BASIS OF PRESENTATION	3 Months Ended
Mar. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
BASIS OF PRESENTATION	BASIS OF PRESENTATION The accompanying unaudited condensed consolidated financial statements of Cablevision and CSC Holdings have been prepared in accordance with U.S. generally accepted accounting principles ("GAAP") and with the instructions to Form 10-Q and Article 10 of Regulation S-X for interim financial information. Accordingly, these financial statements do not include all the information and notes required for complete annual financial statements. The interim condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2015. The financial statements as of March 31, 2016 and for the three months ended March 31, 2016 and 2015 presented in this Form 10-Q are unaudited; however, in the opinion of management, such financial statements include all adjustments, consisting solely of normal recurring adjustments, necessary for a fair presentation of the results for the periods presented. The accompanying condensed consolidated financial statements of Cablevision include the accounts of Cablevision and its majority-owned subsidiaries and the accompanying condensed consolidated financial statements of CSC Holdings include the accounts of CSC Holdings and its majority-owned subsidiaries. Cablevision has no business operations independent of its CSC Holdings subsidiary, whose operating results and financial position are consolidated into Cablevision. The condensed consolidated balance sheets and statements of income of Cablevision are essentially identical to the condensed consolidated balance sheets and statements of income of CSC Holdings, with the following significant exceptions: Cablevision has $2,771,096 carrying value of senior notes outstanding at March 31, 2016 (excluding the $611,455 aggregate principal amount of Cablevision notes held by Newsday Holdings) that were issued to third party investors, cash, deferred financing costs and accrued interest related to its senior notes, deferred taxes and accrued dividends on its balance sheet. In addition, CSC Holdings and its subsidiaries have certain intercompany receivables from and payables to Cablevision. Differences between Cablevision's results of operations and those of CSC Holdings primarily include incremental interest expense, interest income, and income tax expense or benefit. CSC Holdings' results of operations include incremental interest income from the Cablevision senior notes held by Newsday Holdings, which is eliminated in Cablevision's results of operations. The combined notes to the condensed consolidated financial statements relate to the Company, which, except as noted, are essentially identical for Cablevision and CSC Holdings. All significant intercompany transactions and balances between Cablevision and CSC Holdings and their respective consolidated subsidiaries are eliminated in both sets of condensed consolidated financial statements. Intercompany transactions between Cablevision and CSC Holdings are not eliminated in the CSC Holdings condensed consolidated financial statements, but are eliminated in the Cablevision condensed consolidated financial statements. The results of operations for the interim periods are not necessarily indicative of the results that might be expected for future interim periods or for the full year ending December 31, 2016. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Recently Adopted Accounting Pronouncements In April 2015, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2015-03, Simplifying the Presentation of Debt Issuance Costs, which requires debt issuance costs to be presented in the balance sheet as a direct deduction from the carrying value of the associated debt liability, consistent with the presentation of a debt discount. In August 2015, the FASB issued ASU No. 2015-15, Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements, which clarifies the treatment of debt issuance costs from line-of-credit arrangements after adoption of ASU No. 2015-03. ASU No. 2015-15 clarifies that the Securities and Exchange Commission staff would not object to an entity deferring and presenting debt issuance costs as an asset and subsequently amortizing the deferred debt issuance costs ratably over the term of the line-of-credit arrangement, regardless of whether there are any outstanding borrowings on the line-of-credit arrangement. ASU No. 2015-03 was adopted by the Company on January 1, 2016 representing a change in accounting principle and was applied retrospectively to all periods presented. Debt issuance costs, net for Cablevision and CSC Holdings of $67,119 and $40,328, respectively, as of December 31, 2015 were reclassified from deferred financing costs and presented as a reduction to debt in the consolidated balance sheets. Cablevision's long-term debt on its consolidated balance sheet as of March 31, 2016 is net of $16,626 of unamortized debt discounts and $63,248 of unamortized deferred financing costs. CSC Holdings' long-term debt on its consolidated balance sheet as of March 31, 2016 is net of $13,626 of unamortized debt discounts and $38,320 of unamortized deferred financing costs. Debt issuance costs, net for Cablevision and CSC Holdings of $7,588 as of December 31, 2015 relating to the Company’s revolving credit facility were not impacted by the adoption of ASU No. 2015-03 and continue to be recorded as long-term assets. In April 2015, the FASB issued ASU No. 2015-05, Intangibles-Goodwill and Other-Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement. ASU No. 2015-05 provides guidance to customers about whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license, then the customer should account for the software license element of the arrangement consistent with the acquisition of other software licenses. If a cloud computing arrangement does not include a software license, the customer should account for the arrangement as a service contract. ASU No. 2015-05 was adopted by the Company on January 1, 2016 and did not have any impact on the Company's condensed consolidated financial statements. In June 2014, the FASB issued ASU No. 2014-12, Compensation - Stock Compensation (Topic 718): Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved After the Requisite Service Period. ASU No. 2014-12 requires that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. Entities may apply the amendments in this ASU either: (a) prospectively to all awards granted or modified after the effective date; or (b) retrospectively to all awards with performance targets that are outstanding as of the beginning of the earliest annual period presented in the financial statements and to all new or modified awards thereafter. ASU No. 2014-12 was adopted by the Company on January 1, 2016 and did not have any impact on the Company’s condensed consolidated financial statements. Recently Issued But Not Yet Adopted Accounting Pronouncements In March 2016, the FASB issued ASU 2016-09, Compensation—Stock Compensation: Improvements to Employee Share-Based Payment Accounting, which provides simplification of income tax accounting for share-based payment awards. The new guidance becomes effective for the Company on January 1, 2017 with early adoption permitted. Amendments related to the timing of when excess tax benefits are recognized, minimum statutory withholding requirements, forfeitures, and intrinsic value will be applied using the modified retrospective transition method. Amendments requiring recognition of excess tax benefits and tax deficiencies in the income statement and the practical expedient for estimating expected term will be applied prospectively. The Company may elect to apply the amendments related to the presentation of excess tax benefits on the statement of cash flows using either a prospective transition method or a retrospective transition method. The Company has not yet completed the evaluation of the effect that ASU No. 2016-09 will have on its consolidated financial statements. In February 2016, the FASB issued ASU 2016-02, Leases, which increases transparency and comparability by recognizing a lessee’s rights and obligations resulting from leases by recording them on the balance sheet as lease assets and lease liabilities. The new guidance becomes effective for the Company on January 1, 2019 with early adoption permitted and will be applied using the modified retrospective method. The Company has not yet completed the evaluation of the effect that ASU No. 2016-02 will have on its consolidated financial statements. In November 2015, the FASB issued ASU No. 2015-17 (Topic 740), Balance Sheet Classification of Deferred Taxes. This ASU amends existing guidance to require the presentation of deferred tax liabilities and assets as noncurrent within a classified statement of financial position. ASU No. 2015-17 may be applied either prospectively to all deferred tax liabilities and assets or retrospectively to all periods presented. This new standard would be effective for the Company beginning January 1, 2017 with early adoption permitted. In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, requiring an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. ASU No. 2014-09 will replace most existing revenue recognition guidance in GAAP when it becomes effective and allows the use of either the retrospective or cumulative effect transition method. In August 2015, the FASB issued ASU No. 2015-14 that approved deferring the effective date by one year so that ASU No. 2014-09 would become effective for the Company on January 1, 2018. The FASB also approved, in July 2015, permitting the early adoption of ASU No. 2014-09, but not before the original effective date for the Company as of January 1, 2017. The Company has not yet completed the evaluation of the effect that ASU No. 2014-09 will have on its consolidated financial statements. Reclassification In connection with the adoption of ASU 2015-03 discussed above, certain reclassifications have been made to the 2015 financial statements to conform to the 2016 presentation.

BASIS OF PRESENTATION

The accompanying unaudited condensed consolidated financial statements of Cablevision and CSC Holdings have been prepared in accordance with U.S. generally accepted accounting principles ("GAAP") and with the instructions to Form 10-Q and Article 10 of Regulation S-X for interim financial information. Accordingly, these financial statements do not include all the information and notes required for complete annual financial statements.

The interim condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2015.

The financial statements as of March 31, 2016 and for the three months ended March 31, 2016 and 2015 presented in this Form 10-Q are unaudited; however, in the opinion of management, such financial statements include all adjustments, consisting solely of normal recurring adjustments, necessary for a fair presentation of the results for the periods presented.

The accompanying condensed consolidated financial statements of Cablevision include the accounts of Cablevision and its majority-owned subsidiaries and the accompanying condensed consolidated financial statements of CSC Holdings include the accounts of CSC Holdings and its majority-owned subsidiaries. Cablevision has no business operations independent of its CSC Holdings subsidiary, whose operating results and financial position are consolidated into Cablevision. The condensed consolidated balance sheets and statements of income of Cablevision are essentially identical to the condensed consolidated balance sheets and statements of income of CSC Holdings, with the following significant exceptions: Cablevision has $2,771,096 carrying value of senior notes outstanding at March 31, 2016 (excluding the $611,455 aggregate principal amount of Cablevision notes held by Newsday Holdings) that were issued to third party investors, cash, deferred financing costs and accrued interest related to its senior notes, deferred taxes and accrued dividends on its balance sheet. In addition, CSC Holdings and its subsidiaries have certain intercompany receivables from and payables to Cablevision. Differences between Cablevision's results of operations and those of CSC Holdings primarily include incremental interest expense, interest income, and income tax expense or benefit. CSC Holdings' results of operations include incremental interest income from the Cablevision senior notes held by Newsday Holdings, which is eliminated in Cablevision's results of operations.

The combined notes to the condensed consolidated financial statements relate to the Company, which, except as noted, are essentially identical for Cablevision and CSC Holdings. All significant intercompany transactions and balances between Cablevision and CSC Holdings and their respective consolidated subsidiaries are eliminated in both sets of condensed consolidated financial statements. Intercompany transactions between Cablevision and CSC Holdings are not eliminated in the CSC Holdings condensed consolidated financial statements, but are eliminated in the Cablevision condensed consolidated financial statements.

The results of operations for the interim periods are not necessarily indicative of the results that might be expected for future interim periods or for the full year ending December 31, 2016.

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Recently Adopted Accounting Pronouncements

In April 2015, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2015-03, Simplifying the Presentation of Debt Issuance Costs, which requires debt issuance costs to be presented in the balance sheet as a direct deduction from the carrying value of the associated debt liability, consistent with the presentation of a debt discount. In August 2015, the FASB issued ASU No. 2015-15, Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements, which clarifies the treatment of debt issuance costs from line-of-credit arrangements after adoption of ASU No. 2015-03. ASU No. 2015-15 clarifies that the Securities and Exchange Commission staff would not object to an entity deferring and presenting debt issuance costs as an asset and subsequently amortizing the deferred debt issuance costs ratably over the term of the line-of-credit arrangement, regardless of whether there are any outstanding borrowings on the line-of-credit arrangement. ASU No. 2015-03 was adopted by the Company on January 1, 2016 representing a change in accounting principle and was applied retrospectively to all periods presented. Debt issuance costs, net for Cablevision and CSC Holdings of $67,119 and $40,328, respectively, as of December 31, 2015 were reclassified from deferred financing costs and presented as a reduction to debt in the consolidated balance sheets.

Cablevision's long-term debt on its consolidated balance sheet as of March 31, 2016 is net of $16,626 of unamortized debt discounts and $63,248 of unamortized deferred financing costs. CSC Holdings' long-term debt on its consolidated balance sheet as of March 31, 2016 is net of $13,626 of unamortized debt discounts and $38,320 of unamortized deferred financing costs.

Debt issuance costs, net for Cablevision and CSC Holdings of $7,588 as of December 31, 2015 relating to the Company’s revolving credit facility were not impacted by the adoption of ASU No. 2015-03 and continue to be recorded as long-term assets.

In April 2015, the FASB issued ASU No. 2015-05, Intangibles-Goodwill and Other-Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement. ASU No. 2015-05 provides guidance to customers about whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license, then the customer should account for the software license element of the arrangement consistent with the acquisition of other software licenses. If a cloud computing arrangement does not include a software license, the customer should account for the arrangement as a service contract. ASU No. 2015-05 was adopted by the Company on January 1, 2016 and did not have any impact on the Company's condensed consolidated financial statements.

In June 2014, the FASB issued ASU No. 2014-12, Compensation - Stock Compensation (Topic 718): Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved After the Requisite Service Period. ASU No. 2014-12 requires that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. Entities may apply the amendments in this ASU either: (a) prospectively to all awards granted or modified after the effective date; or (b) retrospectively to all awards with performance targets that are outstanding as of the beginning of the earliest annual period presented in the financial statements and to all new or modified awards thereafter. ASU No. 2014-12 was adopted by the Company on January 1, 2016 and did not have any impact on the Company’s condensed consolidated financial statements.

Recently Issued But Not Yet Adopted Accounting Pronouncements

In March 2016, the FASB issued ASU 2016-09, Compensation—Stock Compensation: Improvements to Employee Share-Based Payment Accounting, which provides simplification of income tax accounting for share-based payment awards. The new guidance becomes effective for the Company on January 1, 2017 with early adoption permitted. Amendments related to the timing of when excess tax benefits are recognized, minimum statutory withholding requirements, forfeitures, and intrinsic value will be applied using the modified retrospective transition method. Amendments requiring recognition of excess tax benefits and tax deficiencies in the income statement and the practical expedient for estimating expected term will be applied prospectively. The Company may elect to apply the amendments related to the presentation of excess tax benefits on the statement of cash flows using either a prospective transition method or a retrospective transition method. The Company has not yet completed the evaluation of the effect that ASU No. 2016-09 will have on its consolidated financial statements.

In February 2016, the FASB issued ASU 2016-02, Leases, which increases transparency and comparability by recognizing a lessee’s rights and obligations resulting from leases by recording them on the balance sheet as lease assets and lease liabilities. The new guidance becomes effective for the Company on January 1, 2019 with early adoption permitted and will be applied using the modified retrospective method. The Company has not yet completed the evaluation of the effect that ASU No. 2016-02 will have on its consolidated financial statements.

In November 2015, the FASB issued ASU No. 2015-17 (Topic 740), Balance Sheet Classification of Deferred Taxes. This ASU amends existing guidance to require the presentation of deferred tax liabilities and assets as noncurrent within a classified statement of financial position. ASU No. 2015-17 may be applied either prospectively to all deferred tax liabilities and assets or retrospectively to all periods presented. This new standard would be effective for the Company beginning January 1, 2017 with early adoption permitted.

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, requiring an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. ASU No. 2014-09 will replace most existing revenue recognition guidance in GAAP when it becomes effective and allows the use of either the retrospective or cumulative effect transition method. In August 2015, the FASB issued ASU No. 2015-14 that approved deferring the effective date by one year so that ASU No. 2014-09 would become effective for the Company on January 1, 2018. The FASB also approved, in July 2015, permitting the early adoption of ASU No. 2014-09, but not before the original effective date for the Company as of January 1, 2017. The Company has not yet completed the evaluation of the effect that ASU No. 2014-09 will have on its consolidated financial statements.

Reclassification

In connection with the adoption of ASU 2015-03 discussed above, certain reclassifications have been made to the 2015 financial statements to conform to the 2016 presentation.