Vendor financed capital additions unpaid Vendor financed capital additions unpaid Vendor financed capital additions unpaid Maximum Maximum [Member] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Statistical Measurement [Domain] Statistical Measurement [Domain] CSC Holdings 4.625% Notes due December 1, 2030 CSC Holdings 4.625% Notes due December 1, 2030 [Member] CSC Holdings 4.625% Notes due December 1, 2030 Short-term Debt, Type [Axis] Short-Term Debt, Type [Axis] Title of 12(b) Security Title of 12(b) Security Carrying Amount Reported Value Measurement [Member] Document Fiscal Year Focus Document Fiscal Year Focus Share based compensation - Unrecognized deferred compensation cost Share based compensation - Unrecognized deferred compensation cost Share based compensation - Unrecognized deferred compensation cost Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll 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Deferred Cash Performance Awards Outstanding Amount of Deferred Cash Performance Awards Outstanding Contract assets Contract with Customer, Asset, after Allowance for Credit Loss Derivative Instrument [Axis] Derivative Instrument [Axis] Proceeds from Divestiture of Businesses Proceeds from Divestiture of Businesses Measurement Frequency [Axis] Measurement Frequency [Axis] Amendment Flag Amendment Flag Consolidated Entities [Axis] Consolidated Entities [Axis] Current Liabilities: Liabilities, Current [Abstract] Allowance for credit losses Accounts Receivable, Credit Loss Expense (Reversal) Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Principal payments on finance lease obligations Principal payments on finance lease obligations Finance Lease, Principal Payments Long term assets Assets, long term Assets, long term Cablevision Lightpath LLC 5.625% Notes due September 15, 2028 Cablevision Lightpath LLC 5.625% Notes due September 15, 2028 [Member] 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Transaction, Purchases from Related Party 2019 LTIP 2019 LTIP [Member] 2019 LTIP Summary of related party transactions Schedule of Related Party Transactions [Table Text Block] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Total current liabilities Current liabilities Liabilities, Current 2030 Long-Term Debt, Maturities, Repayments of Principal in Rolling Year Five Total deficiency Total deficiency Beginning balance Ending balance Limited Liability Company (LLC) Members' Equity, Including Portion Attributable to Noncontrolling Interest Customer relationships Customer Relationships [Member] Deferred revenue Increase (Decrease) in Deferred Revenue Short-term Debt, Type [Domain] Short-Term Debt, Type [Domain] Franchise fees and other taxes and fees Revenue from Contract with Customer, Including Assessed Tax Entity Address, City or Town Entity Address, City or Town Non-Cash Investing and Financing Activities and Other Supplemental Data Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Applicable income taxes Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, Tax Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Class of Stock [Axis] Class of Stock [Axis] Restructuring, impairments and other operating items (See Note 7) Restructuring and Other Expense Restructuring and Other Expense Amortizable intangibles, net of accumulated amortization of $6,523,147 and $6,461,571, respectively Amortizable intangibles, net of accumulated amortization of $6,523,147 and $6,461,571, respectively Net Carrying Amount Intangible Asset, Finite-Lived, after Accumulated Amortization Debt 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values for deferred cash performance awards Payout amount based on meeting target values for deferred cash performance awards Transaction costs Transaction costs [Member] Transaction costs Statement [Line Items] Statement [Line Items] Total assets Assets Other, net Other adjustment to equity (deficiency) Other adjustment to equity (deficiency) Common Unit, Outstanding Common Unit, Outstanding Entity [Domain] Entity - Not Default [Domain] Entity [Domain] Cequel Term Loan Facility Cequel Term Loan Facility [Member] Cequel Term Loan Facility [Member] Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Broadband Broadband [Member] Broadband [Member] Members' Equity Common Unit, Issued Unsub Group Credit Facility Unsub Group Credit Facility [Member] Unsub Group Credit Facility Class A-2 management incentive units Class A-2 management incentive units [Member] Class A-2 management incentive units SHARE-BASED COMPENSATION Share-Based Payment Arrangement [Text Block] Cash 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Notes due April 15, 2027 [Member] CSC Holdings 5.5% Notes due April 15, 2027 [Member] Money market funds (a) Money Market Funds [Member] Revolving Credit Facility Revolving Credit Facility [Member] Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Common stock, shares outstanding (in shares) Common Stock, Shares, Outstanding Diluted income (loss) per share attributable to Optimum Communications, Inc. stockholders Earnings Per Share, Diluted Entity Current Reporting Status Entity Current Reporting Status Net cash provided by financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Prepaid expenses and other assets Increase (Decrease) in Prepaid Expense and Other Assets Liabilities: Liabilities, Fair Value Disclosure [Abstract] Capitalized interest Interest Costs Capitalized Litigation Case [Domain] Litigation Case [Domain] Adjustments to reconcile net loss to net cash provided by operating activities: Adjustments to reconcile net loss to net cash provided by operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Document and Entity Information [Abstract] Document and Entity Information [Abstract] Share-based Payment Arrangement [Abstract] Share-Based Payment Arrangement [Abstract] Condensed Financial Information Disclosure [Abstract] Cash flows from financing activities: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Property, plant and equipment, net of accumulated depreciation of $10,133,696 and $9,835,958, respectively Property, plant and equipment, net of accumulated depreciation of $10,133,696 and $9,835,958, respectively Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization Line of credit facility, remaining borrowing capacity Line of Credit Facility, Remaining Borrowing Capacity Carrying amount of Senior Notes Carrying amount of Senior Notes Carrying amount of Senior Notes Restructuring Cost Activity Schedule of Restructuring Reserve by Type of Cost [Table Text Block] Synthetic LIBOR Rate (one month) Synthetic LIBOR Rate (one month) [Member] Synthetic LIBOR Rate (one month) Intangible Asset, Finite-Lived, Class [Axis] Intangible Asset, Finite-Lived, Class [Axis] News and advertising Advertising and News [Member] Advertising and News revenue Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Granted INTANGIBLE ASSETS Intangible Asset and Goodwill [Text Block] Estimated Fair Value Estimate of Fair Value Measurement [Member] Lightpath Fiber Issuer LLC Series 2026-1, Class A-2 5.597% Notes due 2031 Lightpath Fiber Issuer LLC Series 2026-1, Class A-2 5.597% Notes due 2031 [Member] Lightpath Fiber Issuer LLC Series 2026-1, Class A-2 5.597% Notes due 2031 Interest payable Increase (Decrease) in Interest Payable, Net Notes payable for the purchase of equipment and other assets Notes Issued Cablevision Systems Corp. Cablevision Systems Corp. [Member] Cablevision Systems Corp. [Member] Face Amount of Senior Notes Face Amount of Senior Notes Face Amount of Senior Notes Other, net Other, net Payment for (Proceeds from) Other Investing Activity Debt Instrument, Periodic Payment, Principal Debt Instrument, Periodic Payment, Principal 10.875% Notes due October 15, 2025 CSC Holdings 10.875% Notes due October 15, 2025 [Member] CSC Holdings 10.875% Notes due October 15, 2025 [Member] Condensed Income Statement Condensed Income Statement [Table Text Block] Lightpath credit facility, senior secured and senior notes Lightpath credit facility, senior secured and senior notes [Member] Lightpath credit facility, senior secured and senior notes Distributions to noncontrolling interest Proceeds from (Payments to) Noncontrolling Interests Nonvested Restricted Stock Shares Activity Nonvested Restricted Stock Shares Activity [Table Text Block] Segment Reporting [Table] Segment Reporting [Table] Schedule of Maturities of Long-term Debt Schedule of Maturities of Long-Term Debt 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2017 LTIP 4 Year Award [Member] 2017 LTIP 4 Year Award Outstanding debt Senior Notes Common stock, shares issued (in shares) Common Stock, Shares, Issued CSC Holdings CSC Holdings [Member] CSC Holdings [Member] Non-cash distributions to parent Non-cash distributions to parent Non-cash distributions to parent Treasury Stock, Shares Treasury Stock, Common, Shares Long-Lived Asset, Held-for-Sale, Type [Axis] Long-Lived Asset, Held-for-Sale, Type [Axis] Other Products And Services, Other (including Mobile Equipment) [Member] Products And Services, Other [Member] CSC Holdings 5.750% Notes due January 15, 2030 CSC Holdings 5.750% Notes due January 15, 2030 [Member] CSC Holdings 5.750% Notes due January 15, 2030 Equity Components [Axis] Equity Components [Axis] Other operating expenses (including charges from affiliates of $12,948 and $12,922, respectively) (See Note 13) Other operating expenses, net Other operating expenses (including charges from affiliates of $12,948 and $12,922, 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September 15, 2017 CSC Holdings 8.625% Notes due September 15, 2017 [Member] CSC Holdings 8.625% Notes due September 15, 2017 [Member] Employee Severance [Member] Employee Severance [Member] Long-Lived Assets Held-for-Sale, Name [Domain] Long-Lived Assets Held-for-Sale, Name [Domain] Warner Matter Warner Matter [Member] Warner Matter Synthetic LIBOR Rate (three months) Synthetic LIBOR Rate (three months) [Member] Synthetic LIBOR Rate (three months) Derivative Contract [Domain] Derivative Contract [Domain] Incremental Unsub Group Credit Facility Incremental Unsub Group Credit Facility [Member] Incremental Unsub Group Credit Facility Cablevision Lightpath Cablevision Lightpath [Member] Cablevision Lightpath Secured Fiber Network Revenue Notes Secured Fiber Network Revenue Notes [Member] Secured Fiber Network Revenue Notes Loans Payable Loans Payable [Member] Total liabilities and stockholders' deficiency Liabilities and Equity CSC Holdings 4.125% Notes due December 1, 2030 CSC Holdings 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Amendment [Member] Cablevision Lightpath Term B Loan Refinancing Amendment Other Other awards [Member] Other awards Derivatives Not Designated as Hedging Instruments Not Designated as Hedging Instrument [Member] Beginning balance (in shares) Ending balance (in shares) Non-option equity instruments, outstanding (shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding, Number Depreciation and amortization Depreciation, Depletion and Amortization Secured Overnight Financing Rate (SOFR) Secured Overnight Financing Rate (SOFR) [Member] Net loss Net loss Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Right-of-use assets acquired in exchange for finance lease obligations Right-of-Use Asset Obtained in Exchange for Finance Lease Liability Amount of copyrighted works infringed on Amount of copyrighted works infringed on Amount of copyrighted works infringed on Current Assets: Assets, Current [Abstract] Interest rate swap contracts Derivative Liability Cequel Credit Facilities Cequel Credit Facilities [Member] Cequel Credit Facilities [Member] Senior Notes Senior Notes [Member] Entity Address, Address Line One Entity Address, Address Line One Income tax benefit Income Tax Expense (Benefit) Income tax benefit (expense) Income Tax Expense (Benefit) Programming and other direct costs (including charges from affiliates of $1,149 and $1,598, respectively) (See Note 13) Cost of Product and Service Sold Cost of Product and Service Sold Net increase (decrease) in cash, cash equivalents and restricted cash Net increase (decrease) 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 Defined benefit pension plans Defined benefit pension plans Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax Share-Based Payment Arrangement, Tranche Three Share-Based Payment Arrangement, Tranche Three [Member] Net income (loss) attributable to CSC Holdings, LLC sole member Net loss attributable to CSC Holdings, LLC sole member Net Income (Loss) Attributable to Parent i24 News i24 News [Member] i24 News Carrying amount of Senior Guaranteed Notes Carrying amount of Senior Guaranteed Notes Carrying amount of Senior Guaranteed Notes Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Balance Sheet Location [Axis] Location, Statement of Financial Position, Balance [Axis] CSC Holdings 5.000% Notes due November 15, 2031 CSC Holdings 5.000% Notes due November 15, 2031 [Member] CSC Holdings 5.000% Notes due November 15, 2031 Proceeds related to sale of equipment, net of costs of disposal Proceeds from Sale of Property, Plant, and Equipment Statement [Table] Statement [Table] Share-Based Payment Arrangement, Tranche Two Share-Based Payment Arrangement, Tranche Two [Member] 8.625% Notes due September 15, 2017 Cablevision Holdings 8.625% Notes due September 15, 2017 [Member] Cablevision Holdings 8.625% Notes due September 15, 2017 [Member] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table] Long-term liabilities Liabilities, Other than Long-Term Debt, Noncurrent 2029 Long-Term Debt, Maturities, Repayments of Principal in Rolling Year Four Asset Derivatives: Derivative Asset, Subject to Master Netting Arrangement, before Offset Condensed Balance Sheet Statements, Captions [Line Items] Condensed Balance Sheet Statements, Captions [Line Items] Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Axis] Lightpath Fiber Issuer LLC Series 2026-1, Class B 5.597% Notes due 2031 Lightpath Fiber Issuer LLC Series 2026-1, Class B 5.597% Notes due 2031 [Member] Lightpath Fiber Issuer LLC Series 2026-1, Class B 5.89% Notes due 2031 BASIS OF PRESENTATION Basis of Presentation and Significant Accounting Policies [Text Block]