH FLOWS FROM INVESTING ACTIVITIES: Cash Provided by (Used in) Investing Activity, Continuing Operation [Abstract] Current year change to enacted federal and state rate Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount Gain (Loss) on Extinguishment of Debt Gain (Loss) on Extinguishment of Debt, Total Loss on debt extinguishment 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 Estimated useful life Property, Plant and Equipment, Useful Life Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] Schedule of Minimum Lease Payments Under Noncancelable Operating Leases Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Contract with Customer, Liability, Current Contract with Customer, Liability, Current Contract with Customer, Liability, Current Deferred revenue Ownership [Axis] Ownership [Axis] Vesting period Share-based compensation, vesting period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities Business Combination, Recognized Liability Assumed, Liability Total liabilities assumed Total liabilities assumed Depreciation expense Depreciation Dividend equivalents paid on share-based compensation, percent Effective Income Tax Rate Reconciliation, Dividend Equivalents Paid On Share-based Compensation, Percent Effective income tax rate reconciliation, dividend equivalents paid on share-based compensation, percent. Lease term Lessee, Operating Lease, Term of Contract ACJV Cash Distributions ACJV Cash Distributions ACJV Cash Distributions Gain (Loss) On Reconsolidation Gain (Loss) On Reconsolidation Gain on reconsolidation of NCM LLC Business combination, gain upon the reconsolidation Common stock, shares outstanding (in shares) Balance, (in shares) Balance, (in shares) Common Stock, Shares, Outstanding Operating Lease, Liability, Current Short-term lease liability Changes in Equity Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Table Text Block] Remaining performance obligation Revenue, Remaining Performance Obligation, Amount Dividends [Domain] Cybersecurity Risk Management Processes Integrated [Flag] Document Transition Report Document Transition Report Payments to Acquire Additional Interest in Subsidiaries Payments to Acquire Additional Interest in Subsidiaries Payments to acquire capital contributions Schedule of Useful Lives Schedule Of Useful Lives Table [Text Block] Schedule of useful lives. Research and development expense Research and Development Expense Asset Impairment Charges Asset Impairment Charges Receivable Receivable [Domain] Payments for Repurchase of Common Stock Purchases of NCM, Inc.'s common stock Purchases of NCM, Inc.'s common stock Payments for repurchase of common stock Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Schedule of Components of Income Tax Expense Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Comprehensive income (loss), net of tax Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] 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] Spotlight Cinema Networks, LLC [Member] Spotlight cinema networks, LLC. Spotlight Cinema Networks Spotlight Current Federal Tax Expense (Benefit) Federal Issuance of shares, value Stock Issued During Period, Value, New Issues Issuance of shares Summary of Option Award Activity Share-Based Payment Arrangement, Option, Activity [Table Text Block] Agreement With Founding Members, Remaining Term Agreement With Founding Members, Remaining Term Agreement With Founding Members, Remaining Term 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. Business Combination, Contingent Consideration, Range of Outcomes, Maximum, Amount Undiscounted maximum amount of contingent consideration Income Tax Reconciliation Deemed Payment On Write Off Of Affiliate Assets Income Tax Reconciliation Deemed Payment On Write Off Of Affiliate Assets Deemed payment on write-off of affiliate assets Equity Equity [Text Block] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Earnings Per Share [Text Block] (Loss) Income Per Share Cybersecurity Risk Management Processes Integrated [Text Block] NET (LOSS) INCOME ATTRIBUTABLE TO NCM, INC. Net (loss) income attributable to NCM, Inc. (in millions) Intangible assets, period of extension Intangible Assets, Period of Extension Intangible assets, period of extension. Units of Partnership Interest, Cash Surrender Value Units of Partnership Interest, Cash Surrender Value Units of Partnership Interest, Cash Surrender Value Network Operating Costs Network Operating Costs [Member] Network operating costs. Operating Lease, Cost Operating lease cost Long Term Certificates of Deposit [Member] Long Term Certificates of Deposit Long Term Certificates of Deposit Impairment on Investment Impairment on Investment Impairment on investment Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate Dividend yield Proceeds from (Payment for) Other Financing Activity Other cash flows from financing activities Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] Accounts Receivable, Allowance for Credit Loss [Table Text Block] Schedule of Receivables Substantial Doubt about Going Concern Substantial Doubt about Going Concern [Text Block] ASSETS Assets [Abstract] Business Combination, Price of Acquisition, Expected Business Combination, Price of Acquisition, Expected Fair value of NCM LLC Fair value of NCM LLC Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Risk free interest rate Schedule of Fiscal Year Ends Schedule Of Fiscal Year Ends Table [Text Block] Schedule of fiscal year ends. Document Fiscal Year Focus Document Fiscal Year Focus Concentration Risk Benchmark [Domain] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Revenue from contract, payment due period from the customer Retirement Benefits [Abstract] Retirement Benefits [Abstract] Schedule of Reconciliation of Income Taxes Paid Schedule Of Income Tax Paid [TableTextBlock] Schedule of income tax paid. Accounts payable Accounts Payable, Current Fair value of awards vested Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested in Period, Fair Value Trade accounts Trade Accounts Receivable [Member] Decrease within activity of APIC Adjustments to Additional Paid in Capital, Other Income tax and other impacts of NCM LLC ownership changes Network Affiliates Network Affiliates [Member] Network Affiliates Contract with Customer, Asset and Liability Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Deferred Federal Income Tax Expense (Benefit) Federal Percentage of common membership units outstanding Limited Liability Company or Limited Partnership, Members or Limited Partners, Ownership Interest Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture Share-based compensation issued, net of tax Transaction Type [Axis] Finite-Lived Intangible Asset, Expected Amortization, Year One 2026 Fair Value Measurements Fair Value Measurement, Policy [Policy Text Block] Amounts due from ESA Parties Due From Founding Members, Current Due From Founding Members, Current Amounts due from founding members NCM, LLC. National Cine Media L L C [Member] National CineMedia, LLC. Lease not yet commenced, term of contract Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract Weighted Average Remaining Contractual Life (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest [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 Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Lessee, Operating Lease, Liability, to be Paid, Year One 2026 Total lease expense Operating Leases, Rent Expense Repayment of line of credit Repayments of Long-Term Lines of Credit Write off of Deferred Debt Issuance Cost Deferred Debt Issuance Cost, Writeoff Write off of extinguished debt issuance costs Affiliates Agreement, Term Affiliates Agreement, Term Affiliates agreement, term Loss on re-measurement of the payable under the tax receivable agreement 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. (Gain) loss on re-measurement of the payable under the tax receivable agreement Gain on re-measurement of the payable to founding members under the tax receivable agreement Decrease on re-measurement of the payable under the tax receivable agreement Members' Equity Members' Equity Business Combination, Recognized Liability Assumed, Deferred Revenue, Current Deferred revenue Deferred revenue Intangible Assets Affiliates Intangible Assets Affiliates [Member] Intangible Assets Affiliates Long-Term Line of Credit Long-Term Line of Credit, Total Outstanding balance Summary of Pro Forma Financial Information Business Combination, Pro Forma Information [Table Text Block] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Share-Based Payment Arrangement [Abstract] Unrecognized compensation expense related to non-vested options Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Total assets Assets, Fair Value Disclosure Assets Concentration Risk, Percentage Customer ten percent of revenue Effective Income Tax Rate Reconciliation, Excess Tax Deficiency On Share-based Compensation Effective Income Tax Rate Reconciliation, Excess Tax Deficiency On Share-based Compensation. Excess tax deficiency on share-based compensation pay Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Net cash (used in) provided by investing activities Market-Based Restricted Stock Units [Member] Market-based restricted stock units. Market-based Restricted Stock Units Title of 12(b) Security Title of 12(b) Security Revenue, Management Fee Revenue, Management Fee Management fee reimbursement Share-based compensation Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-Based Payment Arrangement, Amount Income Tax Paid, by Individual Jurisdiction [Table] 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 Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Weighted Average Grant-Date Fair Value, Forfeited (in dollars per share) Related Party [Domain] Related Party, Type [Domain] Thereafter Long-Term Debt, Maturity, after Year Five Income Taxes Income Tax Disclosure [Text Block] Customer Percentage of Accounts Receivable Customer Percentage of Accounts Receivable Customer Percentage of Accounts Receivable Executive compensation Effective Income Tax Rate Reconciliation, Executive Compensation, Amount Effective Income Tax Rate Reconciliation, Executive Compensation, Amount Intangible Assets ESA Intangible Assets ESA [Member] Intangible Assets ESA Document Information [Table] Document Information [Table] Other liabilities Other Liabilities, Noncurrent Business Combination, Achieved in Stages, Preacquisition Equity Interest in Acquiree, Remeasurement, Gain Gain on re-measurement of investment in NCM LLC Gain on re-measurement of investment in NCM LLC Legal Entity [Axis] Legal Entity [Axis] Changes in operating assets and liabilities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Summary of Property and Equipment Property, Plant and Equipment [Table Text Block] 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 Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Business Combination [Text Block] Business Combination Additional Paid in Capital (Deficit) Additional Paid In Capital (Deficit) Additional Paid-in Capital [Member] Software and development costs. Software And Development Costs [Member] Software And Development Costs Fair Value, Measurement Frequency Measurement Frequency [Domain] Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Stock repurchase program, authorized amount Share Repurchase Program, Authorized, Amount Income Statement Location Income Statement Location [Axis] Change in Accounting Principle, Accounting Standards Update, Adoption Date Trading Symbol Trading Symbol Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Property and Equipment Property, Plant and Equipment Disclosure [Text Block] Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Proceeds from term loan facilities Proceeds from Notes Payable Proceeds from Notes Payable, Total Business Combination Expected Working Capital Adjustments Business Combination Expected Working Capital Adjustments. Less: Expected working capital adjustments Subsequent Event Type [Axis] Summary of Intangible Asset's Activity Schedule of Finite-Lived Intangible Assets [Table Text Block] Accrued payroll and related expenses Employee-related Liabilities, Current Senior Secured Revolving Credit Facility 2025 [Member] Senior secured revolving credit facility 2025. 2025 Credit Facility Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Line of credit facility, unused capacity, commitment fee percentage Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term Expected term (in years) Fair Value, Recurring [Member] Fair Value, Measurements, Recurring Share Repurchase Program [Text Block] Share Repurchase Program Share repurchase program. Lessee, Operating Lease, Liability, to be Paid Total Revolving Credit Facility 2023 Revolving Credit Facility 2023 [Member] Revolving Credit Facility 2023 Lessee, Operating Lease, Liability, Undiscounted Excess Amount Less: Imputed interest on future lease payments Selling and marketing costs Selling and Marketing Expense Selling and Marketing Expense, Total Equity Components [Axis] Equity Components [Axis] Stock Options And Non Vested Restricted Stock [Member] Stock options and non-vested restricted stock. Stock Options And Non-Vested Restricted Stock Total Total non-operating expenses Nonoperating Income (Expense) Equity Component [Domain] Equity Component [Domain] 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. Schedule of Minimum Lease Payments Under Noncancelable Operating Leases Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Other State and Local Tax Jurisdiction, Other [Member] SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member] Valuation Allowance On Deferred Tax Assets Investments Investments, Total Investments Business Combination, Recognized Asset Acquired and Liability Assumed [Table Text Block] Summary of Assets Acquired and Liablilities Assumed Bankruptcy Filing, Deconsolidation and Reconsolidation of NCM LLC Bankruptcy Filing, Deconsolidation and Reconsolidation of NCM LLC [Policy Text Block] Bankruptcy filing, deconsolidation and reconsolidation of NCM LLC. Document Annual Report Document Annual Report Business Acquisition [Axis] Business Combination [Axis] Provision to return adjustment Effective Income Tax Rate Reconciliation Provision To Return Adjustment Effective income tax rate reconciliation provision to return adjustment. Membership Interest Purchase Agreement [Member] Membership interest purchase agreement. MIPA Customer [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Maximum Maximum [Member] Dividends payable, date to be paid Dividends Payable, Date to be Paid Liabilities, Fair Value Disclosure Liabilities, Fair Value Disclosure, Total Liabilities Range [Axis] Range Statistical Measurement [Axis] Accumulated amortization, beginning balance Accumulated amortization, ending balance Finite-Lived Intangible Assets, Accumulated Amortization Accumulated amortization, intangible assets Management Fee Reimbursement Management Fee Reimbursement [Member] Management Fee Reimbursement Common Stock, Value, Issued Common stock, $0.01 par value; 260,000,000 shares authorized, 93,353,604 and 95,755,491 issued and outstanding, respectively Ronnie Ng [Member] Ronnie Ng. Ronnie Ng Line of Credit Facility, Expiration Date Maturity date Financing Receivable, Allowance for Credit Loss [Table] Financing Receivable, Allowance for Credit Loss [Table] Dividends [Axis] Other Other Receivable [Member] Other receivable. Consolidation, Policy [Policy Text Block] Consolidation Total equity/(deficit) Balance Balance Equity, Including Portion Attributable to Noncontrolling Interest Total equity Equipment [Member] Equipment Related Party Transaction, Due from (to) Related Party Related Party Transaction, Amounts of Transaction Related party transaction, amounts of transaction Related party transaction, investment cash contributed Deferred Tax Assets, Operating Loss Carryforwards Net operating losses Deferred Tax Assets, Operating Loss Carryforwards Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block] Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent Domestic state and local income taxes, net of federal effect, percent Amortization of debt issuance costs Amortization of debt issuance costs Amortization of Debt Issuance Costs Transfers Related To Bankruptcy Settlement Transfers Related To Bankruptcy Settlement [Member] Transfers Related To Bankruptcy Settlement 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. Effective Income Tax Rate Reconciliation, Cancellation of Debt Effective Income Tax Rate Reconciliation, Cancellation of Debt Effective Income Tax Rate Reconciliation, Cancellation of Debt Cancellation of debt income attributable to NCM LLC Summary of Estimated Aggregate Amortization Expense Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Entity Public Float Entity Public Float Operating Costs Operating Costs Policy [Text Block] Operating costs. Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate Expected volatility Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized 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. Operating expenses Total Costs and Expenses Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class Finite-Lived Intangible Assets by Major Class [Axis] Document And Entity Information [Abstract] Document And Entity Information [Abstract] Document And Entity Information [Abstract] Schedule of Outstanding Debt Schedule of Debt [Table Text Block] Debt instrument, floor rate Debt Instrument Floor Rate Debt instrument, floor rate. Accounting Policies [Table] Accounting Policies [Table] Accounting policies. Related Party Transaction [Line Items] Related Party Transaction [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Revenue from Contracts with Customers Revenue from Contract with Customer [Text Block] Business Combination [Table] Entity Registrant Name Entity Registrant Name Borrowings Debt Disclosure [Text Block] Restricted Stock and Restricted Stock Units Restricted Stock And Restricted Stock Units [Member] Restricted stock and restricted stock units. Entity Voluntary Filers Entity Voluntary Filers Customer Concentration Risk [Member] Customer Concentration Risk Finite-Lived Intangible Asset, Expected Amortization, Year Two 2027 Contract with Customer, Liability, Change in Timeframe, Performance Obligation Satisfied, Revenue Recognized Contract with Customer, Liability, Change in Timeframe, Performance Obligation Satisfied, Revenue Recognized Other non-operating income, net Other Nonoperating Income (Expense) State Deferred State and Local Income Tax Expense (Benefit) Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Cash redemption of NCM LLC common membership units Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Cash redemption of NCM LLC common membership units. Cash redemption of NCM LLC common membership units Subsequent Events [Abstract] SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] Cybersecurity Risk Management Positions or Committees Responsible [Flag] Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] Finite-Lived Intangible Asset, Expected Amortization, Year Three 2028 Consolidated net income, tax Income tax expense Income Tax Expense (Benefit) Total income tax provision on Consolidated Statements of Operation Measurement Frequency Measurement Frequency [Axis] Other Investments Other Investments, Total Other investments Valuation Allowance Reversed Valuation Allowance Reversed [Member] Valuation Allowance Reversed Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners Subsidiary, Ownership Percentage, Noncontrolling Owner Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Beverage Concessionaire Beverage Concessionaire [Member] Beverage Concessionaire Restricted cash policy. Restricted Cash Policy [Policy Text Block] Restricted Cash Accounts Receivable, Allowance for Credit Loss, Writeoff Accounts Receivable, Allowance for Credit Loss, Writeoff Allowance for Customer Receivables, Write-offs, net Deferred tax assets recognized Investment in consolidated subsidiary NCM LLC Deferred Tax Assets, Investment in Subsidiaries Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment Other cash flows from investing activities, net Payment for (Proceeds from) Other Investing Activity Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Number of Restricted Stock Units, Granted (in shares) Number of restricted stock units, granted Effective Income Tax Rate Reconciliation, Bankruptcy Effects Effective Income Tax Rate Reconciliation, Bankruptcy Effects Effective Income Tax Rate Reconciliation, Bankruptcy Effects Effects of NCM LLC Bankruptcy TOTAL ASSETS TOTAL ASSETS Assets Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Income Tax Paid, State and Local, after Refund Received Income Tax Paid, State and Local, after Refund Received, Total Income taxes paid, US state and local US state and local Negative Distributions Made to Limited Liability Company Negative Distributions Made to Limited Liability Company Negative distributions made to limited liability company Weighted average remaining contractual life, Exercisable Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Income Statement [Abstract] Income Statement [Abstract] Effective Income Tax Rate Reconciliation Compensation Limitations Deferred Tax Asset Write Off Effective income tax rate reconciliation compensation limitations deferred tax asset write off Compensation limitations deferred tax asset write off Share-Based Compensation Share-Based Payment Arrangement [Policy Text Block] Total deferred income tax expense Deferred Income Tax Expense (Benefit) Datasets [Member] Datasets. Datasets Number of theaters advertising NCM cinema Number of Theaters Advertising NCM's Cinema Number of theaters advertising NCM cinema. Issuance of shares, shares Stock Issued During Period, Shares, New Issues Issued shares to secured creditors, shares Short Term Marketable Securities [Member] Short-term marketable securities. Short-term Marketable Securities Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Number of Restricted Stock Units, Vested (in shares) Earnings Per Share, Diluted [Abstract] (Loss) income per NCM, Inc. share: Business Combination, Recognized Liability Assumed, Long-Term Debt, Current Long-term debt (Loss) Earnings per NCM, Inc. share, diluted Diluted (in usd per share) Earnings Per Share, Diluted 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. Finite-Lived Intangible Asset, Expected Amortization, Year Five 2030 Title and Position [Domain] Property, Plant, and Equipment, Useful Life, Term, Description [Extensible Enumeration] City Area Code City Area Code Business Combination, Pro Forma Information, Pro Forma Revenue Revenue Acquired business contributed revenue Amount of contractual cash flows not expected to be collected Business Combination, Acquired Receivable, Purchased without Credit Deterioration, Contractual Cash Flow, Estimated Uncollectible Auditor Name Auditor Name Noncash or Part Noncash Acquisition, Investments Acquired Cost method investment obtained in exchange for advertising inventory Income Tax Reconciliation, Income Tax Expense Excluding Minority Interest, Percent Income tax reconciliation, income tax expense excluding minority interest, percent. Income attributable to NCM, Inc, percent Amortized Cost Basis. Amortized Cost Basis Member Amortized Cost Basis Borrowing amount of credit facility Line of Credit Facility, Maximum Borrowing Capacity Business Combination [Line Items] Regal Regal Entertainment Group [Member] Regal entertainment group. Regal Entertainment Group [Member] Variable Lease, Cost Variable lease cost Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accrued Expenses Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accrued Expenses Accrued expenses Accrued expenses Purchase of an intangible asset with NCM LLC equity Noncash or Part Noncash Acquisition, Intangible Assets Acquired Operating Lease, Weighted Average Remaining Lease Term Weighted average remaining lease term Guarantee obligations amount paid Guarantee Obligations Amount Paid Guarantee obligations amount paid. Lease, Cost Total lease cost Business Combination, Acquiree's Revenue since Acquisition Date, Actual Acquired business contributed revenue Recently Issued Accounting Pronouncements Recently Issued Accounting Pronouncements Policy [Text Block] Recently issued accounting pronouncements. Letter of Credit [Member] Letter of Credit Proceeds from Equity Method Investment, Distribution Proceeds received from equity method investment Debt Instrument Incremental Increase In Interest Rate Due To Default Debt instrument incremental increase in interest rate due to default. Additional interest rate upon event of default Net book value Total property and equipment Property, Plant and Equipment, Net Property and equipment, net of accum. depreciation of $8.4 and $4.8, respectively Operating Income (Loss) OPERATING LOSS Retained Earnings Retained Earnings (Distributions in Excess of Earnings) Retained Earnings [Member] Cash and Cash Equivalents [Axis] Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items] Fair Value, Separate Account Investment [Line Items] Transaction [Domain] Total non-current assets Assets, Noncurrent Assets, Noncurrent Non-cash share-based compensation Share-Based Payment Arrangement, Noncash Expense Share Based Compensation Arrangement By Share Based Payment Expected Term in Excess of Contractual Term Share based compensation arrangement by share based payment expected term in excess of contractual term. Expected term in excess of contractual term Impairment on Investment Remaining Balance Impairment on Investment Remaining Balance Impairment on investment remaining balance Total non-current liabilities Liabilities, Noncurrent Liabilities, Noncurrent Term of advertising services Term Of Advertising Services Term of advertising services. Operating Lease, Weighted Average Discount Rate, Percent Weighted average discount rate Operating Lease, Liability, Noncurrent Long-term lease liabilities Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] Fair Value, Inputs, Level 1 [Member] Class of Stock [Line Items] Class of Stock [Line Items] Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Net cash used in financing activities Cinemark and Regal Cinemark and Regal [Member] Cinemark and Regal [Member] Cinemark and Regal Lease Cost Lease, Cost [Table Text Block] Excess tax deficiency on share-based compensation pay, percent Effective Income Tax Rate Reconciliation, Excess Tax Deficiency On Share-based Compensation, Percent Effective income tax rate reconciliation, excess tax deficiency on share-based compensation, percent. Change in Accounting Principle, Accounting Standards Update, Adopted [true false] AuditorLocation Auditor Location Nonoperating Income (Expense) [Abstract] NON-OPERATING EXPENSE (INCOME): Marketable Securities [Table Text Block] Marketable Securities, Available-for-Sale AccAmort,InangibleAsset,Affiliates AccAmort,InangibleAsset,Affiliates,Disposals AccAmort,InangibleAsset,Affiliates,Disposals Business Combination, Recognized Asset Acquired, Receivable, Current Receivables, net Accounting Period Fiscal Period, Policy [Policy Text Block] Amounts due to founding members, net Amounts due to founding members, net Amounts due to founding members, net Cash Contributed In Acquisition Cash Contributed In Acquisition Cash contributed upon reconsolidation Issuance of shares Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Issuance of Equity by Subsidiary to Noncontrolling Interests Income Tax Authority Income Tax Authority [Domain] Schedule of Available-for-sale Securities [Table] Debt Securities, Available-for-Sale [Table] Entity Interactive Data Current Entity Interactive Data Current O 2025 Q4 Dividends [Member] O 2025 Q3 Dividends. 2025 Q4 Dividends Deferred revenue Increase (Decrease) in Contract with Customer, Liability Income Statement Location Income Statement Location [Domain] Effective Income Tax Rate Reconciliation Compensation Limitations, Percent Effective income tax rate reconciliation compensation limitations, percent. Executive compensation limitation, percent 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 National advertising revenue National Advertising Revenue [Member] National advertising revenue. Local And Regional Advertising Revenue [Member] Local and regional advertising revenue. Local and Regional Advertising Revenue Accrued bonus Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Bonuses Noncancelable contract terms Noncancelable Contract Terms Noncancelable contract terms. Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Fair Value of Intangible Assets Non-current Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Fair Value of Intangible Assets Non-current Fair value of intangible assets Dividends declared per common share (in usd per share) Common Stock, Dividends, Per Share, Declared Cash dividends declared per share Debt Issuance Costs, Capitalized During Reconsolidation Debt Issuance Costs, Capitalized During Reconsolidation Debt Issuance Costs, Capitalized During Reconsolidation One founding members. One Founding Members [Member] One Founding Members Line of Credit Facility, Current Borrowing Capacity Line of credit facility, current borrowing capacity Income tax benefit from share-based compensation Share-Based Payment Arrangement, Expense, Tax Benefit Entity Tax Identification Number Entity Tax Identification Number Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] NCM, Inc. Stockholders' Equity: Share Price Closing stock price Repayments of Notes Payable Repayments of Notes Payable Repayments of term loan facilities Payment of upfront payments. Payment of Upfront Payments Payment of upfront payments 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. Cloud Computing Arrangements Cloud Computing Arrangements [Member] Cloud Computing Arrangements. Agreenment to exchange on-screen advertising Agreement to Exchange On-Screen Advertising Agreement to exchange on-screen advertising. Expected Payments To Affiliates For Tax Sharing Agreement Expected Payments To Affiliates For Tax Sharing Agreement Expects to pay affiliates for tax sharing agreement Aggregate Fair Value. Aggregate Fair Value Member Aggregate Fair Value Construction in progress Construction in Progress, Gross Local Phone Number Local Phone Number Related Party Transaction [Domain] Related Party Transaction [Domain] Capital Expenditures Policy [Text Block ] Capital expenditures policy text block. Capital Expenditures Other Liabilities, Current Other current liabilities WEIGHTED AVERAGE SHARES OUTSTANDING: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Weighted average shares outstanding: Percentage of cash savings related to taxes Percentage Of Cash Savings Related To Taxes Percentage of cash savings related to taxes. Auditor Opinion [Text Block] Auditor Opinion Trademarks Trademarks [Member] Cumulative Negative Distributions Made to Limited Liability Company Cumulative negative distributions made to limited liability company. Cumulative negative distributions made to limited liability company Equipment Computer Hardware And Software [Member] Equipment, computer hardware and software. Equipment, Computer Hardware and Software Financing Receivable, Current, Allowance for Credit Loss [Table Text Block] Schedule of Allowance for Credit Losses Debt Intstrument, Debt Covenant Aggregate Revolving Commitment Trigger Debt Intstrument, Debt Covenant Aggregate Revolving Commitment Trigger Debt intstrument, debt covenant aggregate revolving commitment trigger Cash Acquired from Acquisition Cash, cash equivalents and restricted cash reconsolidated Accounting Policies [Abstract] Accounting Policies [Abstract] Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Revenue Revenue from Contract with Customer, Excluding Assessed Tax Revenue (including revenue from related parties of $0.1, $0.0 and $14.2, respectively) Customer Relations Customer Relations [Member] Customer Relations Maximum potential payment Guarantor Obligations, Maximum Exposure, Undiscounted Earnings Per Share, Basic, by Common Class, Including Two-Class Method [Table] Performance-based Restricted Stock Units Performance-based Restricted Stock Units [Member] Performance-based Restricted Stock Units. Proceeds from Equity Method Investment, Investing Activities Proceeds from Equity Method Investment, Investing Activities Proceeds received from equity method investment Percentage of common membership units outstanding Ownership Interest Percentage in Limited Liability Company Ownership interest percentage in limited liability company. Lessee, Operating Lease, Liability, to be Paid, Year Four 2029 Cinema Advertising Management System [Member] Cinema Advertising Management System. Cinema Advertising Management System Class of Stock Class of Stock [Domain] Class of Stock [Domain] Common stock available for grants Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant 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 Percent of compensation participants may contribute Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent Proceeds from integration and other encumbered theater payments made by affiliates, operating activities. Proceeds From Integration And Other Encumbered Theater Payments Made By Affiliates, Operating Activities Proceeds From Integration And Other Encumbered Theater Payments Made By Affiliates, Operating Activities ESA Party integration and encumbered theater payments Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Related Party Founding Members [Member] Related party founding members. Founding Members Founding Members Entity Emerging Growth Company Entity Emerging Growth Company 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 Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term