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Debt Instrument [Axis] Debt Instrument Debt Instrument [Axis] Receivables, net Increase (Decrease) in Accounts Receivable Other, net Increase (Decrease) in Other Operating Assets and Liabilities, Net Entity Address, Postal Zip Code Entity Address, Postal Zip Code Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other Other liabilities Estimated revenue to be recognized on noncancelable leases Remaining performance obligation Revenue, Remaining Performance Obligation, Amount Number of Screens Advertising NCM Cinema Number of screens advertising NCM cinema Number of screens advertising NCM cinema Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Cash paid for interest Cash paid for interest Interest Paid, Excluding Capitalized Interest, Operating Activities Common Units Common Units [Member] Common units. Number of Operating Segments Number of operating segments Thomas Lesinski Thomas Lesinski [Member] Thomas Lesinski. Business Combination Disclosure [Text Block] Reconsolidation of NCM LLC Other Developments Policy. Other Developments Policy [Policy Text Block] Other Developments Payable under the TRA 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. Stockholders' Equity, Reverse Stock Split Stockholders' Equity, Reverse Stock Split Balance (in shares) Balance (in shares) Shares, Outstanding Other Other Noncash Income (Expense) Fair Value, Hierarchy Fair Value Hierarchy and NAV [Axis] Fair Value, Inputs, Level 2 [Member] Fair Value, Inputs, Level 2 [Member] A C J V L L C [Member] AC JV, LLC A C J V L L C [Member] AC JV, LLC. Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Amounts Due To Members, Net Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Amounts Due To Members, Net Amounts due to members, net Local and regional advertising revenue Local Advertising Revenue [Member] Local Advertising Revenue [Member] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] ESA advertising revenue from beverage concessionaire agreements Founding Member Advertising Revenue From Beverage Concessionaire Agreements [Member] Founding member advertising revenue from beverage concessionaire agreements. Products and Services Product and Service [Axis] Product and Service [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Investment, Name [Domain] Agreement expiration date Agreement Expiration Date Agreement expiration date. Base Rate Base Rate [Member] Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Dividends Payable, Date to be Paid Dividends payable, date to be paid Related Party Transaction [Line Items] Related Party Transaction [Line Items] Debt issuance costs, net Debt Issuance Costs, Line of Credit Arrangements, Net Document Information [Table] Document Information [Table] Concentration Risk Benchmark [Axis] Title of Individual [Axis] Title and Position [Axis] Revenue from Contract with Customer [Text Block] Revenue from Contracts with Customers and Accounts Receivable Cash and Cash Equivalents [Domain] Debt instrument currently outstanding loan amount Outstanding borrowings Long-Term Debt, Gross Units of Partnership Interest, Amount - Regal Units of Partnership Interest, Amount - Regal Units of Partnership Interest, Amount - Regal Remaining borrowing capacity of credit facility Line of Credit Facility, Remaining Borrowing Capacity Dividends Payable, Date Declared Dividends payable, date declared Other Commitments [Line Items] Other Commitments [Line Items] Finite-Lived Intangible Asset, Useful Life Useful Life (years) Weighted average remaining life Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-Term Debt Long-term debt Entity Central Index Key Entity Central Index Key NCM LLC equity issued for purchase of intangible asset Noncontrolling Interest, Increase from Subsidiary Equity Issuance 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. Payable under the TRA Agreement Released Payable Amount Agreement released payable amount. Payable amount Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Gain on deconsolidation of NCM LLC Gain on deconsolidation Deconsolidation, Gain (Loss), Amount Gain on deconsolidation of affiliate Gain on deconsolidation of affiliate Common stock, shares issued (in shares) Common Stock, Shares, Issued Preferred Stock [Member] Preferred Stock Deferred income tax expense, net of valuation allowance Deferred income tax expense, net of valuation allowance Deferred income tax expense, net of valuation allowance Income Statement [Abstract] Income Statement [Abstract] Entity Address, State or Province Entity Address, State or Province Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract] Fair value of assets acquired: Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest LOSS BEFORE INCOME TAXES Revision of Prior Period [Axis] Revision of Prior Period [Axis] Debt Instrument, Trigger Amount Covenant Debt Instrument, Trigger Amount Covenant Debt instrument, trigger amount covenant NCM LLC common membership units redemption Cash redemption of NCM LLC common membership units AdjustmentsToAdditionalPaidInCapitalInvestmentInSubsidiary NCM LLC common membership unit redemption for NCM, Inc. common stock Concentration Risk Type [Domain] Short-term debt, net of debt issuance costs of $0.0 and $0.0, respectively Short-Term Debt Customer [Axis] Customer Concentration Risk Customer Concentration Risk [Member] CASH FLOWS FROM FINANCING ACTIVITIES: Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Customer One Customer One [Member] Customer One [Member] Finite-Lived Intangible Asset, Expected Amortization, Year Three Accumulated amortization, intangible assets, 2028 Line of Credit Facility, Expiration Date Maturity date Dividends Payable, Date of Record Dividends payable, date of record Payment of debt issuance costs Payments of Debt Issuance Costs Amortization of debt issuance costs Amortization of Debt Issuance Costs Increase in dividend equivalent accrual not requiring cash in the period Increase Decrease in Dividend Equivalent Accrual Not Requiring Cash in the Period Increase decrease in dividend equivalent accrual not requiring cash in the period. Maximum potential payment Guarantor Obligations, Maximum Exposure, Undiscounted Subsequent Event [Line Items] Basic (in usd per share) Earnings Per Share, Basic Debt Issuance Costs, Gross Debt issuance costs, gross OPERATING EXPENSES: Operating Expenses [Abstract] Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets Other assets Incremental share based compensation expense Incremental Share Based Compensation Expense Incremental share based compensation expense. Accounts Receivable, Allowance for Credit Loss, Writeoff Allowance for Customer Receivables, Write-offs, net Contract with Customer, Liability, Current Contract with Customer, Liability, Current Deferred revenue Contract with Customer, Liability, Current Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other Other current liabilities Stock repurchase program, period Share Repurchase Program, Period in Force Share-based compensation expense/capitalized Share-Based Payment Arrangement, Expense Cinemark Cinemark Holdings In Cinemark Holdings Inc [Member] Cinemark holdings, Inc. Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accrued Payroll And Related Expenses Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accrued Payroll And Related Expenses Accrued payroll and related expenses Schedule of Business Acquisitions, by Acquisition [Table Text Block] Summary of Assets Acquired and Liabilities Assumed Debt instrument currently outstanding loan amount Long-term Debt Long-term Debt Long-Term Debt Customer Two Customer two. Customer Two [Member] Retained earnings Retained Earnings (Accumulated Deficit) CURRENT ASSETS: Assets, Current [Abstract] Payment of dividends Payments of Ordinary Dividends, Common Stock Increase Decrease Due from Founding Members Current Increase decrease due from founding members current. Decrease of amounts due from ESA Parties Adjustments to Additional Paid in Capital, Other Income tax and other impacts of NCM LLC ownership changes Net Cash Provided by (Used in) Operating Activities Net cash provided by (used in) operating activities Stock Issued Issuance of shares upon the reconsolidation of NCM LLC Issuance of shares upon the reconsolidation of NCM LLC Stock issued Amendment Description Amendment description Products and Services Product and Service [Domain] Product and Service [Domain] Date of Agreement Date of agreement. Date of agreement Debt Instrument [Line Items] Debt Instrument [Line Items] Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Property and equipment, net Property, Plant and Equipment, Net Property and equipment, net of accumulated depreciation of $6.9 and $4.8, respectively Other Operating Activities, Cash Flow Statement Other cash flows from operating activities Other cash flows from operating activities Percentage of increase in payment per theatre patron Percentage Of Increase In Payment Per Theater Patron Percentage of increase in payment per theater patron. Fair Value, Measurements, Recurring Fair Value, Recurring [Member] Gain (loss) on remeasurement of payable to founding members under TRA Gain (Loss) On Re Measurement Of Payable To Founding Members Under TRA Gain (Loss) On Re Measurement Of Payable To Founding Members Under TRA Gain (Loss) On Re Measurement Of Payable To Founding Members Under TRA Common stock, par value (in usd per share) Common Stock, Par or Stated Value Per Share Intangible Assets Intangible Assets Disclosure [Text Block] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] CASH FLOWS FROM OPERATING ACTIVITIES: Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Antidilutive Securities, Name Antidilutive Securities, Name [Domain] Investment in AC JV, LLC Equity Method Investments Investet cash to acquire equity interests Entity Entity [Domain] Consolidation, Less-than-Wholly-Owned Subsidiary, Parent Ownership Interest, Effect of Change [Table] Equity Components Equity Components [Axis] Trademark Trademark [Member] Trademark Entity Address, Address Description Entity Address, Address Line One Schedule of Loss Per Share, Basic and Diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Accrued payroll and related expenses Employee-related Liabilities, Current Schedule of Related Party Transactions, by Related Party [Table] Related Party Transaction [Table] Schedule of Finite-Lived Intangible Assets [Table] Intangible Asset, Finite-Lived [Table] Debt Instrument Covenant Fixed Charge Coverage Ratio Debt instrument, covenant, fixed charge coverage ratio. Fixed charge coverage ratio Agreement Released Reversed Receivable Amount Agreement released reversed receivable amount. Reversed amount Agreement extended term Agreement Extended Term Agreement extended term. Subsequent Event Type [Axis] Fair Value, Separate Account Investment [Table] Debt Instrument, Fixed Coverage Covenant Debt Instrument, Fixed Coverage Covenant Debt instrument, fixed coverage covenant Total Nonoperating Income (Expense) Additional paid in capital Additional Paid In Capital And Accumulated Deficit Common Stock Additional paid in capital and accumulated deficit common stock. Borrowing amount of credit facility Line of Credit Facility, Maximum Borrowing Capacity Finite-Lived Intangible Asset, Expected Amortization, Year Two Accumulated amortization, intangible assets, 2027 Amendment Flag Amendment Flag Less: Net loss attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Operating Lease, Liability, Noncurrent Long-term lease liabilities AMC and Cinemark American Multi Cinema Inc And Cinemark Holdings Inc [Member] American Multi-Cinema, Inc. and Cinemark Holdings, Inc. Debt Instrument, Name [Domain] Debt Instrument, Name Debt Instrument, Name [Domain] Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] NET LOSS ATTRIBUTABLE TO NCM, INC. Net loss attributable to NCM, Inc. (in millions) Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period DueToFoundingMembersCurrent DueToFoundingMembersCurrent DueToFoundingMembersCurrent Amounts due to ESA Parties, net Variable Rate Variable Rate [Domain] Business Acquisition, Pro Forma Revenue Revenue Customer [Domain] Schedule of Outstanding Debt Schedule of Debt [Table Text Block] Equity Component Equity Component [Domain] Range Statistical Measurement [Domain] 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 Administrative and other costs General and Administrative Expense Interest on borrowings Interest Expense, Debt Unbilled accounts receivable Unbilled Contracts Receivable Other non-operating (income) expense, net Other Nonoperating Income (Expense) Other non-operating income, net Trademarks [Member] Trademarks [Member] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Proceeds from Lines of Credit Proceeds from lines of credit Consolidated net loss Net Income (Loss), Including Portion Attributable to Noncontrolling Interest CONSOLIDATED NET LOSS Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Accounts Receivable, Credit Loss Expense (Reversal) Allowance for Customer Receivables, Provision for bad debt Allowance for Customer Receivables, Provision for bad debt Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Finite-Lived Intangible Assets Acquired Total intangible assets Total intangible assets AMC American Multi Cinema Inc [Member] American Multi Cinema Inc [Member] American Multi-Cinema, Inc. Debt Issuance Costs, Current, Net Debt Issuance Costs, Current, Net Prepaid Expense and Other Assets, Current Prepaid Expense and Other Assets, Current Weighted Average Term, ESA and Affiliate Weighted Average Term, ESA and Affiliate Weighted average term, ESA and affiliate (in years) Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Class of Stock Class of Stock [Domain] Non-cash loss on re-measurement of the payable under the tax receivable 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 payable to founding members under tax sharing agreement. Customer with revenue in excess of ten percent of Accounts Payable Customer with revenue in excess of ten percent of Accounts Receivable Customer with revenue in excess of ten percent of Accounts Receivable Comprehensive Income (Loss), Net of Tax, Attributable to Parent COMPREHENSIVE LOSS ATTRIBUTABLE TO NCM, INC. Comprehensive Income (Loss), Net of Tax, Attributable to Parent, Total Comprehensive loss, net of tax Common stock, shares outstanding (in shares) Balance (in shares) Balance (in shares) Common Stock, Shares, Outstanding Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Line of Credit Facility, Current Borrowing Capacity Line of credit facility, current borrowing capacity Preferred stock, par value (in usd per share) Preferred Stock, Par or Stated Value Per Share O 2025 Q2 Dividends [Member] O 2025 Q2 Dividends. 2025 Q2 Dividends Revenue Revenue Benchmark [Member] Repayments of Lines of Credit Repayment of revolving credit facility Antidilutive Securities Antidilutive Securities [Axis] Common Membership Units Issued And Cancelled Common Membership Units Issued And Cancelled Common membership units issued and cancelled Finite-Lived Intangible Assets, Cost Incurred to Renew or Extend Finite-Lived Intangible Assets, Cost Incurred to Renew or Extend Reduction to retained earnings Reduction Retained Earnings Accumulated Deficit Reduction retained earnings accumulated deficit. Total non-current liabilities Liabilities, Noncurrent Fair Value, Separate Account Investment [Line Items] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Entity Interactive Data Current Entity Interactive Data Current Line of credit facility, frequency of commitment fee payment Line of Credit Facility, Frequency of Commitment Fee Payment Cost Method Investment Obtained In Exchange For Future Advertising Inventory Cost method investment obtained in exchange for future advertising inventory. Cost method investment obtained in exchange for future advertising inventory Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities [Abstract] Fair value of liabilities assumed: Accrued integration payments Accrued Integration Payments Accrued integration payments. Document Quarterly Report Document Quarterly Report Related Party Transaction [Domain] Related Party Transaction [Domain] Cash, cash equivalents and restricted cash at beginning of period Cash, cash equivalents and restricted cash at end of period Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents Related Party Transactions Related Party Transactions Disclosure [Text Block] Range Statistical Measurement [Axis] Network operating costs Cost of Goods and Services Sold Operating Lease, Cost Operating lease cost Total assets Assets, Fair Value Disclosure Assets, Fair Value Disclosure Assets, fair value Purchase of an intangible asset with NCM LLC equity Noncash or Part Noncash Acquisition, Intangible Assets Acquired Term for exchange of equity interests. Term for Exchange of Equity Interests Term for exchange of equity interests Related Party Related and Nonrelated Parties [Domain] Lease, Cost Total lease cost Summary of Revenue from Contracts with Customers Disaggregation of Revenue [Table Text Block] Selling and marketing costs Selling and Marketing Expense Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] Reorganization, Chapter 11 [Domain] Ownership [Domain] Ownership [Domain] Increase (Decrease) in Prepaid Expense Prepaid expenses Cash and Cash Equivalents [Axis] Capital expenditures Capital Expenditures Capital expenditures. TOTAL ASSETS Assets The Company Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] Aggregate percentage of theater access fee paid Percentage Of Theater Access Fee Paid Percentage of theater access fee paid. Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Number of shares of restricted stock and stock units vested Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period 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 Business Acquisition Business Acquisition [Line Items] Entity Address, City or Town Entity Address, City or Town Equity in earnings of non-consolidated entities Income (Loss) from Equity Method Investments Payments to Acquire Businesses, Gross Business Combination, Price of Acquisition, Expected Fair value of NCM LLC Dividends [Axis] Share Price Closing stock price Revision of Prior Period [Domain] Revision of Prior Period [Domain] Payments Of Repurchase Of Stock For Restricted Stock Tax Withholding Payments Of Repurchase of stock for restricted stock tax withholding. Repurchase of stock for restricted stock tax withholding Repurchase of stock for restricted stock tax withholding Contract with Customer, Liability, Change in Timeframe, Performance Obligation Satisfied, Revenue Recognized Contract with Customer, Liability, Change in Timeframe, Performance Obligation Satisfied, Revenue Recognized Contract with Customer, Liability, Change in Timeframe, Performance Obligation Satisfied, Revenue Recognized Share-based compensation issued, net of tax (in shares) Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture General Company Information [Line Items] General Company Information [Line Items] General company information. Line Of Credit Facility, Percentage Of Revolving Commitment Line Of Credit Facility, Percentage Of Revolving Commitment Line Of credit facility, percentage of revolving commitment Weighted average discount rate Operating Lease, Weighted Average Discount Rate, Percent Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Deferred Revenue Deferred revenue Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual Business Acquisition, Pro Forma Information [Table Text Block] Summary of Pro Forma Financial Information Stock Issued During Period, Value, New Issues Issuance of shares to founding members Issuance of shares to founding members Chief Executive Officer Chief Executive Officer [Member] Increase (decrease) in intangible assets, net Finite-Lived Intangible Assets, Period Increase (Decrease) Finite-Lived Intangible Assets, Period Increase (Decrease), Total CURRENT LIABILITIES: Liabilities, Current [Abstract] Income Taxes Paid, Net Cash paid for income taxes Document Type Document Type Number of shares, repurchased Stock Repurchased and Retired During Period, Shares Stock Repurchased and Retired During Period, Shares Purchases of NCM, Inc.'s common stock, shares Asset Impairment Charges Asset Impairment Charges, Total Asset impairment charges Title of 12(b) Security Title of 12(b) Security Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Lease Cost Lease, Cost [Table Text Block] Dividends [Domain] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Document Fiscal Period Focus Document Fiscal Period Focus Long-term debt Carrying value of long-term debt Long-Term Debt, Excluding Current Maturities Consolidation Consolidation, Policy [Policy Text Block] General Company Information [Table] General Company Information [Table] General company information. Subsequent Event Type [Domain] Units of Partnership Interest, Amount - AMC Units of Partnership Interest, Amount - AMC Units of Partnership Interest, Amount - AMC Number of theaters NCM show is presented Number of Theaters NCM Show is Presented Number of theaters NCM show is presented Revenue from contract, payment due period from the customer Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Common membership units issued Common Membership Units Issued Common membership units issued. NON-CURRENT ASSETS: Assets, Noncurrent [Abstract] Reorganization, Chapter 11 [Axis] Purchases of NCM, Inc.'s common stock Authoriized asset repurchase Payments for Repurchase of Common Stock Payments for Repurchase of Common Stock Marketable Securities, Current Short-term marketable securities Total marketable securities 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. Common Stock, Dividends, Per Share, Declared Cash dividends declared per share Revenue ESA advertising revenue from beverage concessionaire agreements (included in revenue) Revenue from Contract with Customer, Excluding Assessed Tax REVENUE Income Taxes Income Tax Disclosure [Text Block] Ownership [Axis] Ownership [Axis] 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 ESAs and Network Affiliate Agreements E S As And Affiliate Agreements [Member] ESAs and Affiliate Agreements. Other Commitments [Table] Other Commitments [Table] Cash paid for interest Interest Paid (Received) Net Interest paid (received) net. Cash paid for interest Business Combination, Asset Acquisition, and Joint Venture Formation [Abstract] Credit Facility Credit Facility [Domain] Finite-Lived Intangible Assets, Net Intangible assets, net of accumulated amortization Intangible assets, net of accumulated amortization of $70.4 and $52.8, respectively Catherine Sullivan [Member] Catherine Sullivan. Catherine Sullivan Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block] Summary of Intangible Assets Acquired LIABILITIES AND EQUITY Liabilities and Equity [Abstract] Stock Repurchased and Retired During Period, Value Purchases of NCM, Inc.'s common stock Document Period End Date Document Period End Date Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Effective tax rate Effective Income Tax Rate Reconciliation, Percent Recently Adopted Accounting Pronouncements Recently Adopted Accounting Pronouncements Policy [Text Block] Recently adopted accounting pronouncements. NON-CURRENT LIABILITIES: Liabilities, Noncurrent [Abstract] Shares excluded from the calculation of diluted weighted average shares Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount AMC AMC [Member] AMC APIC, Share-Based Payment Arrangement, Increase for Cost Recognition, Total Share-based compensation expense/capitalized APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Investment in AC JV, LLC, Percentage Equity Method Investment, Ownership Percentage Debt Instrument Covenant Leverage Ratio Debt instrument covenant leverage ratio. Leverage ratio Accrued expenses Accrued Liabilities, Current Income tax benefit Income tax expense Income Tax Expense (Benefit) Cash dividends declared Dividends, Common Stock, Cash Cash dividends declared amount Cash dividends declared Gain (Loss) on Disposition of Property Plant Equipment, Total Gain (Loss) on Disposition of Property Plant Equipment Gain on sale of asset Trading Symbol Trading Symbol Equity Interest Acquired, Percentage Equity Interest Acquired, Percentage Equity interest acquired, percentage Variable Rate Variable Rate [Axis] Total NCM, Inc. stockholders’ equity Equity, Attributable to Parent Liabilities recorded for related party obligations Guarantor Obligations, Current Carrying Value Other Liabilities, Noncurrent Other long-term liabilities Share-Based Compensation Share-Based Payment Arrangement [Policy Text Block] Related Party Transactions [Abstract] Related Party Transactions [Abstract] 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. Variable Lease, Cost Variable lease cost Debt [Member] Debt [Member] Goodwill Goodwill Weighted-average interest rate Debt, Weighted Average Interest Rate Financing Receivable, Allowance for Credit Loss [Line Items] Estimates Use of Estimates, Policy [Policy Text Block] ACJV Cash and Accrued Distributions ACJV cash and accrued distributions. ACJV Cash and Accrued Distributions Total non-current assets Assets, Noncurrent Customer ten percent of revenue Concentration Risk, Percentage 2025 AMC Agreement Two Thousand and Twenty Five AMC Agreement [Member] Two thousand and twenty five AMC agreement. Gain on bankruptcy Gain on bankruptcy Gain on bankruptcy Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Operating Lease, Lease Income, Lease Payments Operating Lease, Lease Income, Lease Payments Network Affiliates Network Affiliates Network Affiliates Security Exchange Name Security Exchange Name Secured Creditors Secured Creditors [Member] Secured Creditors National Cine Media Inc [Member] NCM Inc. National Cine Media Inc [Member] National CineMedia, 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 Reorganization, Chapter 11, Fresh-Start Adjustment [Member] Common membership units outstanding Units of Partnership Interest, Amount Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Class of Stock Class of Stock [Axis] Accumulated depreciation, property and equipment Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Legal Entity Legal Entity [Axis] National and Regional Advertising Revenue [Member] [Member] National and Regional Advertising Revenue [Member] [Member] National and Regional Advertising Revenue [Member] [Member] Theater exhibition fees Theater Exhibition Fees Theater exhibition fees, Fair Value Measurements Fair Value Disclosures [Text Block] Subsequent Event [Member] Subsequent Event Maximum Maximum [Member] TOTAL LIABILITIES AND EQUITY Liabilities and Equity Gain (Loss) on Extinguishment of Debt, Total Gain (Loss) on Extinguishment of Debt Gain on modification and retirement of debt, net Loss on debt extinguishment Loss on debt extinguishment Operating lease, right-of-use asset Operating Lease, Right-of-Use Asset Supplemental disclosure of cash flow information: Supplemental Cash Flow Information [Abstract] Diluted (in usd per share) Earnings Per Share, Diluted Total liabilities assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities Total liabilities assumed Total liabilities assumed Total liabilities Liabilities Debtor Reorganization Items, Legal and Advisory Professional Fees Debtor reorganization items, legal and advisory professional fees Fair Value Hierarchy Fair Value Hierarchy and NAV [Domain] Total current assets Assets, Current Net Cash Provided by (Used in) Investing Activities Net cash (used in) provided by investing activities Stock Issued During Period, Shares, New Issues Issuance of shares, shares Issued shares to secured creditors, shares Cash [Member] Maria Woods Maria Woods [Member] Maria Woods. Financing Receivable, Allowance for Credit Loss [Table] Entity Filer Category Entity Filer Category Description of Business Policy. Description of Business Policy [Policy Text Block] Description of Business Total equity Balance Balance Equity, Including Portion Attributable to Noncontrolling Interest Remaining term (in years) Agreement With Founding Members, Remaining Term Agreement With Founding Members, Remaining Term Nonoperating Income (Expense) [Abstract] NON-OPERATING EXPENSE (INCOME): Current Fiscal Year End Date Current Fiscal Year End Date EQUITY: Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] 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] Document [Domain] Document [Domain] Property, Plant and Equipment, Policy [Policy Text Block] Long-lived Assets Noncontrolling Interest [Member] Non-controlling Interest Intangible Assets, Period of Extension Intangible assets, period of extension. Intangible assets, period of extension Non-cash share-based compensation Share-Based Payment Arrangement, Noncash Expense Related Party Transaction [Axis] Related Party Transaction [Axis] Related Party Related and Nonrelated Parties [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Entity Registrant Name Entity Registrant Name 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 attributable to NCM, Inc. and transfers from noncontrolling interests Customer ten percent of revenue Customer with revenue in excess of ten percent of total revenue Customer with revenue in excess of ten percent of total revenue Number of reportable segment Number of Reportable Segments Loss Per Share Earnings Per Share [Text Block] Debt Instrument, Maturity Date Debt Instrument, Maturity Date Entity Emerging Growth Company Entity Emerging Growth Company Other current liabilities Other Liabilities, Current Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Interest income Interest income Interest Income (Expense), Nonoperating Interest Income (Expense), Nonoperating, Total Network Affiliates Network Affiliates [Member] Network Affiliates Increase (Decrease) in Due to Related Parties ESA amounts due to/from, net Common stock, shares authorized (in shares) Common Stock, Shares Authorized Concentration Risk Type [Axis] Amounts due from founding members Due From Founding Members, Current Due From Founding Members, Current Amounts due from ESA Parties NCM, LLC. National Cine Media L L C [Member] National CineMedia, LLC. Fair Value, Inputs, Level 1 [Member] Fair Value, Inputs, Level 1 [Member] Accounts payable and accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities Repayments of Unsecured Debt Repayments of unsecured debt Debt Disclosure [Abstract] Debt Disclosure [Abstract] Income tax and other impacts of subsidiary 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 Amortization of Intangible Assets Amortization expense Amortization of intangible assets Affiliates Agreement, Term Affiliates Agreement, Term Affiliates agreement, term Gain on re-measurement of the payable to founding members 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 Debt Agreement Debt, Policy [Policy Text Block] Intangible Assets Affiliates [Member] Intangible Assets Affiliates [Member] Intangible Assets Affiliates Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets Prepaid expenses and other current assets Revenue Recognition Revenue [Policy Text Block] Share-based compensation issued, net of tax Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture Schedule of Related Party Transactions Schedule of Related Party Transactions [Table Text Block] Business Acquisition, Pro Forma Net Income (Loss) Business Acquisition, Pro Forma Net Income (Loss) Net Loss Business Combination, Separately Recognized Transactions, Assets Recognized Business combination, capital contribution recognized transactions Percentage of common membership units outstanding Limited Liability Company or Limited Partnership, Members or Limited Partners, Ownership Interest Accounting Policies [Abstract] Accounting Policies [Abstract] Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Customer Percentage of Accounts Receivable Customer Percentage of Accounts Receivable Customer Percentage of Accounts Receivable Intangible Assets ESA [Member] Intangible Assets ESA [Member] Intangible Assets ESA Supplemental disclosure of non-cash financing and investing activity: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Statement [Table] Statement [Table] Segment Reporting Segment Reporting, Policy [Policy Text Block] Noncash or Part Noncash Acquisition, Investments Acquired Cost method investment obtained in exchange for future advertising inventory Business Combination, Bargain Purchase, Gain Recognized, Amount Business combination, gain upon the reconsolidation Gain on reconsolidation of NCM LLC Gain on reconsolidation of NCM LLC Subsequent Event [Table] Earnings Per Share, Diluted [Abstract] Loss per NCM, Inc. share: Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Entity File Number Entity File Number CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Total other investments Other Long-Term Investments Earnings Per Share [Abstract] NET LOSS PER NCM, INC. COMMON SHARE: Senior Secured Revolving Credit Facility 2025 [Member] Senior secured revolving credit facility 2025. 2025 Credit Facility Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Equity Method Investments [Table Text Block] Schedule of Other Investments Share Repurchase Program Share Repurchase Program [Text Block] Share repurchase program. OPERATING LOSS Operating Income (Loss) Revolving Credit Facility 2023 Revolving Credit Facility 2023 [Member] Revolving Credit Facility 2023 Letter of Credit Letter of Credit [Member] Entity Shell Company Entity Shell Company Document Information, Document [Axis] Document Information, Document [Axis] Entity Tax Identification Number Entity Tax Identification Number ASSETS Assets [Abstract] Stock Options And Non-Vested Restricted Stock Stock Options And Non Vested Restricted Stock [Member] Stock options and non-vested restricted stock. Related Party Transaction, Amounts of Transaction Related party transaction, amounts of transaction Related party transaction, investment cash contributed Entity Current Reporting Status Entity Current Reporting Status 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. Investment Owned, Cost Investment owned, at cost Other investments Subsequent Events [Abstract] Subsequent Events [Abstract] 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. Deferred revenue Increase (Decrease) in Contract with Customer, Liability Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets Total assets acquired Total assets acquired Document Fiscal Year Focus Document Fiscal Year Focus Additional amount accrued related to minimum guarantees Guarantor Obligations, Maximum Exposure, Undiscounted, Additional Amount Accrued Guarantor Obligations, Maximum Exposure, Undiscounted, Additional Amount Accrued Preferred stock, $0.01 par value; 10,000,000 shares authorized, 50 issued and outstanding Preferred Stock, Value, Issued Capital Expenditures Incurred but Not yet Paid Accrued purchases of intangible assets Accumulated amortization, intangible assets Finite-Lived Intangible Assets, Accumulated Amortization Business Acquisition [Axis] Business Acquisition [Axis] City Area Code City Area Code Total current liabilities Liabilities, Current Management Fee Reimbursement Management Fee Reimbursement [Member] Management Fee Reimbursement Cash redemption of NCM LLC common membership units Cash redemption of NCM LLC common membership units Cash Redemption Of Subsidiary Common Membership Units Cash redemption of subsidiary common membership units. Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Line of credit facility, unused capacity, commitment fee percentage Payments to Acquire Additional Interest in Subsidiaries Payments to acquire capital contributions Local Phone Number Local Phone Number Other Investments Other Investments Preferred Stock, Shares Outstanding Preferred stock, shares outstanding (in shares) Preferred stock, shares outstanding (in shares) Preferred stock, shares outstanding (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Transfers Related To Bankruptcy Settlement Transfers Related To Bankruptcy Settlement [Member] Transfers Related To Bankruptcy Settlement CASH FLOWS FROM INVESTING ACTIVITIES: Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Document And Entity Information [Abstract] Document And Entity Information [Abstract] Document And Entity Information [Abstract] Debt instrument, floor rate Debt Instrument Floor Rate Debt instrument, floor rate. Short-term lease liability Operating Lease, Liability, Current Document Information [Line Items] Document Information [Line Items] Depreciation expense Depreciation, Nonproduction Debt Instrument, Interest Rate, Stated Percentage Interest rate Retained Earnings Retained Earnings [Member] Retained Earnings Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment 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 Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables Receivables, net Document Transition Report Document Transition Report Net Income Attributable to Parent Net Income Attributable to Parent Net Income Attributable to Parent Net income attributable to NCM, Inc. following conversion of dilutive membership units (in millions) Stock repurchase program, authorized amount Share Repurchase Program, Authorized, Amount Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Security, Excluded EPS Calculation [Table] Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year Accumulated amortization, intangible assets, remainder of fiscal 2025 Minimum Minimum [Member] Common Stock [Member] Common Stock Common Stock [Member] Restricted Cash Restricted Cash Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain Business combination, gain on re-measurement of investment Gain on re-measurement of investment Gain on re-measurement of investment Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents Cash, cash equivalents and restricted cash Investment, Name [Axis] Investment, Name Investment, Name [Axis] Additional Paid in Capital (Deficit) Additional Paid-in Capital [Member] Accounts payable Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable Aggregate Fair Value - Short term marketable securities Short-term marketable securities Debt Securities, Available-for-Sale, Current Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile consolidated net (loss) income to net cash provided by (used in) operating activities: Datasets Datasets [Member] Datasets. Other assets Other Assets, Noncurrent Number of theaters advertising NCM cinema Number of Theaters Advertising NCM's Cinema Number of theaters advertising NCM cinema. Schedule of Allowance for Doubtful Accounts Financing Receivable, Current, Allowance for Credit Loss [Table Text Block] Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Noncontrolling interests Equity, Attributable to Noncontrolling Interest Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Finite-Lived Intangible Asset, Expected Amortization, Year One Accumulated amortization, intangible assets, 2026 Debt issuance costs, long-term Debt issuance costs, long-term Debt Issuance Costs, Noncurrent, Net Title of Individual [Domain] Title and Position [Domain] Customer Relationships [Member] Customer Relationships [Member] Regal Entertainment Group [Member] Regal Regal Entertainment Group [Member] Regal entertainment group. Common Stock, Value, Issued Common stock, $0.01 par value; 260,000,000 shares authorized, 93,424,020 and 95,755,491 issued and outstanding, respectively 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 Cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Recently Issued Accounting Pronouncements Recently Issued Accounting Pronouncements Policy [Text Block] Recently issued accounting pronouncements. 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 Fair Values of the Company's Assets Fair Value, Assets Measured on Recurring Basis [Table Text Block] Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual Operating Lease, Liability Operating Lease, Liability Number of customers more than ten percentage of accounts receivables Number of Customers More than Ten Percentage of Accounts Receivables Number of customers more than ten percentage of accounts receivables. Measurement Frequency Measurement Frequency [Axis] Commitments and Contingencies COMMITMENTS AND CONTINGENCIES (NOTE 8) Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Diluted (in shares) Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Accounts Receivable, after Allowance for Credit Loss, Current Receivables, net of allowance of $1.1 and $1.2, respectively Cinemark and Regal Cinemark and Regal [Member] Cinemark and Regal [Member] Cinemark and Regal [Member] Weighted average shares outstanding: WEIGHTED AVERAGE SHARES OUTSTANDING: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Concentration Risk Benchmark [Domain] Entity Small Business Entity Small Business Basis spread on variable rate, percent Debt Instrument, Basis Spread on Variable Rate Borrowings Debt Disclosure [Text Block] Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Table Text Block] Changes in Equity 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 NCM LLC equity issued for purchase of intangible asset National advertising revenue National Advertising Revenue [Member] National advertising revenue. Credit Facility Credit Facility [Axis] Local And Regional Advertising Revenue [Member] Local and regional advertising revenue. Local and Regional Advertising Revenue 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 Disclosure of accounting policy for concentration of credit risk and significant customers. Concentration of Credit Risk and Significant Customers Concentration Of Credit Risk And Significant Customers Policy [Text Block] Agreement to exchange on-screen advertising. Agreement to Exchange On-Screen Advertising Agreenment to exchange on-screen advertising Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Add: Dilutive effect of stock options, restricted stock and exchangeable membership units (in shares) Capital Expenditures Policy [Text Block ] Capital expenditures policy text block. Capital Expenditures Right of use assets obtained in exchange for lease liabilities Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Fair Value, Measurement Frequency Measurement Frequency [Domain] Deferred tax assets, valuation allowance Deferred Tax Assets, Valuation Allowance Debt Intstrument, Debt Covenant Aggregate Revolving Commitment Trigger Debt Intstrument, Debt Covenant Aggregate Revolving Commitment Trigger Debt intstrument, debt covenant aggregate revolving commitment trigger Fair Value, Inputs, Level 3 [Member] Fair Value, Inputs, Level 3 [Member] Weighted average remaining lease term Operating Lease, Weighted Average Remaining Lease Term Subsequent Events [Text Block] Subsequent Event Customer Relations Customer Relations [Member] Customer Relations Accounts payable Accounts Payable, Current Repayments of Long-Term Lines of Credit Repayment of line of credit Proceeds received from equity method investment Proceeds from Equity Method Investment, Investing Activities Proceeds from Equity Method Investment, Investing Activities Total Costs and Expenses Liabilities, fair value Liabilities, Fair Value Disclosure Liabilities, Fair Value Disclosure, Total Allowance for doubtful accounts receivable Accounts Receivable, Allowance for Credit Loss, Current Proceeds from integration and other encumbered theater payments made by affiliates, operating activities. Integration and other encumbered payments, related parties - operating activities Proceeds From Integration And Other Encumbered Theater Payments Made By Affiliates, Operating Activities ESA integration and other encumbered theater payments Related party founding members. Founding Members Related Party Founding Members [Member] Allowance for credit losses Accounts Receivable, Allowance for Credit Loss Allowance for Customer Receivables, Ending Balance Allowance for Customer Receivables, Beginning Balance