10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C.  20549

FORM 10-Q

(Mark One)

ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2018

OR

o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Commission File Number	Registrant; State of Incorporation; Address and Telephone Number	IRS Employer Identification No.
001-38126		38-3980194
	Altice USA, Inc.
	Delaware
	1 Court Square West
	Long Island City, New York  11101
	(516) 803-2300

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the

Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes    ý    No o

Indicate by check mark whether the Registrant has submitted electronically and posted on its corporate Website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the Registrants were required to submit and post such files). Yes   ý    No o

Indicate by check mark whether each Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of "large accelerated filer", "accelerated filer", "smaller reporting company", and "emerging growth company" in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer	o	Accelerated filer	o
Non-accelerated filer	ý	Smaller reporting company	o
(Do not check if a smaller reporting company)		Emerging growth company	o

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes o No ý

Number of shares of common stock outstanding as of May 4, 2018: 737,068,966

ALTICE USA, INC. AND SUBSIDIARIES
FORM 10-Q
TABLE OF CONTENTS
PART I. FINANCIAL INFORMATION
		Page
Item 1. Financial Statements of Altice USA, Inc. and Subsidiaries
	Condensed Consolidated Balance Sheets - March 31, 2018 (Unaudited) and December 31, 2017 (Unaudited)	3
	Condensed Consolidated Statements of Operations - Three months ended March 31, 2018 and 2017 (Unaudited)	5
	Condensed Consolidated Statements of Comprehensive Loss - Three months ended March 31, 2018 and 2017 (Unaudited)	6
	Condensed Consolidated Statements of Stockholders’ Equity - Three months ended March 31, 2018 (Unaudited)	7
	Condensed Consolidated Statements of Cash Flows - Three months ended March 31, 2018 and 2017 (Unaudited)	8
	Notes to Condensed Consolidated Financial Statements (Unaudited)	10
Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations		31
Item 3. Quantitative and Qualitative Disclosures About Market Risk		47
Item 4. Controls and Procedures		48
PART II. OTHER INFORMATION
Item 1. Legal Proceedings		49
Item 6. Exhibits		49
SIGNATURES		50

PART I.     FINANCIAL INFORMATION

This Quarterly Report includes statements that express our opinions, expectations, beliefs, plans, objectives, assumptions or projections regarding future events or future results and therefore are, or may be deemed to be, “forward‑looking statements.” These “forward‑looking statements” appear throughout this Quarterly Report and relate to matters such as anticipated future growth in revenues, operating income, cash provided by operating activities and other financial measures. Words such as “expects,” “anticipates,” “believes,” “estimates,” “may,” “will,” “should,” “could,” “seeks,” “potential,” “continue,” “intends,” “plans” and similar words and terms used in the discussion of future operating results, future financial performance and future events identify forward‑looking statements. All of these forward‑looking statements are based on management’s current expectations and beliefs about future events. As with any projection or forecast, they are susceptible to uncertainty and changes in circumstances.

We operate in a highly competitive, consumer and technology driven and rapidly changing business that is affected by government regulation and economic, strategic, technological, political and social conditions. Various factors could adversely affect our operations, business or financial results in the future and cause our actual results to differ materially from those contained in the forward‑looking statements. In addition, important factors that could cause our actual results to differ materially from those in our forward‑looking statements include:

• competition for broadband, pay television and telephony customers from existing competitors (such as broadband communications companies, direct broadcast satellite ("DBS") providers and Internet‑based providers) and new competitors entering our footprint;

• changes in consumer preferences, laws and regulations or technology that may cause us to change our operational strategies;

• increased difficulty negotiating programming agreements on favorable terms, if at all, resulting in increased costs to us and/or the loss of popular programming;

• increasing programming costs and delivery expenses related to our products and services;

• our ability to achieve anticipated customer and revenue growth, to successfully introduce new products and services and to implement our growth strategy;

• our ability to complete our capital investment plans on time and on budget, including our plan to build a fiber-to-the-home ("FTTH") network, and deploy Altice One, our new home communications hub;

• our ability to develop and deploy mobile voice and data services pursuant to the agreement we entered into with Sprint in the fourth quarter of 2017;

• the effects of economic conditions or other factors which may negatively affect our customers’ demand for our products and services;

• the effects of industry conditions;

• demand for advertising on our cable systems;

• our substantial indebtedness and debt service obligations;

• adverse changes in the credit market;

• changes as a result of any tax reforms that may affect our business;

• financial community and rating agency perceptions of our business, operations, financial condition and the industries in which we operate;

• the restrictions contained in our financing agreements;

• our ability to generate sufficient cash flow to meet our debt service obligations;

• fluctuations in interest rates which may cause our interest expense to vary from quarter to quarter;

• technical failures, equipment defects, physical or electronic break‑ins to our services, computer viruses and similar problems;

1

• the disruption or failure of our network, information systems or technologies as a result of computer hacking, computer viruses, “cyber‑attacks,” misappropriation of data, outages, natural disasters and other material events;

• our ability to obtain necessary hardware, software, communications equipment and services and other items from our vendors at reasonable costs;

• our ability to effectively integrate acquisitions and to maximize expected operating efficiencies from our acquisitions or as a result of the transactions, if any;

• significant unanticipated increases in the use of bandwidth‑intensive Internet‑based services;

• the outcome of litigation, government investigations and other proceedings;

• our ability to successfully operate our business following the completion of our separation from Altice N.V., and

• other risks and uncertainties inherent in our cable and other broadband communications businesses and our other businesses, including those listed under the caption “Risk Factors” in the Company's Annual Report on Form 10-K filed with the Securities and Exchange Commission ("SEC") on March 6, 2018 (the "Annual Report")

These factors are not necessarily all of the important factors that could cause our actual results to differ materially from those expressed in any of our forward‑looking statements. Other unknown or unpredictable factors could cause our actual results to differ materially from those expressed in any of our forward‑looking statements.

Given these uncertainties, you are cautioned not to place undue reliance on such forward‑looking statements. The forward‑looking statements are made only as of the date of this Quarterly Report. Except to the extent required by law, we do not undertake, and specifically decline any obligation, to update any forward‑looking statements or to publicly announce the results of any revisions to any of such statements to reflect future events or developments. Comparisons of results for current and any prior periods are not intended to express any future trends or indications of future performance, unless expressed as such, and should only be viewed as historical data.

You should read this Quarterly Report with the understanding that our actual future results, levels of activity, performance and events and circumstances may be materially different from what we expect. We qualify all forward‑looking statements by these cautionary statements.

Certain numerical figures included in this quarterly report have been subject to rounding adjustments. Accordingly, such numerical figures shown as totals in various tables may not be arithmetic aggregations of the figures that precede them.

2

Item 1. Financial Statements

ALTICE USA, INC. AND SUBSIDIARIES CONDENSED CONSOLIDATED BALANCE SHEETS (In thousands)
(Unaudited)
ASSETS	March 31, 2018		December 31, 2017
Current Assets:
Cash and cash equivalents	$	1,427,651	$	329,848
Restricted cash	253		252
Accounts receivable, trade (less allowance for doubtful accounts of $10,481 and $13,420)	330,761		370,765
Prepaid expenses and other current assets	142,366		130,425
Amounts due from affiliates	21,146		19,764
Derivative contracts	9,211		52,545
Total current assets	1,931,388		903,599
Property, plant and equipment, net of accumulated depreciation of $2,983,696 and $2,599,579	5,819,544		6,023,826
Investment securities pledged as collateral	1,467,781		1,720,357
Derivative contracts	63,343		—
Other assets	122,786		57,904
Amortizable customer relationships, net of accumulated amortization of $1,603,142 and $1,409,021	4,367,742		4,561,863
Amortizable trade names, net of accumulated amortization of $624,276 and $588,574	442,807		478,509
Other amortizable intangibles, net of accumulated amortization of $12,972 and $10,978	24,088		26,082
Indefinite-lived cable television franchises	13,020,081		13,020,081
Goodwill	8,019,849		8,019,861
Total assets	$	35,279,409	$	34,812,082

See accompanying notes to condensed consolidated financial statements.

3

ALTICE USA, INC. AND SUBSIDIARIES CONDENSED CONSOLIDATED BALANCE SHEETS (continued) (In thousands, except share and per share amounts)
(Unaudited)
LIABILITIES AND STOCKHOLDERS' EQUITY	March 31, 2018			December 31, 2017
Current Liabilities:
Accounts payable	$	725,625		$	795,128
Accrued liabilities:
Interest	296,400			397,422
Employee related costs	104,824			147,727
Other accrued expenses	318,098			411,988
Amounts due to affiliates	11,078			10,998
Deferred revenue	122,395			111,197
Liabilities under derivative contracts	9,211			52,545
Credit facility debt	53,900			42,650
Senior notes and debentures	1,042,143			507,744
Capital lease obligations	7,699			9,539
Notes payable	69,084			33,424
Total current liabilities	2,760,457			2,520,362
Defined benefit plan obligations	97,908			103,163
Other liabilities	131,565			144,289
Deferred tax liability	4,729,578			4,769,286
Liabilities under derivative contracts	114,319			187,406
Collateralized indebtedness	1,351,271			1,349,474
Credit facility debt	5,636,102			4,600,873
Senior notes and debentures	14,767,823			15,352,688
Capital lease obligations	11,869			12,441
Notes payable	34,003			32,478
Deficit investment in affiliates	12,891			3,579
Total liabilities	29,647,786			29,076,039
Commitments and contingencies
Redeemable equity	234,637			231,290
Stockholders' Equity:
Preferred Stock, $.01 par value, 100,000,000 shares authorized, no shares issued and outstanding	—			—
Class A common stock: $0.01 par value, 4,000,000,000 shares authorized, 246,982,292 issued and outstanding	2,470			2,470
Class B common stock: $0.01 par value, 1,000,000,000 shares authorized, 490,086,674 issued and outstanding	4,901			4,901
Class C common stock: $0.01 par value, 4,000,000,000 shares authorized, no shares issued and outstanding	—			—
Paid-in capital	4,682,646			4,665,229
Retained earnings	713,848			840,636
	5,403,865			5,513,236
Accumulated other comprehensive loss	(8,420		)	(10,022		)
Total stockholders' equity	5,395,445			5,503,214
Noncontrolling interest	1,541			1,539
Total stockholders' equity	5,396,986			5,504,753
	$	35,279,409		$	34,812,082

See accompanying notes to condensed consolidated financial statements.

4

ALTICE USA, INC. AND SUBSIDIARIES CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (In thousands, except per share amounts) (Unaudited)
	Three Months Ended March 31,
	2018			2017
Revenue (including revenue from affiliates of $125 and $141, respectively) (See Note 14)	$	2,329,714		$	2,302,259
Operating expenses:
Programming and other direct costs (including charges from affiliates of $1,154 and $735, respectively) (See Note 14)	787,361			758,352
Other operating expenses (including charges from affiliates of $7,994 and $7,298, respectively) (See Note 14)	583,023			608,144
Restructuring and other expense	3,587			76,929
Depreciation and amortization (including impairments)	642,705			608,724
	2,016,676			2,052,149
Operating income	313,038			250,110
Other income (expense):
Interest expense (including interest expense to affiliates and related parties of$47,588 in 2017) (See Note 14)	(377,258		)	(433,294		)
Interest income	3,103			232
Gain (loss) on investments and sale of affiliate interests, net	(248,602		)	131,658
Gain (loss) on derivative contracts, net	168,352			(71,044		)
Gain (loss) on interest rate swap contracts	(31,922		)	2,342
Loss on extinguishment of debt and write-off of deferred financing costs	(4,705		)	—
Other expense, net	(11,658		)	(2,100		)
	(502,690		)	(372,206		)
Loss before income taxes	(189,652		)	(122,096		)
Income tax benefit	60,703			45,908
Net loss	(128,949		)	(76,188		)
Net income attributable to noncontrolling interests	(2		)	(237		)
Net loss attributable to Altice USA, Inc. stockholders	$	(128,951	)	$	(76,425	)
Basic and diluted net loss per share	$	(0.17	)	$	(0.12	)
Basic and diluted weighted average common shares (in thousands)	737,069			649,525

See accompanying notes to condensed consolidated financial statements.

5

ALTICE USA, INC. AND SUBSIDIARIES CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (In thousands) (Unaudited)
	Three Months Ended March 31,
	2018			2017
Net loss	$	(128,949	)	$	(76,188	)
Other comprehensive income (loss):
Defined benefit pension plans:
Unrecognized actuarial gain	4,551			—
Applicable income taxes	(1,228		)	—
Unrecognized gain arising during period, net of income taxes	3,323			—
Settlement losses included in other expense, net	606			—
Applicable income taxes	(164		)	—
Settlement losses included in other expense, net, net of income taxes	442			—
Other comprehensive gain	3,765			—
Comprehensive loss	(125,184		)	(76,188		)
Comprehensive income attributable to noncontrolling interests	(2		)	(237		)
Comprehensive loss attributable to Altice USA, Inc. stockholders	$	(125,186	)	$	(76,425	)

See accompanying notes to condensed consolidated financial statements.

6

ALTICE USA, INC. AND SUBSIDIARIES CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (In thousands) (Unaudited)
	Class A Common Stock		Class B Common Stock		Paid-in Capital			Retained Earnings			Accumulated Other Comprehensive Income (loss)			Total Stockholders' Equity			Non-controlling Interest		Total Equity
Balance at January 1, 2018, as reported	$	2,470	$	4,901	$	4,642,128		$	854,824		$	(10,022	)	$	5,494,301		$	1,539	$	5,495,840
Impact of change in accounting policies (See Note 3)	—		—		—			12,666			—			12,666			—		12,666
Impact of ATS Acquisition (See Note 3)	—		—		23,101			(26,854		)	—			(3,753		)	—		(3,753		)
Balance at January 1, 2018, as adjusted	2,470		4,901		4,665,229			840,636			(10,022		)	5,503,214			1,539		5,504,753
Net loss attributable to stockholders	—		—		—			(128,951		)	—			(128,951		)	—		(128,951		)
Net income attributable to noncontrolling interests	—		—		—			—			—			—			2		2
Pension liability adjustments, net of income taxes	—		—		—			—			3,765			3,765			—		3,765
Share-based compensation expense	—		—		21,623			—			—			21,623			—		21,623
Change in fair value of redeemable equity	—		—		(3,347		)	—			—			(3,347		)	—		(3,347		)
Other changes to equity	—		—		(859		)	—			—			(859		)	—		(859		)
Adoption of ASU No. 2018-02	—		—		—			2,163			(2,163		)	—			—		—
Balance at March 31, 2018	$	2,470	$	4,901	$	4,682,646		$	713,848		$	(8,420	)	$	5,395,445		$	1,541	$	5,396,986

See accompanying notes to condensed consolidated financial statements.

7

ALTICE USA, INC. AND SUBSIDIARIES CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (In thousands) (Unaudited)
	Three Months Ended March 31,
	2018			2017
Cash flows from operating activities:
Net loss	$	(128,949	)	$	(76,188	)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization (including impairments)	642,705			608,724
Equity in net loss of affiliates	10,442			2,757
Loss (gain) on investments and sale of affiliate interests, net	248,602			(131,658		)
Loss (gain) on derivative contracts, net	(168,352		)	71,044
Loss on extinguishment of debt and write-off of deferred financing costs	4,705			—
Amortization of deferred financing costs and discounts (premiums) on indebtedness	16,950			1,812
Settlement loss related to pension plan	606			—
Share-based compensation expense	21,623			7,848
Deferred income taxes	(65,833		)	(52,184		)
Provision for doubtful accounts	13,500			15,694
Change in assets and liabilities, net of effects of acquisitions and dispositions:
Accounts receivable, trade	25,207			34,707
Other receivables	(28,759		)	—
Prepaid expenses and other assets	9,609			(10,113		)
Amounts due from and due to affiliates	(1,465		)	(131,564		)
Accounts payable	11,297			147,999
Accrued liabilities	(224,787		)	(253,707		)
Deferred revenue	11,929			11,257
Liabilities related to interest rate swap contracts	31,922			(2,342		)
Net cash provided by operating activities	430,952			244,086
Cash flows from investing activities:
Payment for acquisition, net of cash acquired	(28,940		)	(43,608		)
Sale of affiliate interests	(3,537		)	—
Capital expenditures	(257,615		)	(257,427		)
Proceeds related to sale of equipment, including costs of disposal	965			596
Increase in other investments	(2,500		)	(550		)
Additions to other intangible assets	—			(183		)
Net cash used in investing activities	(291,627		)	(301,172		)
See accompanying notes to condensed consolidated financial statements.

8

ALTICE USA, INC. AND SUBSIDIARIES CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (continued) (In thousands)
	Three Months Ended March 31,
	2018			2017
Cash flows from financing activities:
Proceeds from credit facility debt, net of discounts	$	1,642,500		$	225,000
Repayment of credit facility debt	(610,663		)	(183,288		)
Issuance of senior notes and debentures	1,000,000			—
Proceeds from collateralized indebtedness	—			156,136
Repayment of collateralized indebtedness and related derivative contracts	—			(150,084		)
Redemption of senior notes, including premiums and fees	(1,057,019		)	—
Proceeds from notes payable	6,812			—
Principal payments on capital lease obligations	(3,067		)	(4,207		)
Additions to deferred financing costs	(19,225		)	(1,290		)
Other	(859		)	—
Net cash provided by financing activities	958,479			42,267
Net increase (decrease) in cash and cash equivalents	1,097,804			(14,819		)
Cash, cash equivalents and restricted cash at beginning of year	330,100			503,093
Cash, cash equivalents and restricted cash at end of period	$	1,427,904		$	488,274

See accompanying notes to condensed consolidated financial statements.

9

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except share and per share amounts)

(Unaudited)

NOTE 1.    DESCRIPTION OF BUSINESS AND RELATED MATTERS

The Company and Related Matters

Altice USA, Inc. ("Altice USA" or the "Company") was incorporated in Delaware on September 14, 2015. As of March 31, 2018, Altice USA is majority‑owned by Altice N.V., a public company with limited liability (naamloze vennootshcap) under Dutch law. Upon the completion of the Altice N.V. distribution discussed below, the Company will no longer be majority-owned by Altice N.V.

The Company provides broadband communications and video services in the United States. It delivers broadband, pay television, telephony services, proprietary content and advertising services to residential and business customers.

Altice N.V., through a subsidiary, acquired Cequel Corporation ("Cequel" or "Suddenlink") on December 21, 2015 and Cequel was contributed to Altice USA on June 9, 2016. Altice USA acquired Cablevision Systems Corporation ("Cablevision" or "Optimum") on June 21, 2016.

The Company classifies its operations into two reportable segments: Cablevision, which operates in the New York metropolitan area, and Cequel, which principally operates in markets in the south‑central United States.

The accompanying condensed combined consolidated financial statements ("condensed consolidated financial statements") include the accounts of the Company and all subsidiaries in which the Company has a controlling interest and gives effect to the ATS Acquisition discussed below on a combined basis. All significant inter-company accounts and transactions have been eliminated in consolidation.

The accompanying condensed consolidated operating results for the three months ended March 31, 2017 reflect the retrospective adoption of Accounting Standards Update ("ASU") No. 2014-09, Revenue from Contracts with Customers and ASU No. 2017‑07 Compensation-Retirement Benefits (Topic 715). See Note 3 for further details of the impact on the Company's historical financial statements.

In June 2017, the Company completed its initial public offering ("IPO") of 71,724,139 shares of its Class A common stock. The Company’s Class A common stock began trading on June 22, 2017, on the New York Stock Exchange under the symbol "ATUS".

Acquisition of Altice Technical Services US Corp

ATS was formed in 2017 to provide network construction and maintenance services and commercial and residential installations, disconnections, and maintenance. The Company believes the services it receives from ATS are of higher quality and at a lower cost than the Company could achieve without ATS, including for the construction of its new fiber-to-the home ("FTTH") network.

During the second quarter of 2017, a substantial portion of the Company's technical workforce at the Cablevision segment either accepted employment with ATS or became employees of ATS and ATS commenced operations and began to perform services for the Company. A substantial portion of the Cequel segment technical workforce became employees of ATS in December 2017.

In January 2018, the Company acquired 70% of the equity interests in Altice Technical Services US Corp. ("ATS") for $1.00 (the "ATS Acquisition") and the Company became the owner of 100% of the equity interests in ATS in March 2018. ATS was previously owned by Altice N.V. and a member of ATS's management through a holding company. As the acquisition is a combination of businesses under common control, the Company combined the results of operations and related assets and liabilities of ATS for all periods since its formation. See Note 3 for the impact of the ATS Acquisition on the Company's condensed consolidated balance sheet as of December 31, 2017.

Altice N.V. Distribution

On January 8, 2018, Altice N.V. announced plans for the separation of the Company from Altice N.V. Altice N.V. will distribute substantially all of its equity interest in the Company through a distribution in kind to holders of Altice N.V.'s common shares A and common shares B (the “Distribution”). Following the Distribution, Altice N.V. will no longer own a controlling equity interest in the Company, and the Company will operate independently from Altice N.V.

10

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (continued)

(Dollars in thousands, except share and per share amounts)

(Unaudited)

The implementation of the Distribution is expected to be subject to certain conditions precedent being satisfied or waived. Although Altice N.V. and the Company have not yet negotiated the final terms of the Distribution and related transactions, the Company expects that the following will be conditions to the Distribution:

• Approval of Altice N.V. shareholders of (i) the distribution in kind and (ii) the board resolution approving the change in identity and character of the business of Altice N.V. resulting from the Distribution;

• Receipt of certain U.S. regulatory approvals, which could take up to 180 days;

• The Registration Statement filed on January 8, 2018 being declared effective by the U.S. Securities and Exchange Commission (the ‘‘Commission’’);

• The entry into the Master Separation Agreement and the entry into, amendments to or termination of various arrangements between Altice N.V. and the Company, such as a license to use the Altice brand, the stockholders’ agreement among Altice USA, Altice N.V. and certain other parties and the management agreement pursuant to which the Company pays a quarterly management fee to Altice N.V.; and

• The declaration and payment of a one-time $1.5 billion dividend to Altice USA stockholders as of a record date prior to the Distribution (the ‘‘Pre-Distribution Dividend’’).

Prior to Altice N.V.'s announcement of the Distribution, the Board of Directors of Altice USA, acting through its independent directors, approved in principle the payment of the Pre-Distribution Dividend to all shareholders immediately prior to completion of the separation. Formal approval of the Pre-Distribution Dividend and setting of a record date are expected to occur in the second quarter of 2018. The payment of the Pre-Distribution Dividend will be funded with available Cablevision revolving facility capacity and available cash from new financings, completed in January 2018, at CSC Holdings LLC, a wholly-owned subsidiary of Cablevision. In addition, the Board of Directors of Altice USA has authorized a share repurchase program of $2.0 billion, effective following completion of the separation.

In connection with the Distribution, it is expected that the Management Advisory and Consulting Services Agreement with Altice N.V. which provides certain consulting, advisory and other services will be terminated. Compensation under the terms of the agreement is an annual fee of $30,000 paid by the Company.

NOTE 2.    SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

The accompanying unaudited condensed consolidated financial statements of the Company 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, 2017.

The financial statements presented in this report are unaudited; however, in the opinion of management, such financial statements include all adjustments, consisting of normal recurring adjustments, necessary for a fair presentation of the results for the periods presented.

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, 2018.

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 revenue and expenses during the reporting period.  Actual results could differ from those estimates.

Recently Adopted Accounting Pronouncements

In February 2018, the FASB issued ASU No. 2018-02, Income Statement—Reporting Comprehensive Income (Topic 220) Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. The primary provision of ASU No. 2018-02 allows for the reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act. ASU No. 2018-02 also requires certain disclosures

11

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (continued)

(Dollars in thousands, except share and per share amounts)

(Unaudited)

about stranded tax effects. ASU No. 2018‑02 is effective for the Company on January 1, 2019, with early adoption permitted and will be applied either in the period of adoption or retrospectively to each period (or periods) in which the effect of the change in the U.S. federal corporate income tax rate in the Tax Cuts and Jobs Act is recognized. The Company elected to adopt ASU No. 2018-02 during the first quarter of 2018. The adoption resulted in the reclassification of stranded tax amounts of $2,163 associated with net unrecognized losses from the Company's pension plans from accumulated other comprehensive loss to retained earnings.

In May 2017, the FASB issued ASU No. 2017‑09, Compensation- Stock Compensation (Topic 718). ASU No. 2017‑09 provides clarity and guidance on which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting in Topic 718. ASU No. 2017‑09 was adopted by the Company on January 1, 2018 and had no impact to the Company's condensed consolidated financial statements.

In March 2017, the FASB issued ASU No. 2017‑07 Compensation-Retirement Benefits (Topic 715). ASU No. 2017‑07 requires that an employer disaggregate the service cost component from the other components of net benefit cost. It also provides guidance on how to present the service cost component and the other components of net benefit cost in the income statement and what component of net benefit cost is eligible for capitalization. ASU No. 2017‑07 was adopted by the Company on January 1, 2018 and was applied retrospectively. As a result of the adoption, the Company reclassified the non-service cost components of the Company's pension expense for the three months ended March 31, 2017 from other operating expenses to other income (expense), net. The Company elected to apply the practical expedient which allowed it to reclassify amounts disclosed previously in the benefits plan note as the basis for applying retrospective presentation for comparative periods, as the Company determined it was impracticable to disaggregate the cost components for amounts capitalized and amortized in those periods. See Note 3 for information on the impact of the adoption of ASU No. 2017-07.

In January 2017, the FASB issued ASU No. 2017‑01, Business Combinations (Topic 805), Clarifying the Definition of a Business, which amends Topic 805 to interpret the definition of a business by adding guidance to assist in evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The Company adopted the new guidance on January 1, 2018 and had no impact to the Company's condensed consolidated financial statements.

In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments - Overall (Subtopic 825-10), Recognition and Measurement of Financial Assets and Financial Liabilities.  ASU No. 2016-01 modifies how entities measure certain equity investments and also modifies the recognition of changes in the fair value of financial liabilities measured under the fair value option. Entities will be required to measure equity investments that do not result in consolidation and are not accounted for under the equity method at fair value and recognize any changes in fair value in net income. For financial liabilities measured using the fair value option, entities will be required to record changes in fair value caused by a change in instrument-specific credit risk (own credit risk) separately in other comprehensive income. ASU No. 2016-01 was adopted by the Company on January 1, 2018 and had no impact to the Company's condensed consolidated financial statements.

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers ("ASC 606"), 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. ASC 606 replaced most existing revenue recognition guidance in GAAP and allowed the use of either the retrospective or cumulative effect transition method.

In December 2016, the FASB issued ASU No. 2016-20, Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers, in order to clarify the Codification and to correct any unintended application of the guidance. The amendments in this update affected the guidance in ASC 606. ASC 606 was adopted by the Company on January 1, 2018 on a full retrospective basis, which required the Company to reflect the impact of the updated guidance for all periods presented. The adoption of ASC 606 did not have a material impact on the Company’s financial position or results of operations. See Note 3 for information on the impact of the adoption of ASC 606.

In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments which clarifies how entities should classify certain cash receipts and cash payments on the statement of cash flows. ASU No. 2016-15 also clarifies how the predominance principle should be applied when cash receipts and cash payments have aspects of more than one class of cash flows. The Company adopted the new guidance on January 1, 2018 and had no impact to the Company's condensed consolidated financial statements.

12

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (continued)

(Dollars in thousands, except share and per share amounts)

(Unaudited)

Recently Issued But Not Yet Adopted Accounting Pronouncements

In January 2017, the FASB issued ASU No. 2017‑04, Intangibles-Goodwill and Other (Topic 350). ASU No. 2017‑04 simplifies the subsequent measurement of goodwill by removing the second step of the two‑step impairment test. The amendment requires an entity to perform its annual, or interim goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity still has the option to perform the qualitative assessment for a reporting unit to determine if the quantitative impairment test is necessary. ASU No. 2017‑04 becomes effective for the Company on January 1, 2020 with early adoption permitted and will be applied prospectively.

In February 2016, the FASB issued ASU No. 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. The Company has not yet completed the evaluation of the effect that ASU No. 2016-02 will have on its consolidated financial statements.

Reclassifications

Certain reclassifications have been made to the 2017 financial statements to conform to the 2018 presentation.

NOTE 3.    CHANGE IN ACCOUNTING POLICIES AND ATS ACQUISITION

Adoption of ASC 606 - Revenue from Contracts with Customers

On January 1, 2018, the Company adopted the guidance pursuant to ASC 606. The Company elected to apply the guidance on a full retrospective basis, which required the Company to reflect the impact of the updated guidance for all periods presented. The adoption of the guidance resulted in the deferral of certain installation revenue, the deferral of certain commission expenses, and a reduction of revenue due to the reclassification of certain third party giveaways and incentives from operating expense. Additionally, the Company made changes in the composition of revenue resulting from the allocation of value related to bundled services sold to residential customers at a discount.

Installation Services Revenue

Pursuant to ASC 606, the Company's installation services revenue is deferred and recognized over the benefit period. For residential customers, the benefit period is less than one year. For business and wholesale customers, the benefit period is the contract term. Prior to the adoption of ASC 606, the Company recognized installation services revenue for residential and small and medium-sized business ("SMB") customers when installations were completed. As a result of the deferral of installation services revenue for residential and SMB customers, the Company recognized contract liabilities of $6,978 and recorded a cumulative effect adjustment of $5,093 (net of tax of $1,885) to retained earnings. The accounting for installation services revenue related to business and wholesale customers has not changed.

Commission Expenses

Pursuant to ASC 606, the Company defers commission expenses related to obtaining a contract with a customer when the expected period of benefit is greater than one year and amortizes these costs over the average contract term. For commission expenses related to customer contracts with a term of one year or less, the Company is utilizing the practical expedient and is recognizing the costs when incurred.  Prior to the adoption of ASC 606, the Company recognized commission expenses related to the sale of its services when incurred. As a result of the change in the timing of recognition of these commission expenses, the Company recognized contract assets of $24,329 and recorded a cumulative effect adjustment of $17,759 (net of tax of $6,570) to retained earnings.

Third Party Product Giveaways and Incentives

When the Company acts as the agent in providing certain product giveaways or incentives, revenue is recorded net of the costs of the giveaways and incentives. For the three months ended March 31, 2017, costs of $3,417 for the giveaways and incentives recorded in other operating expense have been reclassified to revenue.

Bundled Services

The Company provides bundled services at a discounted rate to its customers. Under ASC 606, revenue should be allocated to separate performance obligations within a bundled offering based on the relative stand-alone selling price of each service within the bundle.In connection with the adoption of ASC 606, the Company revised the amounts

13

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (continued)

(Dollars in thousands, except share and per share amounts)

(Unaudited)

allocated to each performance obligation within its bundled offerings which reduced previously reported revenue for telephony services and increased previously reported revenue allocated to pay television and broadband services.

Adoption of ASU No. 2017-07 - Compensation-Retirement Benefits (Topic 715)

On January 1, 2018, the Company adopted the guidance pursuant to ASU No. 2017‑07. ASU No. 2017‑07 requires that an employer disaggregate the service cost component from the other components of net benefit cost. In connection with the adoption of ASU No. 2017‑07, the Company retroactively reclassified certain pension costs from other operating expenses to other income (expense), net. The adoption of ASU No. 2017-07 had no impact on the Company's condensed consolidated balance sheet.

Acquisition of ATS

As discussed in Note 1, the Company completed the ATS Acquisition in the first quarter of 2018. ATS was previously owned by Altice N.V. and a member of ATS's management through a holding company. As the acquisition is a combination of businesses under common control, the Company combined the results of operations and related assets and liabilities of ATS for all periods since the formation of ATS, including goodwill of $23,101, representing the amount previously transferred to ATS.

The following table summarizes the impact of adopting ASC 606 and the impact of the ATS Acquisition on the Company's condensed consolidated balance sheet: 

	December 31, 2017
	As Reported		Impact of ASC 606		Impact of ATS Acquisition			As Adjusted
Cash and cash equivalents	$	273,329	$	—	$	56,519		$	329,848
Other current assets	580,231		14,068		(20,548		)	573,751
Property, plant and equipment, net	6,063,829		—		(40,003		)	6,023,826
Goodwill	7,996,760		—		23,101			8,019,861
Other assets, long-term	19,861,076		10,261		(6,541		)	19,864,796
Total assets	$	34,775,225	$	24,329	$	12,528		$	34,812,082
Current liabilities	$	2,492,983	$	6,978	$	20,401		$	2,520,362
Deferred tax liability, long-term	4,775,115		4,685		(10,514		)	4,769,286
Liabilities, long-term	21,779,997		—		6,394			21,786,391
Total liabilities	29,048,095		11,663		16,281			29,076,039
Redeemable equity	231,290		—		—			231,290
Paid-in capital	4,642,128		—		23,101			4,665,229
Retained earnings	854,824		12,666		(26,854		)	840,636
Total stockholders' equity	5,495,840		12,666		(3,753		)	5,504,753
Total liabilities and stockholders' equity	$	34,775,225	$	24,329	$	12,528		$	34,812,082

14

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (continued)

(Dollars in thousands, except share and per share amounts)

(Unaudited)

The ATS Acquisition did not have an impact on the Company's condensed consolidated statement of operations for the three months ended March 31, 2017. The following table summarizes the impact of adopting ASC 606 and ASU No. 2017-07 on the Company's condensed consolidated statement of operations:

	Three Months Ended March 31, 2017
	As Reported			Impact of ASC 606			Impact of ASU No. 2017-07			As Adjusted
Residential:
Pay TV	$	1,071,361		$	12,517		$	—		$	1,083,878
Broadband	611,769			14,149			—			625,918
Telephony	210,873			(29,912		)	—			180,961
Business services and wholesale	319,591			(171		)	—			319,420
Advertising	83,361			—			—			83,361
Other	8,721			—			—			8,721
Total revenue	2,305,676			(3,417		)	—			2,302,259
Programming and other direct costs	758,352			—			—			758,352
Other operating expenses	613,437			(3,417		)	(1,876		)	608,144
Restructuring and other expense	76,929			—			—			76,929
Depreciation and amortization	608,724			—			—			608,724
Operating income	248,234			—			1,876			250,110
Other expense, net	(370,330		)	—			(1,876		)	(372,206		)
Loss before income taxes	(122,096		)	—			—			(122,096		)
Income tax benefit	45,908			—			—			45,908
Net loss	$	(76,188	)	$	—		$	—		$	(76,188	)

NOTE 4.    NET LOSS PER SHARE ATTRIBUTABLE TO STOCKHOLDERS

Basic net income (loss) per common share attributable to Altice USA stockholders is computed by dividing net income (loss) attributable to Altice USA stockholders by the weighted average number of common shares outstanding during the period.  Diluted income per common share attributable to Altice USA stockholders reflects the dilutive effects of stock options. Diluted net loss per common share attributable to Altice USA stockholders excludes the effects of common stock equivalents as they are anti-dilutive.

The weighted average number of shares used to compute basic and diluted net loss per share for the three months ended March 31, 2017 reflect the retroactive impact of certain organizational transactions that occurred prior to the Company's IPO.

NOTE 5.    REVENUE AND CONTRACT ASSETS

Revenue Recognition

Residential Services

The Company derives revenue through monthly charges to residential customers of its pay television, broadband, and telephony services, including installation services. In addition, the Company derives revenue from digital video recorder ("DVR"), video-on-demand ("VOD"), pay‑per‑view, and home shopping commissions which are reflected in "Residential pay TV" revenues. The Company recognizes pay television, broadband, and telephony revenues as the services are provided to a customer on a monthly basis. Revenue from the sale of bundled services at a discounted rate is allocated to each product based on the standalone selling price of each performance obligation within the bundled offer. The standalone selling price requires judgment and is typically determined based on the current prices at which the separate services are sold by the Company. Installation revenue for the Company's residential services is deferred and recognized over the benefit period, which is estimated to be less than one year. The estimated benefit period takes

15

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (continued)

(Dollars in thousands, except share and per share amounts)

(Unaudited)

into account both quantitative and qualitative factors including the significance of average installation fees to total recurring revenue per customer.

The Company is assessed non-income related taxes by governmental authorities, including franchising authorities (generally under multi-year agreements), and collects such taxes from its customers.  In instances where the tax is being assessed directly on the Company, amounts paid to the governmental authorities are recorded as programming and other direct costs and amounts received from the customers are recorded as revenue. For the three months ended March 31, 2018 and 2017 the amount of franchise fees and certain other taxes and fees included as a component of revenue aggregated $63,830 and $64,986, respectively.

Business and Wholesale Services

The Company derives revenue from the sale of products and services to both large enterprise and SMB customers, including broadband, telephony, networking, and pay television services reflected in "Business services and wholesale" revenues. The Company's business services also include Ethernet, data transport, and IP-based virtual private networks. The Company also provides managed services to businesses, including hosted telephony services (cloud based SIP-based private branch exchange), managed Wi-Fi, managed desktop and server backup and managed collaboration services including audio and web conferencing. The Company also offers fiber-to-the-tower services to wireless carriers for cell tower backhaul and enable wireline communications service providers to connect to customers that their own networks do not reach. The Company recognizes revenues for these services as the services are provided to a customer on a monthly basis.

Substantially all of our SMB customers are billed monthly and large enterprise customers are billed in accordance with the terms of their contracts which is typically also on a monthly basis. Contracts with large enterprise customers typically range from three to five years. Installation revenue related to our large enterprise customers is deferred and recognized over the average contract term. Installation revenue related to SMB customers is deferred and recognized over the benefit period, which is less than a year. The estimated benefit period for SMB customers takes into account both quantitative and qualitative factors including the significance of average installation fees to total recurring revenue per customer.

Advertising

As part of the agreements under which the Company acquires pay television programming, the Company typically receives an allocation of scheduled advertising time during such programming into which the Company's cable systems can insert commercials. In several of the markets in which the Company operates, it has entered into agreements commonly referred to as interconnects with other cable operators to jointly sell local advertising. In some of these markets, the Company represents the advertising sales efforts of other cable operators; in other markets, other cable operators represent the Company. Advertising revenues are recognized when commercials are aired. Arrangements in which the Company controls the sale of advertising and acts as the principal to the transaction, the Company recognizes revenue earned from the advertising customer on a gross basis and the amount remitted to the distributor as an operating expense. Arrangements in which the Company does not control the sale of advertising and acts as an agent to the transaction, the Company recognizes revenue net of any fee remitted to the distributor.

The Company's advanced advertising businesses provide data-driven, audience-based advertising solutions using advanced analytics tools that provide granular measurement of consumer groups, accurate hyper-local ratings and other insights into target audience behavior not available through traditional sample-based measurement services. Revenue earned from the Company's advanced advertising businesses are recognized when services are provided.

Other

Revenues derived from other sources are recognized when services are provided or events occur.

Contract Assets

Incremental costs incurred in obtaining a contract with a customer are deferred and recorded as a contract asset if the period of benefit is expected to be greater than one year. Sales commissions for enterprise and certain SMB customers are deferred and amortized over the average contract term. For sales commission expenses related to residential and SMB customers with a term of one year or less, the Company is utilizing the practical expedient and is recognizing the costs when incurred.  Cost of fulfilling a contract with a customer are deferred and recorded as a contract asset if they

16

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (continued)

(Dollars in thousands, except share and per share amounts)

(Unaudited)

generate or enhance resources of the Company that will be used in satisfying future performance obligations and are expected to be recovered. Installation costs related to residential and SMB customers that are not capitalized as part of the initial deployment of new customer premise equipment are expensed as incurred pursuant to industry-specific guidance.

The following table provides information about contracts assets and contract liabilities related to contracts with customers:

	March 31, 2018		December 31, 2017, as adjusted
Contract assets (a)	$	23,682	$	24,329
Deferred revenue (b)	129,560		117,679

(a) Contract assets include primarily sales commissions for enterprise customers that are deferred and amortized over the average contract term.

(b) Deferred revenue represents payments received from customers for services that have yet to be provided and installation revenue which is deferred and recognized over the benefit period. The majority of the Company's deferred revenue represents payments for services for up to one month in advance from residential and SMB customers which is realized within the following month as services are performed.

A significant portion of our revenue is derived from residential and SMB customer contracts which are month-to month. As such, the amount of revenue related to unsatisfied performance obligations is not necessarily indicative of the future revenue to be recognized from our existing customer base. Contracts with enterprise customers generally range from three to five years, and services may only be terminated in accordance with the contractual terms.

NOTE 6.    SUPPLEMENTAL CASH FLOW INFORMATION

The Company considers the balance of its investment in funds that substantially hold securities that mature within three months or less from the date the fund purchases these securities to be cash equivalents.  The carrying amount of cash and cash equivalents either approximates fair value due to the short-term maturity of these instruments or are at fair value.

The Company's non-cash investing and financing activities and other supplemental data were as follows:

	Three Months Ended March 31,
	2018			2017
Non-Cash Investing and Financing Activities:
Continuing Operations:
Property and equipment accrued but unpaid	$	91,036		$	61,170
Notes payable to vendor	30,237			—
Capital lease obligations	656			—
Supplemental Data:
Cash interest paid	464,763			524,864
Income taxes paid (refunded), net	(1,027		)	1,553

NOTE 7.    RESTRUCTURING COSTS AND OTHER EXPENSE

Restructuring

Beginning in the first quarter of 2016, the Company commenced its restructuring initiatives (the "2016 Restructuring Plan") that are intended to simplify the Company's organizational structure.

17

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (continued)

(Dollars in thousands, except share and per share amounts)

(Unaudited)

The following table summarizes the activity for the 2016 Restructuring Plan during 2018:
	Severance and Other Employee Related Costs			Facility Realignment and Other Costs			Total
Accrual balance at December 31, 2017	$	113,474		$	9,626		$	123,100
Restructuring charges	1,818			(497		)	1,321
Payments and other	(38,469		)	(4,475		)	(42,944		)
Accrual balance at March 31, 2018	$	76,823		$	4,654		$	81,477

The Company recorded restructuring charges of $76,751 for the three months ended March 31, 2017 relating to the 2016 Restructuring Plan.

Cumulative costs to date relating to the 2016 Restructuring Plan amounted to $310,294 and $67,526 for our Cablevision segment and Cequel segments, respectively.

Transaction Costs

The Company incurred transaction costs of $2,266 for the three months ended March 31, 2018 relating to the Distribution discussed in Note 1 and $178 for the three months ended March 31, 2017 related to the acquisition of a business.

NOTE 8.    INTANGIBLE ASSETS

The following table summarizes information relating to the Company's acquired amortizable intangible assets: 

	March 31, 2018							December 31, 2017
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Estimated Useful Lives
Customer relationships	$	5,970,884	$	(1,603,142	)	$	4,367,742	$	5,970,884	$	(1,409,021	)	$	4,561,863	8 to 18 years
Trade names	1,067,083		(624,276		)	442,807		1,067,083		(588,574		)	478,509		2 to 5 years
Other amortizable intangibles	37,060		(12,972		)	24,088		37,060		(10,978		)	26,082		1 to 15 years
	$	7,075,027	$	(2,240,390	)	$	4,834,637	$	7,075,027	$	(2,008,573	)	$	5,066,454

Amortization expense for the three months ended March 31, 2018 and 2017 aggregated $231,817, and $238,019, respectively.

The following table summarizes information relating to the Company's acquired indefinite-lived intangible assets:

	March 31, 2018						December 31, 2017
	Cablevision		Cequel		Total		Cablevision		Cequel		Total
Cable television franchises	$	8,113,575	$	4,906,506	$	13,020,081	$	8,113,575	$	4,906,506	$	13,020,081
Goodwill	5,866,108		2,153,741		8,019,849		5,866,120		2,153,741		8,019,861
Total	$	13,979,683	$	7,060,247	$	21,039,930	$	13,979,695	$	7,060,247	$	21,039,942

The carrying amount of goodwill is presented below:

Gross goodwill as of December 31, 2017, as reported	$	7,996,760
ATS goodwill included in Cablevision segment (See Note 3 for further details)	23,101
Gross goodwill as of December 31, 2017, as adjusted	8,019,861
Adjustment to purchase accounting relating to business acquired in fourth quarter of 2017	(12		)
Net goodwill as of March 31, 2018	$	8,019,849

18

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (continued)

(Dollars in thousands, except share and per share amounts)

(Unaudited)

NOTE 9.    DEBT

The following table provides details of the Company's outstanding credit facility debt:

			March 31, 2018				December 31, 2017
	Maturity Date	Interest Rate	Principal Amount		Carrying Amount (a)		Principal Amount		Carrying Amount (a)
CSC Holdings Restricted Group:
Revolving Credit Facility (b)	$20,000 on October 9, 2020, remaining balance on November 30, 2021	—%	$	—	$	—	$	450,000	$	425,488
Term Loan Facility	July 17, 2025	4.04%	2,977,500		2,960,859		2,985,000		2,967,818
Incremental Term Loan Facility	January 25, 2026	4.28%	1,500,000		1,481,825		—		—
Cequel:
Revolving Credit Facility (c)	$65,000 on November 30, 2021, and remaining balance on April 5, 2023	—	—		—		—		—
Term Loan Facility	July 28, 2025	4.13%	1,255,513		1,247,318		1,258,675		1,250,217
			$	5,733,013	5,690,002		$	4,693,675	4,643,523
Less: Current portion					53,900				42,650
Long-term debt					$	5,636,102			$	4,600,873

(a) The carrying amount is net of the unamortized deferred financing costs and/or discounts/premiums.

(b) At March 31, 2018, $115,973 of the revolving credit facility was restricted for certain letters of credit issued on behalf of the Company and $2,184,027 of the facility was undrawn and available, subject to covenant limitations.

(c) At March 31, 2018, $13,500 of the revolving credit facility was restricted for certain letters of credit issued on behalf of the Company and $336,500 of the facility was undrawn and available, subject to covenant limitations.

In January 2018, CSC Holdings borrowed $150,000 under its revolving credit facility and entered into a new $1,500,000 incremental term loan facility (the "Incremental Term Loan") under its existing CVC Credit Facilities Agreement. The Incremental Term Loan was priced at 99.5% and will mature on January 25, 2026. The Incremental Term Loan is comprised of eurodollar borrowings or alternate base rate borrowings, and bears interest at a rate per annum equal to the adjusted LIBO rate or the alternate base rate, as applicable, plus the applicable margin, where the applicable margin is (i) with respect to any alternate base rate loan, 1.50% per annum and (ii) with respect to any eurodollar loan, 2.50% per annum.

The Company made a voluntary repayment of $600,000 under the CSC Holdings revolving credit facility in January 2018.

On March 22, 2018, Altice US Finance I Corporation, an indirect wholly-owned subsidiary of the Company, entered into a Fourth Amendment to Cequel Credit Agreement (Extension Amendment), by and among the borrower, the Revolving Consent Lenders (as defined in the Fourth Amendment) and JPMorgan Chase Bank, N.A., as administrative agent for the lenders (the “Fourth Amendment”).  The Fourth Amendment amends and supplements the Borrower’s credit agreement, dated as of June 12, 2015, as amended by the first amendment (refinancing amendment), dated as of October 25, 2016, the second amendment (extension amendment), dated as of December 9, 2016, and the third amendment (incremental loan assumption agreement and refinancing amendment), dated as of March 15, 2017, (as so amended and as may be further amended, restated, modified or supplemented from time to time and as further amended by the Fourth Amendment among, inter alios, the borrower, the lenders party thereto and the administrative agent.

The Fourth Amendment extends the maturity date of the revolving loans and/or commitments of the Revolving Consent Lenders to April 5, 2023. The Fourth Amendment and the extended maturity date will not apply to the revolving loans and/or commitments of revolving lenders under the Cequel Credit Agreement that are not Revolving Consent Lenders.

As of March 31, 2018, the Company was in compliance with all of its financial covenants under the CSC Holdings Credit Facilities Agreement and the Cequel Credit Facilities Agreement.

19

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (continued)

(Dollars in thousands, except share and per share amounts)

(Unaudited)

Senior Guaranteed Notes, Senior Secured Notes and Senior Notes and Debentures

The following table summarizes the Company's senior guaranteed notes, senior secured notes and senior notes and debentures:

							March 31, 2018				December 31, 2017
Date Issued	Maturity Date	Interest Rate					Principal Amount		Carrying Amount (a)		Principal Amount		Carrying Amount (a)
CSC Holdings Senior Notes:
February 6, 1998	February 15, 2018	7.875	%	(b)	(f)	(o)	$	—	$	—	$	300,000	$	301,184
July 21, 1998	July 15, 2018	7.625	%	(b)	(f)		500,000		504,213		500,000		507,744
February 12, 2009	February 15, 2019	8.625	%	(c)	(f)		526,000		537,930		526,000		541,165
November 15, 2011	November 15, 2021	6.750	%	(c)	(f)		1,000,000		962,332		1,000,000		960,146
May 23, 2014	June 1, 2024	5.250	%	(c)	(f)		750,000		663,291		750,000		660,601
October 9, 2015	January 15, 2023	10.125	%	(e)			1,800,000		1,778,745		1,800,000		1,777,914
October 9, 2015	October 15, 2025	10.875	%	(e)	(l)		1,684,221		1,661,516		1,684,221		1,661,135
CSC Holdings Senior Guaranteed Notes:
October 9, 2015	October 15, 2025	6.625	%	(e)			1,000,000		987,037		1,000,000		986,717
September 23, 2016	April 15, 2027	5.500	%	(g)			1,310,000		1,304,581		1,310,000		1,304,468
January 29, 2018	February 1, 2028	5.375	%	(n)			1,000,000		991,665		—		—
Cablevision Senior Notes (k):
April 15, 2010	April 15, 2018	7.750	%	(c)	(f)	(o)	—		—		750,000		754,035
April 15, 2010	April 15, 2020	8.000	%	(c)	(f)		500,000		492,795		500,000		492,009
September 27, 2012	September 15, 2022	5.875	%	(c)	(f)		649,024		575,348		649,024		572,071
Cequel and Cequel Capital Senior Notes (l):
Oct. 25, 2012 Dec. 28, 2012	September 15, 2020	6.375	%	(d)	(m)		1,050,000		1,029,364		1,050,000		1,027,493
May 16, 2013 Sept. 9, 2014	December 15, 2021	5.125	%	(d)			1,250,000		1,144,929		1,250,000		1,138,870
June 12, 2015	July 15, 2025	7.750	%	(i)			620,000		604,755		620,000		604,374
Altice US Finance I Corporation Senior Secured Notes (l):
June 12, 2015	July 15, 2023	5.375	%	(h)			1,100,000		1,083,159		1,100,000		1,082,482
April 26, 2016	May 15, 2026	5.500	%	(j)			1,500,000		1,488,306		1,500,000		1,488,024
							$	16,239,245	15,809,966		$	16,289,245	15,860,432
Less: current portion									1,042,143				507,744
Long-term debt									$	14,767,823			$	15,352,688

(a) The carrying amount is net of the unamortized deferred financing costs and/or discounts/premiums.

(b) The debentures are not redeemable by CSC Holdings prior to maturity.

(c) Notes are redeemable at any time at a specified "make-whole" price plus accrued and unpaid interest to the redemption date.

(d) The Company may redeem some or more of all the notes at the redemption price set forth in the relevant indenture, plus accrued and unpaid interest.

(e) The Company may redeem some or all of the 2023 Notes at any time on or after January 15, 2019, and some or all of the 2025 Notes and 2025 Guaranteed Notes at any time on or after October 15, 2020, at the redemption prices set forth in the relevant indenture, plus accrued and unpaid interest, if any.  The Company may also redeem up to 40% of each series of

20

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (continued)

(Dollars in thousands, except share and per share amounts)

(Unaudited)

the Cablevision Acquisition Notes using the proceeds of certain equity offerings before October 15, 2018, at a redemption price equal to 110.125% for the 2023 Notes, 110.875% for the 2025 Notes and 106.625% for the 2025 Guaranteed Notes, in each case plus accrued and unpaid interest. In addition, at any time prior to January 15, 2019, CSC Holdings may redeem some or all of the 2023 Notes, and at any time prior to October 15, 2020, the Company may redeem some or all of the 2025 Notes and the 2025 Guaranteed Notes, at a price equal to 100% of the principal amount thereof, plus a “make whole” premium specified in the relevant indenture plus accrued and unpaid interest.

(f) The carrying value of the notes was adjusted to reflect their fair value on the Cablevision Acquisition Date (aggregate reduction of $52,788).

(g) The 2027 Guaranteed Notes are redeemable at any time on or after April 15, 2022 at the redemption prices set forth in the indenture, plus accrued and unpaid interest, if any.  In addition, up to 40% may be redeemed for each series of the 2027 Guaranteed Notes using the proceeds of certain equity offerings before October 15, 2019, at a redemption price equal to 105.500%, plus accrued and unpaid interest.

(h) Some or all of these notes may be redeemed at any time on or after July 15, 2018, plus accrued and unpaid interest, if any. Up to 40% of the notes may be redeemed using the proceeds of certain equity offerings before July 15, 2018, at a redemption price equal to 105.375%.

(i) Some or all of these notes may be redeemed at any time on or after July 15, 2020, plus accrued and unpaid interest, if any. Up to 40% of the notes may be redeemed using the proceeds of certain equity offerings before July 15, 2018, at a redemption price equal to 107.750%.

(j) Some or all of these notes may be redeemed at any time on or after May 15, 2021, plus accrued and unpaid interest, if any. Up to 40% of the notes may be redeemed using the proceeds of certain equity offerings before May 15, 2019, at a redemption price equal to 105.500%.

(k) The issuers of these notes have no ability to service interest or principal on the notes, other than through any dividends or distributions received from CSC Holdings. CSC Holdings is restricted, in certain circumstances, from paying dividends or distributions to the issuers by the terms of the CVC Credit Facilities Agreement.

(l) The issuers of these notes have no ability to service interest or principal on the notes, other than through any contributions/distributions from Cequel Communications, LLC (an indirect subsidiary of Cequel and the parent of Altice US Finance I). Cequel Communications, LLC is restricted in certain circumstances, from paying dividends or distributions to the issuers by the terms of the Cequel Credit Facilities Agreement.

(m) These notes were repaid in April 2018 with the proceeds from the issuance of new senior notes (see Note 17).

(n) The 2028 Guaranteed Notes are redeemable at any time on or after February 1, 2023 at the redemption prices set forth in the indenture, plus accrued and unpaid interest, if any.  In addition, up to 40% of the original aggregate principal amount of the notes may be redeemed using the proceeds of certain equity offerings before February 1, 2021, at a redemption price equal to 105.375%, plus accrued and unpaid interest.

(o) These notes were repaid in February 2018 with the proceeds from the 2028 Guaranteed Notes (defined below) and with the proceeds from the Incremental Term Loan.

In January 2018, CSC Holdings issued $1,000,000 aggregate principal amount of 5.375% senior guaranteed notes due February 1, 2028 (the "2028 Guaranteed Notes"). The 2028 Guaranteed Notes are senior unsecured obligations and rank pari passu in right of payment with all of the existing and future senior indebtedness, including the existing senior notes and the CVC Credit Facilities and rank senior in right of payment to all of existing and future subordinated indebtedness.

The proceeds from the 2028 Guaranteed Notes, together with proceeds from the Incremental Term Loan (discussed above), borrowings under the CVC revolving credit facility and cash on hand, were used in February 2018 to repay $300,000 principal amount of CSC Holdings' senior notes due in February 2018 and $750,000 principal amount of Cablevision senior notes due in April 2018 and will be used to fund a dividend of $1,500,000 to the Company's stockholders immediately prior to and in connection with the Distribution discussed in Note 1.

The indentures under which the senior notes and debentures were issued contain various covenants.  The Company was in compliance with all of its financial covenants under these indentures as of March 31, 2018.

Notes Payable to Affiliates and Related Parties

On June 21, 2016, in connection with the Cablevision Acquisition, the Company issued notes payable to affiliates and related parties aggregating $1,750,000, of which $875,000 bore interest at 10.75% and matured on December 20, 2023 and $875,000 bore interest at 11% and matured on December 20, 2024.

21

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (continued)

(Dollars in thousands, except share and per share amounts)

(Unaudited)

In connection with the Company's IPO in June 2017, the Company converted the notes payable to affiliates and related parties (together with accrued and unpaid interest of $529 and applicable premium of $513,723) into shares of the Company’s common stock at the IPO price. The premium was recorded as a loss on extinguishment of debt on the Company's statement of operations in the second quarter of 2017. In connection with the conversion of the notes, the Company recorded a credit to paid in capital of $2,264,252 in the second quarter of 2017.

For the three months ended March 31, 2017, the Company recognized $47,588 of interest expense related to these notes prior to their conversion.

Summary of Debt Maturities

The future maturities of debt payable by the Company under its various debt obligations outstanding as of March 31, 2018, including notes payable, collateralized indebtedness (see Note 10), and capital leases, are as follows:

Years Ending December 31,	Cablevision		Cequel		Total
2018	$	581,298	$	14,193	$	595,491
2019	579,587		32,563		612,150
2020	547,517		1,062,715		1,610,232
2021	2,506,407		1,262,725		3,769,132
2022	695,806		12,730		708,536
Thereafter	11,812,663		4,416,240		16,228,903

NOTE 10.    DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS

Prepaid Forward Contracts

The Company has entered into various transactions to limit the exposure against equity price risk on its shares of Comcast Corporation ("Comcast") common stock.  The Company has monetized all of its stock holdings in Comcast through the execution of prepaid forward contracts, collateralized by an equivalent amount of the respective underlying stock.  At maturity, the contracts provide for the option to deliver cash or shares of Comcast stock with a value determined by reference to the applicable stock price at maturity.  These contracts, at maturity, are expected to offset declines in the fair value of these securities below the hedge price per share while allowing the Company to retain upside appreciation from the hedge price per share to the relevant cap price.  

The Company received cash proceeds upon execution of the prepaid forward contracts discussed above which has been reflected as collateralized indebtedness in the accompanying condensed consolidated balance sheets.  In addition, the Company separately accounts for the equity derivative component of the prepaid forward contracts.  These equity derivatives have not been designated as hedges for accounting purposes.  Therefore, the net fair values of the equity derivatives have been reflected in the accompanying condensed consolidated balance sheets as an asset or liability and the net increases or decreases in the fair value of the equity derivative component of the prepaid forward contracts are included in gain (loss) on derivative contracts in the accompanying condensed consolidated statements of operations.

All of the Company's monetization transactions are obligations of its wholly-owned subsidiaries that are not part of the Restricted Group; however, CSC Holdings has provided guarantees of the subsidiaries' ongoing contract payment expense obligations and potential payments that could be due as a result of an early termination event (as defined in the agreements).  If any one of these contracts were terminated prior to its scheduled maturity date, the Company would be obligated to repay the fair value of the collateralized indebtedness less the sum of the fair values of the underlying stock and equity collar, calculated at the termination date.  As of March 31, 2018, the Company did not have an early termination shortfall relating to any of these contracts.

The Company monitors the financial institutions that are counterparties to its equity derivative contracts.  All of the counterparties to such transactions carry investment grade credit ratings as of March 31, 2018.

Interest Rate Swap Contracts

In June 2016, the Company entered into two fixed to floating interest rate swap contracts. One fixed to floating interest rate swap is converting $750,000 from a fixed rate of 1.6655% to six-month LIBO rate and a second tranche of $750,000

22

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (continued)

(Dollars in thousands, except share and per share amounts)

(Unaudited)

from a fixed rate of 1.68% to six-month LIBO rate. The objective of these swaps is to cover the exposure of the 2026 Senior Secured Notes issued by Cequel to changes in the market interest rate. These swap contracts were not designated as hedges for accounting purposes. Accordingly, the changes in the fair value of these interest rate swap contracts are recorded through the statements of operations.

The Company does not hold or issue derivative instruments for trading or speculative purposes.

The following represents the location of the assets and liabilities associated with the Company's derivative instruments within the condensed consolidated balance sheets:

		Asset Derivatives				Liability Derivatives
Derivatives Not Designated as Hedging Instruments	Balance Sheet Location	Fair Value at March 31, 2018		Fair Value at December 31, 2017		Fair Value at March 31, 2018			Fair Value at December 31, 2017
Prepaid forward contracts	Derivative contracts, current	$	9,211	$	52,545	$	(9,211	)	$	(52,545	)
Prepaid forward contracts	Derivative contracts, long-term	63,343		—		(4,495		)	(109,504		)
Interest rate swap contracts	Liabilities under derivative contracts, long-term	—		—		(109,824		)	(77,902		)
		$	72,554	$	52,545	$	(123,530	)	$	(239,951	)

Gain (loss) related to the Company's derivative contracts related to the Comcast common stock for the three months ended March 31, 2018 and 2017 of $168,352 and $(71,044), respectively, are reflected in gain (loss) on derivative contracts, net in the Company's condensed consolidated statement of operations.

For the three months ended March 31, 2018 and 2017, the Company recorded a gain (loss) on investments of $(252,576) and $131,658, respectively, primarily representing the net increase (decrease) in the fair values of the investment securities pledged as collateral. 

For the three months ended March 31, 2018 and 2017, the Company recorded a gain (loss) on interest rate swap contracts of $(31,922) and $2,342, respectively.

NOTE 11.    FAIR VALUE MEASUREMENT

The fair value hierarchy is based on inputs to valuation techniques that are used to measure fair value that are either observable or unobservable.  Observable inputs reflect assumptions market participants would use in pricing an asset or liability based on market data obtained from independent sources while unobservable inputs reflect a reporting entity's pricing based upon their own market assumptions.  The fair value hierarchy consists of the following three levels:

• Level I - Quoted prices for identical instruments in active markets.

• Level II - Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations whose inputs are observable or whose significant value drivers are observable.

• Level III - Instruments whose significant value drivers are unobservable.

The following table presents for each of these hierarchy levels, the Company's financial assets and financial liabilities that are measured at fair value on a recurring basis:

23

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (continued)

(Dollars in thousands, except share and per share amounts)

(Unaudited)

	Fair Value Hierarchy	March 31, 2018		December 31, 2017
Assets:
Money market funds	Level I	$	1,121,432	$	5,949
Investment securities pledged as collateral	Level I	1,467,781		1,720,357
Prepaid forward contracts	Level II	72,554		52,545
Liabilities:
Prepaid forward contracts	Level II	13,706		162,049
Interest rate swap contracts	Level II	109,824		77,902
Contingent consideration related to 2017 acquisitions	Level III	3,233		32,233

The Company's cash equivalents, investment securities and investment securities pledged as collateral are classified within Level I of the fair value hierarchy because they are valued using quoted market prices.

The Company's derivative contracts and liabilities under derivative contracts on the Company's balance sheets are valued using market-based inputs to valuation models.  These valuation models require a variety of inputs, including contractual terms, market prices, yield curves, and measures of volatility.  When appropriate, valuations are adjusted for various factors such as liquidity, bid/offer spreads and credit risk considerations.  Such adjustments are generally based on available market evidence.  Since model inputs can generally be verified and do not involve significant management judgment, the Company has concluded that these instruments should be classified within Level II of the fair value hierarchy.

The fair value of the contingent consideration as of March 31, 2018 related to acquisitions in the first quarter and fourth quarters of 2017 of approximately $1,000 and $2,233, respectively. The estimated amount recorded as of March 31, 2018 is the remaining unpaid contractual amount for the first quarter 2017 acquisition and approximately 51% of the contractual amount for the fourth quarter 2017 acquisition. The fair value of the consideration was estimated based on a probability assessment of attaining the targets as of March 31, 2018.

Fair Value of Financial Instruments

The following methods and assumptions were used to estimate fair value of each class of financial instruments for which it is practicable to estimate:

Credit Facility Debt, Collateralized Indebtedness, Senior Notes and Debentures, Senior Secured Notes, Senior Guaranteed Notes, and Notes Payable

The fair values of each of the Company's debt instruments are based on quoted market prices for the same or similar issues or on the current rates offered to the Company for instruments of the same remaining maturities. The fair value of notes payable is based primarily on the present value of the remaining payments discounted at the borrowing cost.

The carrying values, estimated fair values, and classification under the fair value hierarchy of the Company's financial instruments, excluding those that are carried at fair value in the accompanying condensed consolidated balance sheets, are summarized as follows:

24

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (continued)

(Dollars in thousands, except share and per share amounts)

(Unaudited)

		March 31, 2018				December 31, 2017
	Fair Value Hierarchy	Carrying Amount (a)		Estimated Fair Value		Carrying Amount (a)		Estimated Fair Value
CSC Holdings debt instruments:
Credit facility debt	Level II	$	4,442,684	$	4,477,500	$	3,393,306	$	3,435,000
Collateralized indebtedness	Level II	1,351,271		1,298,060		1,349,474		1,305,932
Senior guaranteed notes	Level II	3,283,283		3,231,825		2,291,185		2,420,000
Senior notes and debentures	Level II	6,108,028		6,797,434		6,409,889		7,221,846
Notes payable	Level II	78,938		76,340		56,956		55,289
Cablevision senior notes:
Senior notes and debentures	Level II	1,068,142		1,172,906		1,818,115		1,931,239
Cequel debt instruments:
Cequel credit facility	Level II	1,247,318		1,255,513		1,250,217		1,258,675
Senior secured notes	Level II	2,571,465		2,580,000		2,570,506		2,658,930
Senior notes	Level II	2,779,048		2,987,700		2,770,737		2,983,615
Notes payable	Level II	24,149		24,149		8,946		8,946
		$	22,954,326	$	23,901,427	$	21,919,331	$	23,279,472

(a) Amounts are net of unamortized deferred financing costs and discounts.

The fair value estimates related to the Company's debt instruments presented above are made at a specific point in time, based on relevant market information and information about the financial instrument.  These estimates are subjective in nature and involve uncertainties and matters of significant judgments and therefore cannot be determined with precision.  Changes in assumptions could significantly affect the estimates.

NOTE 12.    INCOME TAXES

In general, the Company is required to use an estimated annual effective tax rate to measure the income tax expense or benefit recognized in an interim period. The estimated annual effective tax rate is revised on a quarterly basis and therefore may be different from the rate used in a prior interim period. In addition, certain items included in income tax expense as well as the tax impact of certain items included in pretax income from continuing operations must be treated as discrete items. The income tax expense or benefit associated with these discrete items is fully recognized in the interim period in which the items occur.

The Company recorded income tax benefit of $60,703 for the three months ended March 31, 2018, reflecting an effective tax rate of 32%, which has declined compared to previous years primarily as a result of the enactment of the Tax Cuts & Jobs Act in December 2017 which lowered the corporate federal income tax rate from 35% to 21%.

The Company recorded income tax benefit of $45,908 for the three months ended March 31, 2017, reflecting an effective tax rate of 38%. Nondeductible share-based compensation expense resulted in tax expense of $3,140. Absent this item, the effective tax rate for the three months ended March 31, 2017 would have been 40%.

As of March 31, 2018, the Company's federal net operating losses (“NOLs”) were approximately $2,486,000. The utilization of certain pre-merger NOLs of Cablevision and Cequel are limited pursuant to Internal Revenue Code Section 382. The Company does not expect such limitations to impact the ability to utilize the NOLs prior to their expiration.

NOTE 13.    SHARE BASED COMPENSATION

Certain employees of the Company and its affiliates received awards of units in a carry unit plan of Neptune Management LP, an entity which has an ownership interest in the Company. The awards generally vest as follows: 50% on the second anniversary of June 21, 2016 for Cablevision employees or December 21, 2015 for Cequel employees ("Base Date"), 25% on the third anniversary of the Base Date, and 25% on the fourth anniversary of the Base Date.  Neptune Holding US GP LLC, the general partner of Neptune Management LP, has the right to repurchase (or to assign to an affiliate, including the Company, the right to repurchase) vested awards held by employees for sixty days following their termination.  For performance-based awards under the plan, vesting occurs upon achievement or satisfaction of a specified

25

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (continued)

(Dollars in thousands, except share and per share amounts)

(Unaudited)

performance condition. The Company considered the probability of achieving the established performance targets in determining the share-based compensation with respect to these awards at the end of each reporting period.

Beginning on the fourth anniversary of the Base Date, the holders of carry units have an annual opportunity (a sixty day period determined by the administrator of the plan) to sell their units back to Neptune Holding US GP LLC (or affiliate, including the Company, designated by Neptune Holding US GP LLC). Accordingly, the carry units are presented as temporary equity on the consolidated balance sheets at fair value. Adjustments to fair value at each reporting period are recorded in paid-in capital.

The right of Neptune Holding US GP LLC to assign to an affiliate, including the Company, the right to repurchase an employee’s vested units during the sixty-day period following termination, or to satisfy its obligation to repurchase an employee’s vested units during annual60day periods following the fourth anniversary of the Base Date, may be exercised by Neptune Holding US GP LLC in its discretion at the time a repurchase right or obligation arises. The carry unit plan requires the purchase price payable to the employee or former employee, as the case may be, to be paid in cash, a promissory note (with a term of not more than3 yearsand bearing interest at the long-term applicable federal rate under Section 1274(d) of the Internal Revenue Code) or combination thereof, in each case as determined by Neptune Holding US GP LLC in its discretion at the time of the repurchase. Neptune Holding US GP LLC expects that vested units will be redeemed for shares of the Company's Class A common stock upon vesting.

The following table summarizes activity relating to carry units:

	Number of Time Vesting Awards		Number of Performance Based Vesting Awards	Weighted Average Grant Date Fair Value
Balance, December 31, 2017	168,550,001		10,000,000	$	0.71
Forfeited	(3,500,001	)	—	0.86
Balance, March 31, 2018	165,050,000		10,000,000	0.71

The weighted average fair value per unit was $2.50 and $2.10 as of December 31, 2017 and March 31, 2018, respectively. For the three months ended March 31, 2018 and 2017, the Company recognized an expense of $17,501 and $7,848 related to the push down of share-based compensation related to the carry unit plan of which approximately $16,872 and $5,786 related to units granted to employees of the Company and $629 and $2,062 related to employees of Altice N.V. and affiliated companies allocated to the Company.

Stock Option Plan

The following table summarizes activity related to employee stock options for the three months ended March 31, 2018:

	Shares Under Option				Weighted Average Exercise Price Per Share		Weighted Average Remaining Contractual Term (in years)
	Time Vesting		Performance Based Vesting					Aggregate Intrinsic Value (a)
Balance at December 31, 2017	5,110,747		—		$	19.48	9.97	$	8,944
Granted	298,394		39,050		21.22
Forfeited	(103,766	)	(22,314	)	21.81
Balance at March 31, 2018	5,305,375		16,736		$	19.54	9.92	(5,615		)
Options exercisable at March 31, 2018	—		—		—		—	—

(a) The aggregate intrinsic value is calculated as the difference between the exercise price and the closing price of the Company's Class A common stock at the respective date.

26

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (continued)

(Dollars in thousands, except share and per share amounts)

(Unaudited)

The Company recognized share based compensation expense related to employee stock options for the three months ended March 31, 2018 of $4,122.

The following aggregate assumptions were used to calculate the fair values of stock option awards granted during the three months ended March 31, 2018:

Risk-free interest rate	2.64%
Expected life (in years)	6.49
Dividend yield	—%
Volatility	33.86%
Grant date fair value	$7.49

NOTE 14.    AFFILIATE AND RELATED PARTY TRANSACTIONS

Equity Method Investments

In July 2016, the Company completed the sale of a 75% interest in Newsday LLC ("Newsday") to an employee of the Company. The Company retained the remaining 25% ownership interest. Effective July 7, 2016, the operating results of Newsday are no longer consolidated with those of the Company and the Company's 25% interest in the operating results of Newsday is recorded using the equity method.

At March 31, 2018, the Company's 25% investment in Newsday and its 25% interest in i24NEWS, Altice N.V.'s 24/7 international news and current affairs channel aggregated $12,891 and $800, respectively and is included in investments in affiliates on our condensed consolidated balance sheet. The operating results of i24NEWS is also recorded using the equity method. For the three months ended March 31, 2018 and 2017, the Company recorded equity in net loss of Newsday of $9,312 and $1,510, respectively, and equity in net loss of i24NEWS of $1,130 and $1,247, respectively. In April 2018, Altice NV transferred its ownership of i24 US and i24 Europe to the Company for minimal consideration.

Affiliate and Related Party Transactions

As the transactions discussed below were conducted between subsidiaries of Altice N.V. under common control and equity method investees, amounts charged for certain services may not have represented amounts that might have been received or incurred if the transactions were based upon arm's length negotiations.

The following table summarizes the revenue and charges related to services provided to or received from subsidiaries of Altice N.V. and Newsday:

	Three Months Ended March 31,
	2018			2017
Revenue	$	125		$	141
Operating expenses:
Programming and other direct costs	(1,154		)	(735		)
Other operating expenses, net	(7,994		)	(7,298		)
Operating expenses, net	(9,148		)	(8,033		)
Interest expense (a)	—			(47,588		)
Net charges	$	(9,023	)	$	(55,480	)
Capital Expenditures	$	1,626		$	892

(a) In connection with the Company's IPO in June 2017, the Company converted the notes payable to affiliates and related parties into shares of the Company’s common stock at the IPO price.

Revenue

The Company recognized revenue primarily in connection with the sale of advertising to Newsday.

27

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (continued)

(Dollars in thousands, except share and per share amounts)

(Unaudited)

Programming and other direct costs

Programming and other direct costs include costs incurred by the Company for the transport and termination of voice and data services provided by a subsidiary of Altice N.V.

Other operating expenses

A subsidiary of Altice N.V. provides certain executive services, as well as consulting, advisory and other services, including, prior to the IPO, CEO, CFO and COO services, to the Company. Compensation under the terms of the agreement is an annual fee of $30,000 to be paid by the Company. Fees associated with this agreement recorded by the Company amounted to approximately $7,500, for the three months ended March 31, 2018 and 2017. As of June 20, 2017, the CEO, CFO and COO became employees of the Company and the agreement was assigned to Altice N.V. by a subsidiary of Altice N.V. This agreement will be terminated upon the completion of the Distribution discussed in Note 1.

Other operating expenses also include charges for services provided by other subsidiaries of Altice N.V. aggregating $494 and $(202), respectively, net of a credit of $482 for transition services provided to Newsday for the three months ended March 31, 2017.

Capital Expenditures

Capital expenditures include $1,626 and $892, respectively, for equipment purchases and software development services provided by subsidiaries of Altice NV.

Aggregate amounts that were due from and due to related parties are summarized below:

	March 31, 2018		December 31, 2017
Due from:
Altice US Finance S.A. (a)	$	12,951	$	12,951
Newsday (b)	2,558		2,713
Altice Management Americas (b)	1,271		33
i24 News (b)	4,335		4,036
Other Altice N.V. subsidiaries (b)	31		31
	$	21,146	$	19,764
Due to:
Altice Management International (c)	7,500		—
Newsday (b)	33		33
Altice Labs S.A. (c)	1,051		7,354
Other Altice N.V. subsidiaries (c)	2,494		3,611
	$	11,078	$	10,998

(a) Represents interest on senior notes paid by the Company on behalf of the affiliate.

(b) Represents amounts paid by the Company on behalf of the respective related party and for Newsday, the net amounts due from the related party also include charges for certain transition services provided.

(c) Represents amounts due to affiliates for services provided to the Company.

NOTE 15.    COMMITMENTS AND CONTINGENCIES

Legal Matters

Following expiration of the affiliation agreements for carriage of certain Fox broadcast stations and cable networks on October 16, 2010, News Corporation terminated delivery of the programming feeds to Cablevision, and as a result, those stations and networks were unavailable on Cablevision's cable television systems. On October 30, 2010, Cablevision and Fox reached an agreement on new affiliation agreements for these stations and networks, and carriage was restored.

28

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (continued)

(Dollars in thousands, except share and per share amounts)

(Unaudited)

Several purported class action lawsuits alleging breach of contract, unjust enrichment, and consumer fraud and seeking unspecified compensatory damages, punitive damages and attorneys' fees were subsequently filed on behalf of Cablevision's customers seeking recovery for the lack of Fox programming. Those lawsuits were consolidated in an action before the U. S. District Court for the Eastern District of New York, and a consolidated complaint was filed in that court on February 22, 2011. On March 28, 2012, in ruling on Cablevision's motion to dismiss, the Court dismissed all of plaintiffs’ claims, except for breach of contract.  On March 30, 2014, the Court granted plaintiffs’ motion for class certification. The parties have entered into a settlement agreement, which is subject to Court approval. As of December 31, 2017, the Company had an estimated liability associated with a potential settlement totaling $6,000. The amount ultimately paid in connection with the proposed settlement could exceed the amount recorded.

In October 2015, the New York Attorney General began an investigation into whether the major Internet Service Providers in New York State deliver advertised Internet speeds. The Company is cooperating with this investigation and is currently in discussions with the New York Attorney General about resolving the investigation as to the Company, which resolution may involve operational and or financial components. While the Company is unable to predict the outcome of the investigation or these discussions, at this time it does not expect that the outcome will have a material adverse effect on its operations, financial conditions or cash flows.

The Company receives notices from third parties and, in some cases, is named as a defendant in certain lawsuits claiming infringement of various patents relating to various aspects of the Company's businesses.  In certain of these cases other industry participants are also defendants.  In certain of these cases the Company expects that any potential liability would be the responsibility of the Company's equipment vendors pursuant to applicable contractual indemnification provisions.  The Company believes that the claims are without merit and intends to defend the actions vigorously, but is unable to predict the outcome of these matters or reasonably estimate a range of possible loss.

In addition to the matters discussed above, the Company is party to various lawsuits, some involving claims for substantial damages.  Although the outcome of these other matters cannot be predicted and the impact of the final resolution of these other matters on the Company's results of operations in a particular subsequent reporting period is not known, management does not believe that the resolution of these other lawsuits will have a material adverse effect on the financial position of the Company or the ability of the Company to meet its financial obligations as they become due.

NOTE 16.    SEGMENT INFORMATION

The Company classifies its operations into two reportable segments: Cablevision and Cequel. The Company's reportable segments are strategic business units that are managed separately.  The Company evaluates segment performance based on several factors, of which the primary financial measure is business segment Adjusted EBITDA, a non-GAAP measure.  The Company defines Adjusted EBITDA as net income (loss) excluding income taxes, income (loss) from discontinued operations, non-operating other income or expenses, loss on extinguishment of debt and write-off of deferred financing costs, gain (loss) on interest rate swap contracts, gain (loss) on derivative contracts, gain (loss) on investments, interest expense (including cash interest expense), interest income, depreciation and amortization (including impairments), share-based compensation expense or benefit, restructuring expense or credits and transaction expenses.  The Company has presented the components that reconcile Adjusted EBITDA to operating income, an accepted GAAP measure:

	Three Months Ended March 31, 2018						Three Months Ended March 31, 2017
	Cablevision		Cequel		Total		Cablevision		Cequel		Total
Operating income	$	170,693	$	142,345	$	313,038	$	122,044	$	128,066	$	250,110
Share-based compensation	16,172		5,451		21,623		5,082		2,766		7,848
Restructuring and other expense	3,083		504		3,587		58,647		18,282		76,929
Depreciation and amortization (including impairments)	485,364		157,341		642,705		443,176		165,548		608,724
Adjusted EBITDA	$	675,312	$	305,641	$	980,953	$	628,949	$	314,662	$	943,611

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (continued)

(Dollars in thousands, except share and per share amounts)

(Unaudited)

A reconciliation of reportable segment amounts to the Company's condensed consolidated balances are as follows:

	Three Months Ended March 31,
	2018			2017
Operating income for reportable segments	$	313,038		$	250,110
Items excluded from operating income:
Interest expense	(377,258		)	(433,294		)
Interest income	3,103			232
Gain (loss) on investments and sale of affiliate interests, net	(248,602		)	131,658
Gain (loss) on derivative contracts, net	168,352			(71,044		)
Gain (loss) on interest rate swap contracts	(31,922		)	2,342
Loss on extinguishment of debt and write-off of deferred financing costs	(4,705		)	—
Other expense, net	(11,658		)	(2,100		)
Loss before income taxes	$	(189,652	)	$	(122,096	)

The following tables present the composition of revenue by segment:

	Three Months Ended March 31, 2018									Three Months Ended March 31, 2017
	Cablevision		Cequel		Eliminations (a)			Total		Cablevision		Cequel		Total
Residential:
Pay TV	$	763,720	$	269,988	$	—		$	1,033,708	$	802,194	$	281,684	$	1,083,878
Broadband	440,351		261,270		—			701,621		396,333		229,585		625,918
Telephony	135,585		30,453		—			166,038		146,557		34,404		180,961
Business services and wholesale	234,172		98,918		—			333,090		228,544		90,876		319,420
Advertising	74,643		17,068		(4,129		)	87,582		65,132		18,229		83,361
Other	2,823		4,852		—			7,675		3,227		5,494		8,721
Total Revenue	$	1,651,294	$	682,549	$	(4,129	)	$	2,329,714	$	1,641,987	$	660,272	$	2,302,259

(a)     Reflects revenue recognized by Cablevision from the sale of services to Cequel.

Capital expenditures (cash basis) by reportable segment are presented below:

	Three Months Ended March 31,
	2018		2017
Cablevision	$	166,801	$	184,399
Cequel	90,814		73,028
	$	257,615	$	257,427

All revenues and assets of the Company's reportable segments are attributed to or located in the United States.

Total assets by segment are not provided as such amounts are not regularly reviewed by the chief operating decision maker for purposes of decision making regarding resource allocations.

NOTE 17.    SUBSEQUENT EVENT

In April 2018, Cequel Communications Holdings I, LLC and Cequel Capital Corporation each an indirect, wholly owned subsidiary of the Company, issued $1,050,000, aggregate principal amount of 7.5% senior notes due April 1, 2028. The proceeds of these notes were used in April 2018 to redeem the $1,050,000 aggregate principal amount 6.375% senior notes due September 15, 2020.

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Item 2.         Management's Discussion and Analysis of Financial Condition and Results of Operations

All dollar amounts, except per customer and per share data, included in the following discussion, are presented in thousands.

The preparation of our condensed consolidated financial statements requires us to make estimates that affect the reported amounts of assets, liabilities, revenue and expenses, and the related disclosure of contingent assets and contingent liabilities. For a complete discussion of the accounting judgments and estimates that we have identified as critical in the preparation of our condensed consolidated financial statements, please refer to our Management’s Discussion and Analysis of Financial Condition and Results of Operations in our 2017 Annual Report on Form 10-K.

Overview

Our Business

We deliver broadband, pay television, telephony services, proprietary content and advertising services to approximately 4.9 million residential and business customers. Our footprint extends across 21 states through a fiber‑rich broadband network with approximately 8.6 million homes passed as of March 31, 2018. We have two reportable segments: Cablevision and Cequel. Cablevision provides broadband, pay television and telephony services to residential and business customers in and around the New York metropolitan area. Cequel provides broadband, pay television and telephony services to residential and business customers in the south‑central United States, with the majority of its customers located in the ten states of Texas, West Virginia, Louisiana, Arkansas, North Carolina, Oklahoma, Arizona, California, Missouri and Ohio.

Key Factors Impacting Operating Results and Financial Condition

Our future performance is dependent, to a large extent, on the impact of direct competition, general economic conditions (including capital and credit market conditions), our ability to manage our businesses effectively, and our relative strength and leverage in the marketplace, both with suppliers and customers. For more information see “Risk Factors” and “Business-Competition” included in our Annual Report on Form 10-K for the year ended December 31, 2017.

We derive revenue principally through monthly charges to residential subscribers of our pay television, broadband, and telephony services. We also derive revenue from DVR, VOD, pay‑per‑view, installation and home shopping commissions. Our residential pay television, broadband and telephony services accounted for approximately 44%, 30% and 7%, respectively, of our consolidated revenue for the three months ended March 31, 2018. We also derive revenue from the sale of a wide and growing variety of products and services to both large enterprise and SMB customers, including broadband, telephony, networking and pay television services. For the three months ended March 31, 2018, 14% of our consolidated revenue was derived from these business services and wholesale. In addition, we derive revenues from the sale of advertising time available on the programming carried on our cable television systems, which accounted for approximately 4% of our consolidated revenue for the three months ended March 31, 2018. Our other revenue for the three months ended March 31, 2018 accounted for less than 1% of our consolidated revenue.

Revenue is impacted by rate increases, changes in the number of customers to our services, including additional services sold to our existing customers, programming package changes by our pay television customers, speed tier changes by our broadband customers, and acquisitions of cable systems that result in the addition of new subscribers.

Our ability to increase the number of customers to our services is significantly related to our penetration rates.

We operate in a highly competitive consumer‑driven industry and we compete against a variety of broadband, pay television and telephony providers and delivery systems, including broadband communications companies, wireless data and telephony providers, satellite‑delivered video signals, Internet‑delivered video content and broadcast television signals available to residential and business customers in our service areas. Our competitors include AT&T and its DirecTV subsidiary, CenturyLink, DISH Network, Frontier and Verizon. Consumers’ selection of an alternate source of service, whether due to economic constraints, technological advances or preference, negatively impacts the demand for our services. For more information on our competitive landscape, see “Risk Factors” and “Business-Competition” included our Annual Report on Form 10-K for the year ended December 31, 2017.

Our programming costs, which are the most significant component of our operating expenses, have increased and are expected to continue to increase primarily as a result of contractual rate increases and new channel launches. See “-

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Results of Operations” below for more information regarding our key factors impacting our revenues and operating expenses.

Historically, we have made substantial investments in our network and the development of new and innovative products and other service offerings for our customers as a way of differentiating ourselves from our competitors and may continue to do so in the future. We have commenced a five‑year plan to build a fiber-to-the-home ("FTTH") network, which will enable us to deliver more than 10 Gbps broadband speeds across our entire Optimum footprint and part of our Suddenlink footprint. We may incur greater than anticipated capital expenditures in connection with this initiative, fail to realize anticipated benefits, experience delays and business disruptions or encounter other challenges to executing it as planned. See “-Liquidity and Capital Resources-Capital Expenditures” for additional information regarding our capital expenditures.

Acquisition of Altice Technical Services US Corp

As discussed in Note 1 of the Company's condensed consolidated financial statements, the Company completed the ATS Acquisition in January 2018. ATS was previously owned by Altice N.V. and a member of ATS's management through a holding company. As the acquisition is a combination of businesses under common control, the Company combined the results of operations and related assets and liabilities of ATS for all periods since the formation of ATS.

Non-GAAP Financial Measures

We define Adjusted EBITDA, which is a non-GAAP financial measure, as net income (loss) excluding income taxes, income (loss) from discontinued operations, other non-operating income or expenses, loss on extinguishment of debt and write-off of deferred financing costs, gain (loss) on interest rate swap contracts, gain (loss) on derivative contracts, gain (loss) on investments, interest expense (including cash interest expense), interest income, depreciation and amortization (including impairments), share-based compensation expense or benefit, restructuring expense or credits and transaction expenses. We believe Adjusted EBITDA is an appropriate measure for evaluating the operating performance of the Company. Adjusted EBITDA and similar measures with similar titles are common performance measures used by investors, analysts and peers to compare performance in our industry. Internally, we use revenue and Adjusted EBITDA measures as important indicators of our business performance, and evaluate management’s effectiveness with specific reference to these indicators. We believe Adjusted EBITDA provides management and investors a useful measure for period-to-period comparisons of our core business and operating results by excluding items that are not comparable across reporting periods or that do not otherwise relate to the Company’s ongoing operating results. Adjusted EBITDA should be viewed as a supplement to and not a substitute for operating income (loss), net income (loss), and other measures of performance presented in accordance with GAAP. Since Adjusted EBITDA is not a measure of performance calculated in accordance with GAAP, this measure may not be comparable to similar measures with similar titles used by other companies.

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Results of Operations - Altice USA

	Three Months Ended March 31,
	2018			2017
Revenue:
Residential:
Pay TV	$	1,033,708		$	1,083,878
Broadband	701,621			625,918
Telephony	166,038			180,961
Business services and wholesale	333,090			319,420
Advertising	87,582			83,361
Other	7,675			8,721
Total revenue	2,329,714			2,302,259
Operating expenses:
Programming and other direct costs	787,361			758,352
Other operating expenses	583,023			608,144
Restructuring and other expense	3,587			76,929
Depreciation and amortization (including impairments)	642,705			608,724
Operating income	313,038			250,110
Other income (expense):
Interest expense, net	(374,155		)	(433,062		)
Gain (loss) on investments and sale of affiliate interests, net	(248,602		)	131,658
Gain (loss) on derivative contracts, net	168,352			(71,044		)
Gain (loss) on interest rate swap contracts	(31,922		)	2,342
Loss on extinguishment of debt and write-off of deferred financing costs	(4,705		)	—
Other income (loss), net	(11,658		)	(2,100		)
Loss before income taxes	(189,652		)	(122,096		)
Income tax benefit	60,703			45,908
Net loss	(128,949		)	(76,188		)
Net income attributable to noncontrolling interests	(2		)	(237		)
Net loss attributable to Altice USA stockholders	$	(128,951	)	$	(76,425	)

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The following is a reconciliation of net loss to Adjusted EBITDA:

	Altice USA
	Three Months Ended March 31,
	2018			2017
Net loss	$	(128,949	)	$	(76,188	)
Income tax benefit	(60,703		)	(45,908		)
Other expense, net	11,658			2,100
Loss (gain) on interest rate swap contracts	31,922			(2,342		)
Loss (gain) on derivative contracts, net	(168,352		)	71,044
Loss (gain) on investments and sale of affiliate interests, net	248,602			(131,658		)
Loss on extinguishment of debt and write-off of deferred financing costs	4,705			—
Interest expense, net	374,155			433,062
Depreciation and amortization	642,705			608,724
Restructuring and other expense	3,587			76,929
Share-based compensation	21,623			7,848
Adjusted EBITDA	$	980,953		$	943,611

The following table sets forth certain customer metrics by segment (unaudited):

	March 31, 2018									December 31, 2017									March 31, 2017
	Cablevision			Cequel			Total			Cablevision			Cequel			Total			Cablevision			Cequel			Total
	(in thousands, except per customer amounts)
Homes passed (a)	5,174			3,468			8,642			5,164			3,457			8,621			5,128			3,419			8,547
Total customer relationships (b)(c)	3,151			1,765			4,917			3,156			1,750			4,906			3,148			1,765			4,913
Residential	2,888			1,655			4,543			2,893			1,642			4,535			2,887			1,661			4,548
SMB	263			110			373			263			109			371			261			103			365
Residential customers:
Pay TV	2,340			1,035			3,375			2,363			1,042			3,406			2,413			1,087			3,500
Broadband	2,673			1,399			4,073			2,670			1,376			4,046			2,636			1,366			4,003
Telephony	1,954			596			2,550			1,965			592			2,557			1,955			596			2,551
Residential triple product customer penetration (d):	63.8		%	25.7		%	49.9		%	64.2		%	25.7		%	50.2		%	64.4		%	25.4		%	50.2		%
Penetration of homes passed (e):	60.9		%	50.9		%	56.9		%	61.1		%	50.6		%	56.9		%	61.4		%	51.6		%	57.5		%
ARPU(f)	$	154.48		$	113.58		$	139.63		$	155.39		$	112.21		$	139.75		$	155.52		$	109.88		$	138.87

(a) Represents the estimated number of single residence homes, apartments and condominium units passed by the cable distribution network in areas serviceable without further extending the transmission lines. In addition, it includes commercial establishments that have connected to our cable distribution network. For Cequel, broadband services were not available to approximately 100 homes passed and telephony services were not available to approximately 500 homes passed.

(b) Represents number of households/businesses that receive at least one of the Company's services.

(c) Customers represent each customer account (set up and segregated by customer name and address), weighted equally and counted as one customer, regardless of size, revenue generated, or number of boxes, units, or outlets.  In calculating the

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number of customers, we count all customers other than inactive/disconnected customers.  Free accounts are included in the customer counts along with all active accounts, but they are limited to a prescribed group.  Most of these accounts are also not entirely free, as they typically generate revenue through pay-per-view or other pay services and certain equipment fees.  Free status is not granted to regular customers as a promotion.  In counting bulk residential customers, such as an apartment building, we count each subscribing family unit within the building as one customer, but do not count the master account for the entire building as a customer. We count a bulk commercial customer, such as a hotel, as one customer, and do not count individual room units at that hotel.

(d) Represents the number of customers that subscribe to three of our services divided by total residential customer relationships.

(e) Represents the number of total customer relationships divided by homes passed.

(f) Calculated by dividing the average monthly revenue for the respective quarter (fourth quarter for annual periods) derived from the sale of broadband, pay television and telephony services to residential customers for the respective quarter by the average number of total residential customers for the same period.

	Segment Results
	Three Months Ended March 31,
	2018									2017
	Cablevision		Cequel		Eliminations			Total		Cablevision		Cequel		Total
Revenue:
Residential:
Pay TV	$	763,720	$	269,988	$	—		$	1,033,708	$	802,194	$	281,684	$	1,083,878
Broadband	440,351		261,270		—			701,621		396,333		229,585		625,918
Telephony	135,585		30,453		—			166,038		146,557		34,404		180,961
Business services and wholesale	234,172		98,918		—			333,090		228,544		90,876		319,420
Advertising	74,643		17,068		(4,129		)	87,582		65,132		18,229		83,361
Other	2,823		4,852		—			7,675		3,227		5,494		8,721
Total revenue	1,651,294		682,549		(4,129		)	2,329,714		1,641,987		660,272		2,302,259
Operating expenses:
Programming and other direct costs	588,581		202,624		(3,844		)	787,361		568,311		190,041		758,352
Other operating expenses	403,573		179,735		(285		)	583,023		449,809		158,335		608,144
Restructuring and other expense	3,083		504		—			3,587		58,647		18,282		76,929
Depreciation and amortization	485,364		157,341		—			642,705		443,176		165,548		608,724
Operating income	$	170,693	$	142,345	$	—		$	313,038	$	122,044	$	128,066	$	250,110

Altice USA - Comparison of Results for the Three Months Ended March 31, 2018 compared to the Three Months Ended March 31, 2017.

Pay Television Revenue

Pay television revenue for the three months ended March 31, 2018 and 2017 was $1,033,708 and $1,083,878, respectively, of which $763,720 and $802,194 was derived from the Cablevision segment and $269,988 and $281,684 relates to our Cequel segment. Pay television revenue is derived principally through monthly charges to residential customers of our pay television services. Revenue is impacted by rate increases, changes in the number of customers, including additional services sold to our existing customers, and changes in programming packages.

Pay television revenue for our Cablevision segment decreased $38,474 (5%) for the three months ended March 31, 2018 as compared to the same period in the prior year. The decrease was due primarily due to a decline in pay television customers and lower average revenue per pay television customer.

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Pay television revenue for our Cequel segment decreased $11,696 (4%) for the three months ended March 31, 2018 as compared to the same period in the prior year. The decrease was due primarily to a decline in the number of pay television customers, partially offset by an increase in average revenue per pay television customer.

We believe our pay television customer declines noted in the table above are largely attributable to competition, particularly from Verizon in our Cablevision footprint and DBS providers in our Cequel footprint, as well as competition from companies that deliver video content over the Internet directly to customers. These factors are expected to continue to impact our ability to maintain or increase our existing customers and revenue in the future.

Broadband Revenue

Broadband revenue for the three months ended March 31, 2018 and 2017 was $701,621 and $625,918, respectively, of which $440,351 and $396,333 was derived from our Cablevision segment and $261,270 and $229,585 was derived from our Cequel segment. Broadband revenue is derived principally through monthly charges to residential subscribers of our broadband services. Revenue is impacted by rate increases, changes in the number of customers, including additional services sold to our existing subscribers, and changes in speed tiers.

Broadband revenue for our Cablevision segment increased $44,018 (11%) for the three months ended March 31, 2018 compared to the three months ended March 31, 2017. The increase was due primarily to higher average recurring broadband revenue per broadband customer, primarily driven by certain rate increases, and an increase in broadband customers.

Broadband revenue for our Cequel segment increased $31,685 (14%) for the three months ended March 31, 2018 compared to the same period in the prior year. The increase was due primarily to higher average recurring broadband revenue per broadband customer, primarily driven by certain rate increases and service level changes, and an increase in broadband customers.

Telephony Revenue

Telephony revenue for the three months ended March 31, 2018 and 2017 was $166,038 and $180,961 of which $135,585 and $146,557 was derived from the Cablevision segment and $30,453 and $34,404 was derived from our Cequel segment. Telephony revenue is derived principally through monthly charges to residential customers of our telephony services. Revenue is impacted by changes in rates for services, changes in the number of customers, and additional services sold to our existing customers.

Telephony revenue for our Cablevision segment decreased $10,972 (7%) for the three months ended March 31, 2018 compared to the three months ended March 31, 2017. The decrease was due primarily to lower rates offered to customers.

Telephony revenue for our Cequel segment decreased $3,951 (11%) for the three months ended March 31, 2018 compared to the three months ended March 31, 2017. The decrease was due primarily to lower rates offered to customers.

Business Services and Wholesale Revenue

Business services and wholesale revenue for the three months ended March 31, 2018 and 2017 was $333,090 and $319,420, respectively of which $234,172 and $228,544 was derived from the Cablevision segment and $98,918 and $90,876 was derived from our Cequel segment. Business services and wholesale revenue is derived primarily from the sale of fiber based telecommunications services to the business market, and the sale of broadband, pay television and telephony services to small and medium sized business ("SMB") customers.

Business services and wholesale revenue for our Cablevision segment increased $5,628 (2%) for the three months ended March 31, 2018 as compared to the three months ended March 31, 2017. The increase was primarily due to higher average recurring broadband revenue per SMB customer and higher Ethernet revenue, partially offset by reduced traditional voice and data services for commercial customers.

Business services and wholesale revenue for our Cequel segment increased $8,042 (9%) for the three months ended March 31, 2018 as compared to the three months ended March 31, 2017. The increase was primarily due to higher commercial rates and customers for broadband services, an increase in certain pay television rates and increases in wholesale data and telephony services.

Advertising Revenue

Advertising revenue for the three months ended March 31, 2018 and 2017, net of inter-segment revenue, was $87,582 and $83,361, respectively, of which $74,643 and $65,132 was derived from our Cablevision segment and $17,068 and $18,229 was derived from our Cequel segment. Advertising revenue is primarily derived from the sale of advertising time available on the programming carried on our cable television systems.

Advertising revenue for our Cablevision segment increased $9,511 (15%) for the three months ended March 31, 2018 as compared to the three months ended March 31, 2017. The increase is primarily due to an increase in digital advertising.

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Advertising revenue for our Cequel segment decreased $1,161 (6%) for the three months ended March 31, 2018 as compared to the three months ended March 31, 2017.

Other Revenue

Other revenue for the three months ended March 31, 2018 and 2017 was $7,675 and $8,721, respectively, of which $2,823 and $3,227 was derived from our Cablevision segment and $4,852 and $5,494 was derived from our Cequel segment. Other revenue includes other miscellaneous revenue streams.

Programming and Other Direct Costs

Programming and other direct costs for the three months ended March 31, 2018 and 2017 amounted to $787,361 and $758,352, respectively, of which $588,581 and $568,311 relate to our Cablevision segment and $202,624 and $190,041 relate to our Cequel segment. Programming and other direct costs include cable programming costs, which are costs paid to programmers (net of amortization of any incentives received from programmers for carriage) for cable content (including costs of VOD and pay‑per‑view) and are generally paid on a per‑customer basis. These costs typically rise due to increases in contractual rates and new channel launches and are also impacted by changes in the number of customers receiving certain programming services. These costs also include interconnection, call completion, circuit and transport fees paid to other telecommunication companies for the transport and termination of voice and data services, which typically vary based on rate changes and the level of usage by our customers. These costs also include franchise fees which are payable to the state governments and local municipalities where we operate and are primarily based on a percentage of certain categories of revenue derived from the provision of pay television service over our cable systems, which vary by state and municipality. These costs change in relation to changes in such categories of revenues or rate changes.

The increase of $29,009 (4%) in programming and other direct costs for the three months ended March 31, 2018, net of inter-segment eliminations, as compared to the prior year period is attributable to the following:

Cablevision segment:
Increase in costs of digital media advertising spots for resale	$	14,026
Increase in programming costs due primarily to contractual rate increases, partially offset by lower pay television customers and lower video-on-demand and pay-per-view costs	4,475
Other net increases	1,769
	20,270

Cequel segment:
Increase in programming costs due primarily to contractual rate increases and new channel launches, partially offset by lower pay television customers and lower video-on-demand and pay-per-view costs	11,719
Other net increases	864
	12,583
Inter-segment eliminations	(3,844		)
	$	29,009

Programming costs

Programming costs aggregated $652,428 and $636,232 for the three months ended March 31, 2018 and 2017, respectively. Our programming costs in 2018 will continue to be impacted by changes in programming rates, which we expect to increase by high single digits, and by changes in the number of pay television customers.

Other Operating Expenses

Other operating expenses for the three months ended March 31, 2018 and 2017 amounted to $583,023, and $608,144, respectively, of which $403,573 and $449,809 relate to our Cablevision segment and $179,735 and $158,335 relate to our Cequel segment. Other operating expenses include staff costs and employee benefits including salaries of company employees and related taxes, benefits and other employee related expenses. Other operating expenses also include network management and field service costs, which represent costs associated with the maintenance of our broadband network, including costs of certain customer connections and other costs associated with providing and maintaining services to our customers.

Customer installation and repair and maintenance costs may fluctuate as a result of changes in the level of activities and the utilization of contractors as compared to employees. Also, customer installation costs fluctuate as the portion of our expenses that we are able to capitalize changes. Costs associated with the initial deployment of new customer premise

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equipment necessary to provide broadband, pay television and telephony services are capitalized (asset-based). Network repair and maintenance and utility costs also fluctuate as capitalizable network upgrade and enhancement activity changes.

Other operating expenses also include costs related to the operation and maintenance of our call center facilities that handle customer inquiries and billing and collection activities and sales and marketing costs, which include advertising production and placement costs associated with acquiring and retaining customers. These costs vary period to period and certain of these costs, such as sales and marketing, may increase with intense competition. Additionally, other operating expenses include various other administrative costs, including legal fees, and product development costs.

The decrease of $25,121 (4%) in other operating expenses for the three months ended March 31, 2018, net of inter-segment eliminations, as compared to the prior year period is attributable to the following:

Cablevision segment:
Decrease in salaries and benefits, and an increase in capitalizable activity	$	(82,117	)
Increase in contractor costs	18,040
Increase in share-based compensation and long-term incentive plan awards expense	10,131
Increase in sales and marketing costs	3,297
Increase in facility costs	2,800
Other net increases	1,613
	(46,236		)
Cequel segment:
Decrease primarily in salaries, partially offset by lower capitalizable activity	(7,031		)
Increase in general and administrative costs	8,581
Increase in product development costs and product consulting fees	6,659
Increase in sales and marketing costs	4,615
Increase in repairs and maintenance costs	4,295
Other net increases	4,281
	21,400
Inter-segment eliminations	(285		)
	$	(25,121	)

Restructuring and Other Expense

Restructuring and other expense for the three months ended March 31, 2018 of $3,587 ($3,083 for our Cablevision segment and $504 for our Cequel segment) as compared to $76,929 for the three months ended March 31, 2017 ($58,647 for our Cablevision segment and $18,282 for our Cequel segment). These amounts primarily relate to costs incurred in connection with severance and other employee related costs resulting from headcount reductions related to initiatives which commenced in 2016 that are intended to simplify the Company's organizational structure. We currently anticipate that additional restructuring expenses will be recognized as we continue to analyze our organizational structure.

Depreciation and Amortization

Depreciation and amortization for the three months ended March 31, 2018 and 2017 amounted to $642,705 and $608,724, respectively, of which $485,364 and $443,176 relates to our Cablevision segment and $157,341 and $165,548 relates to our Cequel segment.

Depreciation and amortization for our Cablevision segment increased of $42,188 (10%) for the three months ended March 31, 2018 as compared to the three months ended March 31, 2017. The increase is due primarily to the acceleration of amortization on its trade name intangible assets in connection with the announcement, on May 23, 2017, of the adoption of a global brand that will replace the Optimum brand in the future, as well as depreciation on new asset additions.

Depreciation and amortization for our Cequel segment decreased $8,207 (5%) for the three months ended March 31, 2018 as compared to the three months ended March 31, 2017. The decrease is due primarily to lower amortization expense for certain intangible assets that are being amortized using an accelerated method.

Adjusted EBITDA

Adjusted EBITDA amounted to $980,953 and $943,611 for the three months ended March 31, 2018 and 2017, respectively, of which $675,312 and $628,949 relates to our Cablevision segment and $305,641 and $314,662 relates to our Cequel segment.

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Adjusted EBITDA is a non-GAAP measure that is defined as net loss excluding income taxes, loss from discontinued operations, other non-operating income or expenses, loss on extinguishment of debt and write-off of deferred financing costs, gain (loss) on interest rate swap contracts, gain (loss) on derivative contracts, gain (loss) on investments, interest expense (including cash interest expense), interest income, depreciation and amortization (including impairments), share-based compensation expense, restructuring expense or credits and transaction expenses. See reconciliation of net loss to adjusted EBITDA above.

The increase in adjusted EBITDA of our Cablevision segment for the three months ended March 31, 2018 as compared to the prior year period was due to an increase in revenue, partially offset by an increase in operating expenses (excluding depreciation and amortization expense, restructuring expense, share-based compensation and transaction expenses) as discussed above.

The decrease in adjusted EBITDA of our Cequel segment for the three months ended March 31, 2018 as compared to the prior year period was due primarily to an increase in operating expenses (excluding depreciation and amortization expense, restructuring expense, share-based compensation and transaction expenses), partially offset by an increase in revenue as discussed above.

Interest Expense, net

Interest expense, net was $374,155 and $433,062, for the three months ended March 31, 2018 and 2017, respectively. The decrease of $58,907 (14%) for the three months ended March 31, 2018 as compared to the prior year period is attributable to the following:

Decrease due to changes in average debt balances and interest rates on our indebtedness and collateralized debt	$	(68,376	)
Higher interest income	(2,872		)
Other net increases, primarily amortization of deferred financing costs and original issue discounts	12,341
	$	(58,907	)

See "Liquidity and Capital Resources" discussion below for a detail of our borrower groups.

Gain (loss) on Investments and Sale of Affiliate Interests, net

Gain (loss) on investments, net for the three months ended March 31, 2018 and 2017 of $(248,602) and $131,658, respectively, consists primarily of the increase (decrease) in the fair value of Comcast common stock owned by the Company for the periods. The effects of these gains are partially offset by the losses on the related equity derivative contracts, net described below. The amount for the three months ended March 31, 2018 includes a net gain of $3,974 related to the sale of affiliate interests.

Gain (loss) on Derivative Contracts, net

Gain (loss) on derivative contracts, net for the three months ended March 31, 2018 and 2017 amounted to $168,352 and $(71,044), respectively and includes realized and unrealized gains or losses due to the change in fair value of equity derivative contracts relating to the Comcast common stock owned by the Company.  The effects of these gains or losses are offset by gains and losses on investment securities pledged as collateral, which are included in gain (loss) on investments, net discussed above.

Gain (loss) on interest rate swap contracts

Gain (loss) on interest rate swap contracts was $(31,922) and $2,342 for the three months ended March 31, 2018 and 2017, respectively. These amounts represent the increase or decrease in fair value of the fixed to floating interest rate swaps entered into by our Cequel segment. The objective of these swaps is to adjust the proportion of total debt that is subject to fixed and variable interest rates. These swap contracts are not designated as hedges for accounting purposes.

Loss on extinguishment of debt and write-off of deferred financing costs

Loss on extinguishment of debt and write-off of deferred financing costs amounted to $4,705 for the three months ended March 31, 2018 and includes the write-off of unamortized premium and deferred financing costs and the premium paid in connection with early redemption of the $750,000 7.75% Cablevision senior notes that were due in April 2018.

Income Tax Benefit

The Company recorded income tax benefit of $60,703 and $45,908 for the three months ended March 31, 2018 and 2017, respectively, reflecting an effective tax rate of 32% and 38%, respectively. The effective tax rate for the three month ended March 31, 2018 has declined compared to previous years primarily as a result of the enactment of the Tax Cuts & Jobs Act in December 2017 which lowered the corporate federal income tax rate from 35% to 21%.

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Liquidity and Capital Resources

Altice USA has no operations independent of its subsidiaries, Cablevision and Cequel. Funding for our subsidiaries has generally been provided by cash flow from their respective operations, cash on hand and borrowings under their revolving credit facilities and the proceeds from the issuance of securities and borrowings under syndicated term loans in the capital markets.  Our decision as to the use of cash generated from operating activities, cash on hand, borrowings under the revolving credit facilities or accessing the capital markets has been based upon an ongoing review of the funding needs of the business, the optimal allocation of cash resources, the timing of cash flow generation and the cost of borrowing under the revolving credit facilities, debt securities and syndicated term loans. We manage our business to a long-term net leverage ratio target of 4.5x to 5.0x. We calculate our consolidated net leverage ratio as net debt to L2QA EBITDA (Adjusted EBITDA for the two most recent consecutive fiscal quarters multiplied by 2.0).

We expect to utilize free cash flow and availability under the revolving credit facilities, as well as future refinancing transactions, to further extend the maturities of, or reduce the principal on, our debt obligations. The timing and terms of any refinancing transactions will be subject to, among other factors, market conditions. Additionally, we may, from time to time, depending on market conditions and other factors, use cash on hand and the proceeds from other borrowings to repay the outstanding debt securities through open market purchases, privately negotiated purchases, tender offers, or redemptions.

We believe existing cash balances, operating cash flows and availability under our revolving credit facilities will provide adequate funds to support our current operating plan, make planned capital expenditures and fulfill our debt service requirements for the next twelve months. However, our ability to fund our operations, make planned capital expenditures, make scheduled payments on our indebtedness and repay our indebtedness depends on our future operating performance and cash flows and our ability to access the capital markets, which, in turn, are subject to prevailing economic conditions and to financial, business and other factors, some of which are beyond our control. Our collateralized debt maturing in the next 12 months will be settled with proceeds from monetization contracts entered into pursuant to the Synthetic Monetization Closeout discussed below. However, competition, market disruptions or a deterioration in economic conditions could lead to lower demand for our products, as well as lower levels of advertising, and increased incidence of customers' inability to pay for the services we provide.  These events would adversely impact our results of operations, cash flows and financial position.  Although we currently believe that amounts available under the revolving credit facilities will be available when, and if, needed, we can provide no assurance that access to such funds will not be impacted by adverse conditions in the financial markets or other conditions.  The obligations of the financial institutions under the revolving credit facilities are several and not joint and, as a result, a funding default by one or more institutions does not need to be made up by the others.

In the longer term, we do not expect to be able to generate sufficient cash from operations to fund anticipated capital expenditures, meet all existing future contractual payment obligations and repay our debt at maturity.  As a result, we will be dependent upon our continued access to the capital and credit markets to issue additional debt or equity or refinance existing debt obligations.  We intend to raise significant amounts of funding over the next several years to fund capital expenditures, repay existing obligations and meet other obligations, and the failure to do so successfully could adversely affect our business.  If we are unable to do so, we will need totake other actions including deferring capital expenditures, selling assets, seeking strategic investments from third parties or reducing or eliminating discretionary uses of cash.

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Debt Outstanding

The following tables summarize the carrying value of our outstanding debt net of eliminations, deferred financing costs, discounts and premiums (excluding accrued interest), as well as interest expense.

	As of March 31, 2018
	Cablevision		Cequel		Total
Debt outstanding:
Credit facility debt	$	4,442,684	$	1,247,318	$	5,690,002
Senior guaranteed notes	3,283,283		—		3,283,283
Senior secured notes	—		2,571,465		2,571,465
Senior notes and debentures	7,176,170		2,779,048		9,955,218
Subtotal	14,902,137		6,597,831		21,499,968
Capital lease obligations	18,063		1,505		19,568
Notes payable (includes $30,108 related to collateralized debt)	78,938		24,149		103,087
Subtotal	14,999,138		6,623,485		21,622,623
Collateralized indebtedness relating to stock monetizations (a)	1,351,271		—		1,351,271
Total debt	$	16,350,409	$	6,623,485	$	22,973,894
Interest expense:	Three Months Ended March 31, 2018
Credit facility debt, senior notes, capital leases and notes payable	$	260,667	$	102,568	$	363,235
Collateralized indebtedness and notes payable relating to stock monetizations (a)	14,023		—		14,023
Total interest expense	$	274,690	$	102,568	$	377,258

(a) This indebtedness is collateralized by shares of Comcast common stock. We intend to settle this debt by (i) delivering shares of Comcast common stock and the related equity contracts, (ii) delivering cash from the net proceeds on new monetization contracts, or (iii) delivering cash from the proceeds of monetization contracts entered into pursuant to the Synthetic Monetization Closeout discussed below.

Synthetic Monetization Closeout

In April 2017, the Company entered into new monetization contracts related to 32,153,118 shares of Comcast common stock held by Cablevision, which synthetically reversed the existing contracts related to these shares (the "Synthetic Monetization Closeout"). As the existing collateralized debt matures, the Company will settle the contracts with proceeds received from the new monetization contracts. The new monetization contracts mature on April 28, 2021. The new monetization contracts provide the Company with downside protection below the hedge price of $35.47 and upside benefit of stock price appreciation up to $44.72 per share.

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The following table provides details of our outstanding credit facility debt as of March 31, 2018: 

	Maturity Date	Interest Rate	Principal		Carrying Value (a)
Cablevision:
CSC Holdings Revolving Credit Facility (b)	$20,000 on October 9, 2020, remaining balance on November 30, 2021	—%	$	—	$	—
CSC Holdings Term Loan Facility	July 17, 2025	4.04%	2,977,500		2,960,859
CSC Holdings Incremental Term Loan Facility	January 25, 2026	4.28%	1,500,000		1,481,825
Cequel:
Revolving Credit Facility (c)	$65,000 on November 30, 2021, and remaining balance on April 5, 2023	—	—		—
Term Loan Facility	July 28, 2025	4.13%	1,255,513		1,247,318
			$	5,733,013	$	5,690,002

(a) Carrying amounts are net of unamortized discounts and deferred financing costs.

(b) At March 31, 2018, $115,973 of the revolving credit facility was restricted for certain letters of credit issued on behalf of the Company and $2,184,027 of the facility was undrawn and available, subject to covenant limitations.

(c) At March 31, 2018, $13,500 of the revolving credit facility was restricted for certain letters of credit issued on behalf of the Company and $336,500 of the facility was undrawn and available, subject to covenant limitations.

Payment Obligations Related to Debt

As of March 31, 2018, total amounts payable by us in connection with our outstanding obligations, including related interest, as well as capital lease obligations, notes payable, and the value deliverable at maturity under monetization contracts are as follows:

	Cablevision (a)		Cequel		Total
2018	$	1,268,928	$	287,631	$	1,556,559
2019	1,563,607		405,904		1,969,511
2020	1,487,002		1,435,063		2,922,065
2021	3,406,339		1,567,455		4,973,794
2022	1,507,732		252,857		1,760,589
Thereafter	13,910,877		5,035,769		18,946,646
Total	$	23,144,485	$	8,984,679	$	32,129,164

(a) Includes $1,566,792 related to the Company's collateralized indebtedness (including related interest).  This indebtedness is collateralized by shares of Comcast common stock. We intend to settle this debt by (i) delivering shares of Comcast common stock and the related equity contracts, (ii) delivering cash from the net proceeds on new monetization contracts, or (iii) delivering cash from the proceeds of monetization contracts entered into pursuant to the Synthetic Monetization Closeout discussed above.

CSC Holdings Restricted Group

CSC Holdings and those of its subsidiaries which conduct our broadband, pay television and telephony services operations, as well as Lightpath, which provides Ethernet-based data, Internet, voice and video transport and managed services to the business market, comprise the "Restricted Group" as they are subject to the covenants and restrictions of the credit facility and indentures governing the notes and debentures issued by CSC Holdings.  In addition, the Restricted Group is also subject to the covenants of the debt issued by Cablevision.

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Sources of cash for the Restricted Group include primarily cash flow from the operations of the businesses in the Restricted Group, borrowings under its credit facility and issuance of securities in the capital markets, contributions from its parent, and, from time to time, distributions or loans from its subsidiaries.  The Restricted Group's principal uses of cash include:  capital spending, in particular, the capital requirements associated with the upgrade of its digital broadband, pay television and telephony services, including costs to build a FTTH network and enhancements to its service offerings such as a broadband wireless network (WiFi); debt service, including distributions made to Cablevision to service interest expense and principal repayments on its debt securities; other corporate expenses and changes in working capital; and investments that it may fund from time to time.

Cablevision Credit Facilities

On October 9, 2015, Finco, which merged with and into CSC Holdings on June 21, 2016, entered into a senior secured credit facility, which currently provides U.S. dollar term loans currently in an aggregate principal amount of $3,000,000 ($2,977,500 outstanding at March 31, 2018) (the “CVC Term Loan Facility”, and the term loans extended under the CVC Term Loan Facility, the “CVC Term Loans”) and U.S. dollar revolving loan commitments in an aggregate principal amount of $2,300,000 (the “CVC Revolving Credit Facility” and, together with the CVC Term Loan Facility, the “CVC Credit Facilities”), which are governed by a credit facilities agreement entered into by, inter alios, CSC Holdings certain lenders party thereto and JPMorgan Chase Bank, N.A. as administrative agent and security agent (as amended, restated, supplemented or otherwise modified on June 20, 2016, June 21, 2016, July 21, 2016, September 9, 2016, December 9, 2016, March 15, 2017 and January 12, 2018, respectively, and as further amended, restated, supplemented or otherwise modified from time to time, the “CVC Credit Facilities Agreement”).

In January 2018, CSC Holdings borrowed $150,000 under its revolving credit facility and entered into a new $1,500,000 incremental term loan facility (the "Incremental Term Loan") under its existing CVC Credit Facilities Agreement. The Incremental Term Loan was priced at 99.50% and will mature on January 25, 2026. The Incremental Term Loan is comprised of eurodollar borrowings or alternate base rate borrowings, and bears interest at a rate per annum equal to the adjusted LIBO rate or the alternate base rate, as applicable, plus the applicable margin, where the applicable margin is (i) with respect to any alternate base rate loan, 1.50% per annum and (ii) with respect to any eurodollar loan, 2.50% per annum. See discussion below regarding use of proceeds from the Incremental Term Loan.

The Company made a voluntary repayment of $600,000 under the CSC Holdings revolving credit facility in January 2018.

The Company was in compliance with all of its financial covenants under the CVC Credit Facilities Agreement as of March 31, 2018.

See Note 9 to our condensed consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2017 for further information regarding the CVC Credit Facilities Agreement.

Cequel Credit Facilities

On June 12, 2015, Altice US Finance I Corporation, a wholly-owned subsidiary of Cequel, entered into a senior secured credit facility which currently provides U.S. dollar term loans in an aggregate principal amount of $1,265,000 ($1,255,513 outstanding at March 31, 2018) (the “Cequel Term Loan Facility” and the term loans extended under the Cequel Term Loan Facility, the “Cequel Term Loans”) and U.S. dollar revolving loan commitments in an aggregate principal amount of $350,000 (the “Cequel Revolving Credit Facility” and, together with the Cequel Term Loan Facility, the “Cequel Credit Facilities”) which are governed by a credit facilities agreement entered into by, inter alios, Altice US Finance I Corporation, certain lenders party thereto and JPMorgan Chase Bank, N.A. as administrative agent and security agent (as amended, restated, supplemented or otherwise modified on October 25, 2016, December 9, 2016, March 15, 2017, and March 22, 2018 and as further amended, restated, supplemented or modified from time to time, the “Cequel Credit Facilities Agreement”).

The Company was in compliance with all of its financial covenants under the Cequel Credit Facilities Agreement as of March 31, 2018.

See Note 9 to our condensed consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2017 for further information regarding the Cequel Credit Facilities Agreement.

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Senior Notes

Cablevision Notes

On April 15, 2010, Cablevision issued $750,000 aggregate principal amount of its 7 3/4% Senior Notes due 2018 (the "CVC 2018 Notes") and $500,000 aggregate principal amount of its 8% Senior Notes due 2020. On September 27, 2012, Cablevision issued $750,000 aggregate principal amount of its 5 7/8% Senior Notes due 2022 ($649,024 principal outstanding at March 31, 2018). The CVC 2018 Notes were repaid in February 2018.

As of March 31, 2018, Cablevision was in compliance with all of its financial covenants under the indentures under which the Cablevision Notes were issued.

CSC Holdings Notes

CSC Holdings Senior Guaranteed Notes

On October 9, 2015, Finco issued $1,000,000 aggregate principal amount of its 6 5/8% Senior Guaranteed Notes due 2025 (the "CSC 2025 Senior Guaranteed Notes"). CSC Holdings assumed the obligations as issuer of the CSC 2025 Senior Guaranteed Notes upon the merger of Finco and CSC Holdings on June 21, 2016. On September 23, 2016, CSC Holdings issued $1,310,000 aggregate principal amount of its 5 1/2% Senior Guaranteed Notes due 2027.

In January 2018, CSC Holdings issued $1,000,000 aggregate principal amount of 5 3/8% senior guaranteed notes due February 1, 2028 (the "2028 Guaranteed Notes"). The 2028 Guaranteed Notes are senior unsecured obligations and rank pari passu in right of payment with all of the existing and future senior indebtedness, including the existing senior notes and the Credit Facilities and rank senior in right of payment to all of existing and future subordinated indebtedness. The proceeds from the 2028 Guaranteed Notes, together with proceeds from the Incremental Term Loan discussed above, borrowings under CSC Holdings' revolving credit facility and cash on hand, were used in February 2018 to repay certain senior notes ($300,000 principal amount of CSC Holdings' senior notes due in February 2018 and $750,000 principal amount of Cablevision senior notes due in April 2018) and will be used to fund a dividend of $1,500,000 to the Company's stockholders immediately prior to and in connection with the Distribution.

As of March 31, 2018, CSC Holdings was in compliance with all of its financial covenants under the indentures under which the CSC Holdings senior guaranteed notes were issued.

CSC Holdings Senior Notes

On February 6, 1998, CSC Holdings issued $300,000 aggregate principal amount of its 7 7/8% Senior Debentures which matured and were repaid in February 2018. On July 21, 1998, CSC Holdings issued $500,000 aggregate principal amount of its 7 5/8% Senior Debentures due 2018. On February 12, 2009, CSC Holdings issued $526,000 aggregate principal amount of its 8 5/8% Senior Notes due 2019 and 8 5/8% Series B Senior Notes due 2019. On November 15, 2011, CSC Holdings issued $1,000,000 aggregate principal amount of its 6 3/4% Senior Notes due 2021 and 6 3/4% Series B Senior Notes due 2021. On May 23, 2014, CSC Holdings issued $750,000 aggregate principal amount of its 5 1/4% Senior Notes due 2024 and 5 1/4% Series B Senior Notes due 2024.

On October 9, 2015, Finco issued $1,800,000 aggregate principal amount of its 10 1/8% Senior Notes due 2023 (the "CSC 2023 Senior Notes") and $2,000,000 ($1,684,221 outstanding at March 31, 2018) of its 10 7/8% Senior Notes due 2025 (the "CSC 2025 Senior Notes). CSC Holdings assumed the obligations as issuer of the CSC 2023 Senior Notes and the CSC 2025 Senior Notes upon the merger of Finco and CSC Holdings on June 21, 2016.

As of March 31, 2018, CSC Holdings was in compliance with all of its financial covenants under the indentures under which the CSC Holdings senior notes were issued.

Cequel Notes

Cequel Senior Secured Notes

On June 12, 2015, Altice US Finance I Corporation issued $1,100,000 aggregate principal amount of its 5 3/8% Senior Secured Notes due 2023. On April 26, 2016, Altice US Finance I Corporation issued $1,500,000 aggregate principal amount of its 5 1/2% Senior Secured Notes due 2026.

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As of March 31, 2018, Cequel was in compliance with all of its financial covenants under the indentures under which the Cequel senior secured notes were issued.

Cequel Senior Notes

On October 25, 2012, Cequel Capital Corporation and Cequel Communications Holdings I, LLC (collectively, the "Cequel Senior Notes Co-Issuers") issued $500,000 aggregate principal amount of their 6 3/8% Senior Notes due 2020 (the "Cequel 2020 Senior Notes"). On December 28, 2012, the Cequel Senior Notes Issuers issued an additional $1,000,000 aggregate principal amount of their Cequel 2020 Senior Notes. In April 2017, the Company redeemed $450,000 of the Cequel 2020 Senior Notes from proceeds of the Cequel Term Loan pursuant to the March 15, 2017 amendment.

On May 16, 2013, the Cequel Senior Notes Co-Issuers issued $750,000 aggregate principal amount of their 5 1/8% Senior Notes due 2021. On September 9, 2014, the Cequel Senior Notes Co-Issuers issued $500,000 aggregate principal amount of their 5 1/8% Senior Notes due 2021.

On June 12, 2015, Altice US Finance II Corporation issued $300,000 aggregate principal amount of its 7 3/4% Senior Notes due 2025 (the "Cequel 2025 Senior Notes"). Following the Cequel Acquisition, Altice US Finance II Corporation was merged into Cequel and the Cequel 2025 Senior Notes became the obligation of the Cequel Senior Notes Co-Issuers.

Also on June 12, 2015, Altice US Finance S.A., an indirect subsidiary of Altice, issued $320,000 principal amount of 7 3/4% Senior Notes due 2025 (the "Cequel Holdco Notes"), the proceeds from which were placed in escrow, to finance a portion of the purchase price for the Cequel Acquisition. The Cequel Holdco Notes were automatically exchanged into an equal aggregate principal amount of Cequel 2025 Senior Notes during the second quarter of 2016.

As of March 31, 2018, Cequel was in compliance with all of its financial covenants under the indentures under which the Cequel senior notes were issued.

In April 2018, Cequel Communications Holdings I, LLC and Cequel Capital Corporation each an indirect, wholly owned subsidiary of the Company, issued $1,050,000, aggregate principal amount of 7.5% senior notes due April 1, 2028. The proceeds of these notes were used in April 2018 to redeem the $1,050,000 aggregate principal amount 6.375% senior notes due September 15, 2020.

Capital Expenditures

The following tables provide details of the Company's capital expenditures:

	Three Months Ended March 31,
	2018						2017
	Cablevision		Cequel		Total		Cablevision		Cequel		Total
Customer premise equipment	$	62,306	$	18,421	$	80,727	$	47,675	$	28,279	$	75,954
Network infrastructure	34,717		38,124		72,841		74,948		26,028		100,976
Support and other	41,589		21,253		62,842		38,198		8,454		46,652
Business services	28,189		13,016		41,205		23,578		10,267		33,845
Capital purchases (cash basis)	$	166,801	$	90,814	$	257,615	$	184,399	$	73,028	$	257,427
Capital purchases (including accrued not paid)	$	135,758	$	80,907	$	216,665	$	115,620	$	47,324	$	162,944

Customer premise equipment includes expenditures for set-top boxes, cable modems, routers and other equipment that is placed in a customer's home, as well as installation costs for placing the assets into service. Network infrastructure includes: (i) scalable infrastructure, such as headend equipment, (ii) line extensions, such as fiber/coaxial cable, amplifiers, electronic equipment, make-ready and design engineering, and (iii) upgrade and rebuild, including costs to modify or replace existing fiber/coaxial cable networks, including enhancements. Support and other capital expenditures includes costs associated with the replacement or enhancement of non-network assets, such as office equipment, buildings and vehicles. Business services capital expenditures include primarily equipment, installation, support, and other costs related to our fiber based telecommunications business.

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Cash Flow Discussion

Operating Activities

Net cash provided by operating activities amounted to $430,952 for the three months ended March 31, 2018 compared to $244,086 for the three months ended March 31, 2017.  The 2018 cash provided by operating activities resulted from $595,999 of income before depreciation and amortization and non-cash items and a decrease in accounts receivable of $25,207, an increase in liabilities related to interest rate swap contract of $31,922, and an increase in deferred revenue of $11,929, partially offset by a net decrease in accounts payable and accrued liabilities of $213,490 and an increase in other assets of $20,615.

The 2017 cash provided by operating activities resulted from $447,849 of income before depreciation and amortization and non-cash items, a $34,707 decrease in accounts receivable, an increase in deferred revenue of $11,257, partially offset by $105,708 resulting from a decrease in accounts payable and accrued expenses, a net decrease of $131,564 in amounts due to affiliates, an increase in current and other assets of $10,113, and a decrease in liability related to interest rate swap contracts of $2,342.

Investing Activities

Net cash used in investing activities for the three months ended March 31, 2018 was $291,627 compared to $301,172 for the three months ended March 31, 2017.  The 2018 investing activities consisted primarily of capital expenditures of $257,615, payments for acquisitions, net of cash acquired of $28,940, and $5,072 in other net cash payments.

The 2017 investing activities consisted primarily of capital expenditures of $257,427, payments for acquisitions, net of cash acquired of $43,608, and $137 in other cash payments.

Financing Activities

Net cash provided by financing activities amounted to $958,479 for the three months ended March 31, 2018 compared to $42,267 for the three months ended March 31, 2017.  In 2018, the Company's financing activities consisted primarily of proceeds from credit facility debt of $1,642,500, proceeds from the issuance of senior notes of $1,000,000 and other net cash receipts of $2,886, partially offset by the redemption and repurchase of senior notes, including premiums and fees of $1,057,019, the repayment of credit facility debt of $610,663, and additions to deferred financing costs of $19,225.

In 2017, the Company's financing activities consisted primarily of proceeds from credit facility debt of $225,000 and collateralized indebtedness of $156,136, partially offset by repayments credit facility debt of $183,288, payments of collateralized indebtedness and related derivative contracts of $150,084, principal payments on capital lease obligations of $4,207 and additions to deferred financing costs of $1,290.

Commitments and Contingencies

As of March 31, 2018, the Company's commitments and contingencies not reflected in the Company's balance sheet decreased to approximately $8,425,000 as compared to approximately $9,069,000 at December 31, 2017. This decrease relates primarily to payments made pursuant to programming commitments, offset by renewed multi-year programming agreements entered into during the three months ended March 31, 2018.

Recently Issued But Not Yet Adopted Accounting Pronouncements

In January 2017, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2017‑04, Intangibles-Goodwill and Other (Topic 350). ASU No. 2017‑04 simplifies the subsequent measurement of goodwill by removing the second step of the two‑step impairment test. The amendment requires an entity to perform its annual, or interim goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity still has the option to perform the qualitative assessment for a reporting unit to determine if the quantitative impairment test is necessary. ASU No. 2017‑04 becomes effective for the Company on January 1, 2020 with early adoption permitted and will be applied prospectively.

In February 2016, the FASB issued ASU No. 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

46

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.

Item 3. Quantitative and Qualitative Disclosures About Market Risk

All dollar amounts, except per share data, included in the following discussion are presented in thousands.

Equity Price Risk

We are exposed to market risks from changes in certain equity security prices.  Our exposure to changes in equity security prices stems primarily from the shares of Comcast common stock we hold.  We have entered into equity derivative contracts consisting of a collateralized loan and an equity collar to hedge our equity price risk and to monetize the value of these securities.  These contracts, at maturity, are expected to offset declines in the fair value of these securities below the hedge price per share while allowing us to retain upside appreciation from the hedge price per share to the relevant cap price.  The contracts' actual hedge prices per share vary depending on average stock prices in effect at the time the contracts were executed.  The contracts' actual cap prices vary depending on the maturity and terms of each contract, among other factors.  If any one of these contracts is terminated prior to its scheduled maturity date due to the occurrence of an event specified in the contract, we would be obligated to repay the fair value of the collateralized indebtedness less the sum of the fair values of the underlying stock and equity collar, calculated at the termination date.  As of March 31, 2018, we did not have an early termination shortfall relating to any of these contracts.

The underlying stock and the equity collars are carried at fair value on our condensed consolidated balance sheet and the collateralized indebtedness is carried at its principal value, net of discounts and the unamortized fair value adjustment for contracts that existed at the date of the Cablevision Acquisition. The fair value adjustment is being amortized over the term of the related indebtedness.  The carrying value of our collateralized indebtedness amounted to $1,351,271 at March 31, 2018.  At maturity, the contracts provide for the option to deliver cash or shares of Comcast common stock, with a value determined by reference to the applicable stock price at maturity.

As of March 31, 2018, the fair value and the carrying value of our holdings of Comcast common stock aggregated $1,467,781.  Assuming a 10% change in price, the potential change in the fair value of these investments would be approximately $146,778.  As of March 31, 2018, the net fair value and the carrying value of the equity collar component of the equity derivative contracts entered into to partially hedge the equity price risk of our holdings of Comcast common stock aggregated $58,848, a net asset position.  For the three months ended March 31, 2018, we recorded a net gain of $168,352 related to our outstanding equity derivative contracts and recorded an unrealized loss of $252,576 related to the Comcast common stock that we held.

Fair Value of Equity Derivative Contracts
Fair value as of December 31, 2017, net liability position	$	(109,504	)
Change in fair value, net	168,352
Fair value as of March 31, 2018, net asset position	$	58,848

The maturity, number of shares deliverable at the relevant maturity, hedge price per share, and the lowest and highest cap prices received for the Comcast common stock monetized via an equity derivative prepaid forward contract are summarized in the following table:

47

		Hedge Price	Cap Price (b)
# of Shares Deliverable (a)	Maturity	per Share (a)	Low		High
16,139,868	2018	$30.84-$33.61	$	37.00	$	40.33
26,815,368	2021	$29.25- $35.47	$	43.88	$	44.80

(a) Represents the price below which we are provided with downside protection and above which we retain upside appreciation.  Also represents the price used in determining the cash proceeds payable to us at inception of the contracts.

(b) Represents the price up to which we receive the benefit of stock price appreciation.

Fair Value of Debt

At March 31, 2018, the fair value of our fixed rate debt of $18,168,414 was higher than its carrying value of $17,264,324 by $904,090.  The fair value of these financial instruments is estimated based on reference to quoted market prices for these or comparable securities.  Our floating rate borrowings bear interest in reference to current LIBOR-based market rates and thus their principal values approximate fair value.  The effect of a hypothetical 100 basis point decrease in interest rates prevailing at March 31, 2018 would increase the estimated fair value of our fixed rate debt by $483,406 to $18,651,820. This estimate is based on the assumption of an immediate and parallel shift in interest rates across all maturities.

Interest Rate Risk

In June 2016, a subsidiary of Cequel entered into two fixed to floating interest rate swaps. One fixed to floating interest rate swap is converting $750,000 from a fixed rate of 1.6655% to six-month LIBOR and a second tranche of $750,000 from a fixed rate of 1.68% to six-month LIBOR. The objective of these swaps is to adjust the proportion of total debt that is subject to fixed and variable interest rates.

These swap contracts are not designated as hedges for accounting purposes. Accordingly, the changes in the fair value of these interest rate swap contracts are recorded through the statement of operations. For the three months ended March 31, 2018, the Company recorded a loss on interest rate swap contracts of $31,922.

As of March 31, 2018, our outstanding interest rate swap contracts had an aggregate fair value and carrying value of $109,824 reflected in “Liabilities under derivative contracts” on our condensed consolidated balance sheet.

We do not hold or issue derivative instruments for trading or speculative purposes.

Item 4.        Controls and Procedures

Evaluation of Disclosure Controls and Procedures

An evaluation was carried out under the supervision and with the participation of Altice USA's management, including our Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures (as defined under SEC rules).  Based upon that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that the design and operation of these disclosure controls and procedures were effective as of March 31, 2018.

Changes in Internal Control

During the three months ended March 31, 2018, there were no changes in the Company's internal control over financial reporting that materially affected or are reasonably likely to materially affect the Company's internal control over financial reporting.

The Company plans to migrate Cequel’s customer billing system to the Cablevision billing system platform in 2018. Additionally, the Company plans to implement and upgrade certain other customer billing systems.

48

PART II.    OTHER INFORMATION

Item 1.        Legal Proceedings

Refer to Note 15 to our condensed consolidated financial statements included in this Quarterly Report on Form 10-Q for a discussion of our legal proceedings.

Item 6.        Exhibits

EXHIBIT NO.	DESCRIPTION
31.1	Section 302 Certification of the CEO.
31.2	Section 302 Certification of the CFO.
32	Section 906 Certifications of the CEO and CFO.
101	The following financial statements from Altice USA's Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2018 filed with the Securities and Exchange Commission on May 14, 2018, formatted in XBRL (eXtensible Business ReportingLanguage):  (i) the Condensed Consolidated Balance Sheets; (ii) the Condensed Consolidated Statements of Operations; (iii) the Condensed Consolidated Statements of Comprehensive Income (Loss); (iv) the Condensed Consolidated Statement of Stockholders' Equity; (v) the Condensed Consolidated Statements of Cash Flows; and (vi) the Notes to Condensed Consolidated Financial Statements.

49

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. 

		ALTICE USA, INC.
Date:	May 14, 2018		/s/ Charles Stewart
		By:	Charles Stewart as Co-President and Chief Financial Officer

50

EX-31.1

Exhibit 31.1

CERTIFICATION

I, Dexter Goei, Chairman and Chief Executive Officer and Director of Altice USA, Inc., certify that:    

1. I have reviewed this Quarterly Report on Form 10-Q of Altice USA, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(c) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	May 14, 2018	By:	/s/ Dexter Goei
			Dexter Goei
			Chairman, Chief Executive Officer and Director

EX-31.2

Exhibit 31.2

CERTIFICATION

I, Charles Stewart, Co-President and Chief Financial Officer of Altice USA, Inc., certify that:    

1. I have reviewed this Quarterly Report on Form 10-Q of Altice USA, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(c) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	May 14, 2018	By:	/s/ Charles Stewart
			Charles Stewart
			Co-President and Chief Financial Officer

EX-32

Exhibit 32 

Certifications 

Pursuant to 18 U.S.C. § 1350, each of the undersigned officers of Altice USA, Inc. ("Altice USA") hereby certifies, to such officer's knowledge, that Altice USAs' Quarterly Report on Form 10-Q for the quarter ended March 31, 2018 (the "Report") fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, and that the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Altice USA.

Date:	May 14, 2018	By:	/s/ Dexter Goei
			Dexter Goei
			Chairman, Chief Executive Officer and Director
Date:	May 14, 2018	By:	/s/ Charles Stewart
			Charles Stewart
			Co-President and Chief Financial Officer

XML

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2018	May 04, 2018
Document and Entity Information [Abstract]
Entity Registrant Name	Altice USA, Inc.
Entity Central Index Key	0001702780
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q1
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2018
Entity Common Stock, Shares Outstanding		737,068,966

XML

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Current Assets:
Cash and cash equivalents	$ 1,427,651	$ 329,848
Restricted cash	253	252
Accounts receivable, trade (less allowance for doubtful accounts of $10,481 and $13,420)	330,761	370,765
Prepaid expenses and other current assets	142,366	130,425
Amounts due from affiliates	21,146	19,764
Derivative contracts	9,211	52,545
Total current assets	1,931,388	903,599
Property, plant and equipment, net of accumulated depreciation of $2,983,696 and $2,599,579	5,819,544	6,023,826
Investment securities pledged as collateral	1,467,781	1,720,357
Derivative contracts	63,343	0
Other assets	122,786	57,904
Amortizable intangible assets, net of accumulated amortization	4,834,637	5,066,454
Indefinite-lived cable television franchises	13,020,081	13,020,081
Goodwill	8,019,849	8,019,861
Total assets	35,279,409	34,812,082
Current Liabilities:
Accounts payable	725,625	795,128
Interest	296,400	397,422
Employee related costs	104,824	147,727
Other accrued expenses	318,098	411,988
Amounts due to affiliates	11,078	10,998
Deferred revenue	122,395	111,197
Liabilities under derivative contracts	9,211	52,545
Credit facility debt	53,900	42,650
Senior notes and debentures	1,042,143	507,744
Capital lease obligations	7,699	9,539
Notes payable	69,084	33,424
Total current liabilities	2,760,457	2,520,362
Defined benefit plan obligations	97,908	103,163
Other liabilities	131,565	144,289
Deferred tax liability	4,729,578	4,769,286
Liabilities under derivative contracts	114,319	187,406
Collateralized indebtedness	1,351,271	1,349,474
Credit facility debt	5,636,102	4,600,873
Senior notes and debentures	14,767,823	15,352,688
Capital lease obligations	11,869	12,441
Notes payable	34,003	32,478
Deficit investment in affiliates	12,891	3,579
Total liabilities	29,647,786	29,076,039
Commitments and contingencies
Redeemable equity	234,637	231,290
Stockholders' Equity:
Preferred Stock, $.01 par value, 100,000,000 shares authorized, no shares issued and outstanding	0	0
Paid-in capital	4,682,646	4,665,229
Retained earnings	713,848	840,636
Total stockholders' equity before accumulated other comprehensive Income and non-controlling interest	5,403,865	5,513,236
Accumulated other comprehensive loss	(8,420)	(10,022)
Total stockholders' equity	5,395,445	5,503,214
Noncontrolling interest	1,541	1,539
Total stockholders' equity	5,396,986	5,504,753
Total liabilities and stockholders' equity	35,279,409	34,812,082
Common Class A
Stockholders' Equity:
Common stock	2,470	2,470
Common Class B
Stockholders' Equity:
Common stock	4,901	4,901
Common Class C
Stockholders' Equity:
Common stock	0	0
Customer relationships
Current Assets:
Amortizable intangible assets, net of accumulated amortization	4,367,742	4,561,863
Trade names
Current Assets:
Amortizable intangible assets, net of accumulated amortization	442,807	478,509
Amortizable intangible assets
Current Assets:
Amortizable intangible assets, net of accumulated amortization	$ 24,088	$ 26,082

XML

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Current Assets:
Accounts receivable, trade allowance for doubtful accounts	$ 10,481	$ 13,420
Property, plant and equipment, accumulated depreciation	2,983,696	2,599,579
Amortizable intangible assets, accumulated amortization	$ 2,240,390	$ 2,008,573
Stockholders' Equity:
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	100,000,000	100,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common Class A
Stockholders' Equity:
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	4,000,000,000	4,000,000,000
Common stock, shares issued (in shares)	246,982,292	246,982,292
Common stock, shares outstanding (in shares)	246,982,292	246,982,292
Common Class B
Stockholders' Equity:
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	1,000,000,000	1,000,000,000
Common stock, shares issued (in shares)	490,086,674	490,086,674
Common stock, shares outstanding (in shares)	490,086,674	490,086,674
Common Class C
Stockholders' Equity:
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	4,000,000,000	4,000,000,000
Common stock, shares issued (in shares)	0	0
Common stock, shares outstanding (in shares)	0	0
Customer relationships
Current Assets:
Amortizable intangible assets, accumulated amortization	$ 1,603,142	$ 1,409,021
Trade names
Current Assets:
Amortizable intangible assets, accumulated amortization	624,276	588,574
Amortizable intangible assets
Current Assets:
Amortizable intangible assets, accumulated amortization	$ 12,972	$ 10,978

XML

CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income Statement [Abstract]
Revenue (including revenue from affiliates of $125 and $141, respectively) (See Note 14)	$ 2,329,714	$ 2,302,259
Operating expenses:
Programming and other direct costs (including charges from affiliates of $1,154 and $735, respectively) (See Note 14)	787,361	758,352
Other operating expenses (including charges from affiliates of $7,994 and $7,298, respectively) (See Note 14)	583,023	608,144
Restructuring and other expense	3,587	76,929
Depreciation and amortization (including impairments)	642,705	608,724
Total operating expenses	2,016,676	2,052,149
Operating income	313,038	250,110
Other income (expense):
Interest expense (including interest expense to affiliates and related parties of$47,588 in 2017) (See Note 14)	(377,258)	(433,294)
Interest income	3,103	232
Gain (loss) on investments and sale of affiliate interests, net	(248,602)	131,658
Gain (loss) on derivative contracts, net	168,352	(71,044)
Gain (loss) on interest rate swap contracts	(31,922)	2,342
Loss on extinguishment of debt and write-off of deferred financing costs	(4,705)	0
Other expense, net	(11,658)	(2,100)
Total other income (expense)	(502,690)	(372,206)
Loss before income taxes	(189,652)	(122,096)
Income tax benefit	60,703	45,908
Net loss	(128,949)	(76,188)
Net income attributable to noncontrolling interests	(2)	(237)
Net loss attributable to Altice USA, Inc. stockholders	$ (128,951)	$ (76,425)
Basic and diluted net loss per share (in dollars per share)	$ (0.17)	$ (0.12)
Basic and diluted weighted average common shares (in shares)	737,069	649,525

XML

CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income Statement [Abstract]
Revenue from affiliates	$ 125	$ 141
Programming and other direct costs from affiliates	1,154	735
Other operating expense from affiliates	7,994	7,298
Interest expense to related parties and affiliates	$ 0	$ 47,588

XML

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statement of Comprehensive Income [Abstract]
Net loss	$ (128,949)	$ (76,188)
Defined benefit pension plans:
Unrecognized actuarial gain	4,551	0
Applicable income taxes	(1,228)	0
Unrecognized gain arising during period, net of income taxes	3,323	0
Settlement losses included in other expense, net	606	0
Applicable income taxes	(164)	0
Settlement losses included in other expense, net, net of income taxes	442	0
Other comprehensive gain	3,765	0
Comprehensive loss	(125,184)	(76,188)
Comprehensive income attributable to noncontrolling interests	(2)	(237)
Comprehensive loss attributable to Altice USA, Inc. stockholders	$ (125,186)	$ (76,425)

XML

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statement of Comprehensive Income [Abstract]
Settlement loss related to pension plan	$ 606	$ 0

XML

CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY - 3 months ended Mar. 31, 2018 - USD ($) $ in Thousands	Total	Total Stockholders' Equity	Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (loss)	Non-controlling Interest	Common Class A Common Stock	Common Class B Common Stock	ATS Acquisition	ATS Acquisition Total Stockholders' Equity	ATS Acquisition Paid-in Capital	ATS Acquisition Retained Earnings
Beginning balance (As Reported) at Dec. 31, 2017	$ 5,495,840	$ 5,494,301	$ 4,642,128	$ 854,824	$ (10,022)	$ 1,539	$ 2,470	$ 4,901
Beginning balance (Restatement Adjustment)									$ (3,753)	$ (3,753)	$ 23,101	$ (26,854)
Beginning balance (Restatement Adjustment, Impact of ASC 606)	12,666	12,666		12,666
Beginning balance at Dec. 31, 2017	5,504,753	5,503,214	4,665,229	840,636	(10,022)	1,539	2,470	4,901
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss attributable to stockholders	(128,951)	(128,951)		(128,951)
Net income attributable to noncontrolling interests	2					2
Pension liability adjustments, net of income taxes	3,765	3,765			3,765
Share-based compensation expense	21,623	21,623	21,623
Change in fair value of redeemable equity	(3,347)	(3,347)	(3,347)
Other changes to equity	(859)	(859)	(859)	0
Adoption of ASU No. 2018-02				2,163	(2,163)
Ending balance at Mar. 31, 2018	$ 5,396,986	$ 5,395,445	$ 4,682,646	$ 713,848	$ (8,420)	$ 1,541	$ 2,470	$ 4,901

XML

CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash flows from operating activities:
Net loss	$ (128,949)	$ (76,188)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization (including impairments)	642,705	608,724
Equity in net loss of affiliates	10,442	2,757
Loss (gain) on investments and sale of affiliate interests, net	248,602	(131,658)
Loss (gain) on derivative contracts, net	(168,352)	71,044
Loss on extinguishment of debt and write-off of deferred financing costs	4,705	0
Amortization of deferred financing costs and discounts (premiums) on indebtedness	16,950	1,812
Settlement loss related to pension plan	606	0
Share-based compensation expense	21,623	7,848
Deferred income taxes	(65,833)	(52,184)
Provision for doubtful accounts	13,500	15,694
Change in assets and liabilities, net of effects of acquisitions and dispositions:
Accounts receivable, trade	25,207	34,707
Other receivables	(28,759)	0
Prepaid expenses and other assets	9,609	(10,113)
Amounts due from and due to affiliates	(1,465)	(131,564)
Accounts payable	11,297	147,999
Accrued liabilities	(224,787)	(253,707)
Deferred revenue	11,929	11,257
Liabilities related to interest rate swap contracts	31,922	(2,342)
Net cash provided by operating activities	430,952	244,086
Cash flows from investing activities:
Payment for acquisition, net of cash acquired	(28,940)	(43,608)
Sale of affiliate interests	(3,537)	0
Capital expenditures	(257,615)	(257,427)
Proceeds related to sale of equipment, including costs of disposal	965	596
Increase in other investments	(2,500)	(550)
Additions to other intangible assets	0	(183)
Net cash used in investing activities	(291,627)	(301,172)
Cash flows from financing activities:
Proceeds from credit facility debt, net of discounts	1,642,500	225,000
Repayment of credit facility debt	(610,663)	(183,288)
Issuance of senior notes and debentures	1,000,000	0
Proceeds from collateralized indebtedness	0	156,136
Repayment of collateralized indebtedness and related derivative contracts	0	(150,084)
Redemption of senior notes, including premiums and fees	(1,057,019)	0
Proceeds from notes payable	6,812	0
Principal payments on capital lease obligations	(3,067)	(4,207)
Additions to deferred financing costs	(19,225)	(1,290)
Other	(859)	0
Net cash provided by financing activities	958,479	42,267
Net increase (decrease) in cash and cash equivalents	1,097,804	(14,819)
Cash, cash equivalents and restricted cash at beginning of year	330,100	503,093
Cash, cash equivalents and restricted cash at end of period	$ 1,427,904	$ 488,274

XML

DESCRIPTION OF BUSINESS AND RELATED MATTERS

3 Months Ended

Mar. 31, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

DESCRIPTION OF BUSINESS AND RELATED MATTERS

DESCRIPTION OF BUSINESS AND RELATED MATTERS

The Company and Related Matters

Altice USA, Inc. ("Altice USA" or the "Company") was incorporated in Delaware on September 14, 2015. As of March 31, 2018, Altice USA is majority‑owned by Altice N.V., a public company with limited liability (naamloze vennootshcap) under Dutch law. Upon the completion of the Altice N.V. distribution discussed below, the Company will no longer be majority-owned by Altice N.V.

The Company provides broadband communications and video services in the United States. It delivers broadband, pay television, telephony services, proprietary content and advertising services to residential and business customers.

Altice N.V., through a subsidiary, acquired Cequel Corporation ("Cequel" or "Suddenlink") on December 21, 2015 and Cequel was contributed to Altice USA on June 9, 2016. Altice USA acquired Cablevision Systems Corporation ("Cablevision" or "Optimum") on June 21, 2016.

The Company classifies its operations into two reportable segments: Cablevision, which operates in the New York metropolitan area, and Cequel, which principally operates in markets in the south‑central United States.

The accompanying condensed combined consolidated financial statements ("condensed consolidated financial statements") include the accounts of the Company and all subsidiaries in which the Company has a controlling interest and gives effect to the ATS Acquisition discussed below on a combined basis. All significant inter-company accounts and transactions have been eliminated in consolidation.

The accompanying condensed consolidated operating results for the three months ended March 31, 2017 reflect the retrospective adoption of Accounting Standards Update ("ASU") No. 2014-09, Revenue from Contracts with Customers and ASU No. 2017‑07 Compensation-Retirement Benefits (Topic 715). See Note 3 for further details of the impact on the Company's historical financial statements.

In June 2017, the Company completed its initial public offering ("IPO") of 71,724,139 shares of its Class A common stock. The Company’s Class A common stock began trading on June 22, 2017, on the New York Stock Exchange under the symbol "ATUS".

Acquisition of Altice Technical Services US Corp

ATS was formed in 2017 to provide network construction and maintenance services and commercial and residential installations, disconnections, and maintenance. The Company believes the services it receives from ATS are of higher quality and at a lower cost than the Company could achieve without ATS, including for the construction of its new fiber-to-the home ("FTTH") network.

During the second quarter of 2017, a substantial portion of the Company's technical workforce at the Cablevision segment either accepted employment with ATS or became employees of ATS and ATS commenced operations and began to perform services for the Company. A substantial portion of the Cequel segment technical workforce became employees of ATS in December 2017.

In January 2018, the Company acquired 70% of the equity interests in Altice Technical Services US Corp. ("ATS") for $1.00 (the "ATS Acquisition") and the Company became the owner of 100% of the equity interests in ATS in March 2018. ATS was previously owned by Altice N.V. and a member of ATS's management through a holding company. As the acquisition is a combination of businesses under common control, the Company combined the results of operations and related assets and liabilities of ATS for all periods since its formation. See Note 3 for the impact of the ATS Acquisition on the Company's condensed consolidated balance sheet as of December 31, 2017.

Altice N.V. Distribution

On January 8, 2018, Altice N.V. announced plans for the separation of the Company from Altice N.V. Altice N.V. will distribute substantially all of its equity interest in the Company through a distribution in kind to holders of Altice N.V.'s common shares A and common shares B (the “Distribution”). Following the Distribution, Altice N.V. will no longer own a controlling equity interest in the Company, and the Company will operate independently from Altice N.V.

The implementation of the Distribution is expected to be subject to certain conditions precedent being satisfied or waived. Although Altice N.V. and the Company have not yet negotiated the final terms of the Distribution and related transactions, the Company expects that the following will be conditions to the Distribution:

• Approval of Altice N.V. shareholders of (i) the distribution in kind and (ii) the board resolution approving the change in identity and character of the business of Altice N.V. resulting from the Distribution;

• Receipt of certain U.S. regulatory approvals, which could take up to 180 days;

• The Registration Statement filed on January 8, 2018 being declared effective by the U.S. Securities and Exchange Commission (the ‘‘Commission’’);

• The entry into the Master Separation Agreement and the entry into, amendments to or termination of various arrangements between Altice N.V. and the Company, such as a license to use the Altice brand, the stockholders’ agreement among Altice USA, Altice N.V. and certain other parties and the management agreement pursuant to which the Company pays a quarterly management fee to Altice N.V.; and

• The declaration and payment of a one-time $1.5 billion dividend to Altice USA stockholders as of a record date prior to the Distribution (the ‘‘Pre-Distribution Dividend’’).

Prior to Altice N.V.'s announcement of the Distribution, the Board of Directors of Altice USA, acting through its independent directors, approved in principle the payment of the Pre-Distribution Dividend to all shareholders immediately prior to completion of the separation. Formal approval of the Pre-Distribution Dividend and setting of a record date are expected to occur in the second quarter of 2018. The payment of the Pre-Distribution Dividend will be funded with available Cablevision revolving facility capacity and available cash from new financings, completed in January 2018, at CSC Holdings LLC, a wholly-owned subsidiary of Cablevision. In addition, the Board of Directors of Altice USA has authorized a share repurchase program of $2.0 billion, effective following completion of the separation.

In connection with the Distribution, it is expected that the Management Advisory and Consulting Services Agreement with Altice N.V. which provides certain consulting, advisory and other services will be terminated. Compensation under the terms of the agreement is an annual fee of $30,000 paid by the Company.

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

3 Months Ended

Mar. 31, 2018

Accounting Policies [Abstract]

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

The accompanying unaudited condensed consolidated financial statements of the Company 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, 2017.

The financial statements presented in this report are unaudited; however, in the opinion of management, such financial statements include all adjustments, consisting of normal recurring adjustments, necessary for a fair presentation of the results for the periods presented.

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, 2018.

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 revenue and expenses during the reporting period.  Actual results could differ from those estimates.

Recently Adopted Accounting Pronouncements

In February 2018, the FASB issued ASU No. 2018-02, Income Statement—Reporting Comprehensive Income (Topic 220) Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. The primary provision of ASU No. 2018-02 allows for the reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act. ASU No. 2018-02 also requires certain disclosures about stranded tax effects. ASU No. 2018‑02 is effective for the Company on January 1, 2019, with early adoption permitted and will be applied either in the period of adoption or retrospectively to each period (or periods) in which the effect of the change in the U.S. federal corporate income tax rate in the Tax Cuts and Jobs Act is recognized. The Company elected to adopt ASU No. 2018-02 during the first quarter of 2018. The adoption resulted in the reclassification of stranded tax amounts of $2,163 associated with net unrecognized losses from the Company's pension plans from accumulated other comprehensive loss to retained earnings.

In May 2017, the FASB issued ASU No. 2017‑09, Compensation- Stock Compensation (Topic 718). ASU No. 2017‑09 provides clarity and guidance on which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting in Topic 718. ASU No. 2017‑09 was adopted by the Company on January 1, 2018 and had no impact to the Company's condensed consolidated financial statements.

In March 2017, the FASB issued ASU No. 2017‑07 Compensation-Retirement Benefits (Topic 715). ASU No. 2017‑07 requires that an employer disaggregate the service cost component from the other components of net benefit cost. It also provides guidance on how to present the service cost component and the other components of net benefit cost in the income statement and what component of net benefit cost is eligible for capitalization. ASU No. 2017‑07 was adopted by the Company on January 1, 2018 and was applied retrospectively. As a result of the adoption, the Company reclassified the non-service cost components of the Company's pension expense for the three months ended March 31, 2017 from other operating expenses to other income (expense), net. The Company elected to apply the practical expedient which allowed it to reclassify amounts disclosed previously in the benefits plan note as the basis for applying retrospective presentation for comparative periods, as the Company determined it was impracticable to disaggregate the cost components for amounts capitalized and amortized in those periods. See Note 3 for information on the impact of the adoption of ASU No. 2017-07.

In January 2017, the FASB issued ASU No. 2017‑01, Business Combinations (Topic 805), Clarifying the Definition of a Business, which amends Topic 805 to interpret the definition of a business by adding guidance to assist in evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The Company adopted the new guidance on January 1, 2018 and had no impact to the Company's condensed consolidated financial statements.

In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments - Overall (Subtopic 825-10), Recognition and Measurement of Financial Assets and Financial Liabilities.  ASU No. 2016-01 modifies how entities measure certain equity investments and also modifies the recognition of changes in the fair value of financial liabilities measured under the fair value option. Entities will be required to measure equity investments that do not result in consolidation and are not accounted for under the equity method at fair value and recognize any changes in fair value in net income. For financial liabilities measured using the fair value option, entities will be required to record changes in fair value caused by a change in instrument-specific credit risk (own credit risk) separately in other comprehensive income. ASU No. 2016-01 was adopted by the Company on January 1, 2018 and had no impact to the Company's condensed consolidated financial statements.

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers ("ASC 606"), 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. ASC 606 replaced most existing revenue recognition guidance in GAAP and allowed the use of either the retrospective or cumulative effect transition method.

In December 2016, the FASB issued ASU No. 2016-20, Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers, in order to clarify the Codification and to correct any unintended application of the guidance. The amendments in this update affected the guidance in ASC 606. ASC 606 was adopted by the Company on January 1, 2018 on a full retrospective basis, which required the Company to reflect the impact of the updated guidance for all periods presented. The adoption of ASC 606 did not have a material impact on the Company’s financial position or results of operations. See Note 3 for information on the impact of the adoption of ASC 606.

In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments which clarifies how entities should classify certain cash receipts and cash payments on the statement of cash flows. ASU No. 2016-15 also clarifies how the predominance principle should be applied when cash receipts and cash payments have aspects of more than one class of cash flows. The Company adopted the new guidance on January 1, 2018 and had no impact to the Company's condensed consolidated financial statements.

Recently Issued But Not Yet Adopted Accounting Pronouncements

In January 2017, the FASB issued ASU No. 2017‑04, Intangibles-Goodwill and Other (Topic 350). ASU No. 2017‑04 simplifies the subsequent measurement of goodwill by removing the second step of the two‑step impairment test. The amendment requires an entity to perform its annual, or interim goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity still has the option to perform the qualitative assessment for a reporting unit to determine if the quantitative impairment test is necessary. ASU No. 2017‑04 becomes effective for the Company on January 1, 2020 with early adoption permitted and will be applied prospectively.

In February 2016, the FASB issued ASU No. 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. The Company has not yet completed the evaluation of the effect that ASU No. 2016-02 will have on its consolidated financial statements.

Reclassifications

Certain reclassifications have been made to the 2017 financial statements to conform to the 2018 presentation.

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CHANGE IN ACCOUNTING POLICIES AND ATS ACQUISITION

3 Months Ended

Mar. 31, 2018

Accounting Changes and Error Corrections [Abstract]

CHANGE IN ACCOUNTING POLICIES AND ATS ACQUISITION

CHANGE IN ACCOUNTING POLICIES AND ATS ACQUISITION

Adoption of ASC 606 - Revenue from Contracts with Customers

On January 1, 2018, the Company adopted the guidance pursuant to ASC 606. The Company elected to apply the guidance on a full retrospective basis, which required the Company to reflect the impact of the updated guidance for all periods presented. The adoption of the guidance resulted in the deferral of certain installation revenue, the deferral of certain commission expenses, and a reduction of revenue due to the reclassification of certain third party giveaways and incentives from operating expense. Additionally, the Company made changes in the composition of revenue resulting from the allocation of value related to bundled services sold to residential customers at a discount.

Installation Services Revenue

Pursuant to ASC 606, the Company's installation services revenue is deferred and recognized over the benefit period. For residential customers, the benefit period is less than one year. For business and wholesale customers, the benefit period is the contract term. Prior to the adoption of ASC 606, the Company recognized installation services revenue for residential and small and medium-sized business ("SMB") customers when installations were completed. As a result of the deferral of installation services revenue for residential and SMB customers, the Company recognized contract liabilities of $6,978 and recorded a cumulative effect adjustment of $5,093 (net of tax of $1,885) to retained earnings. The accounting for installation services revenue related to business and wholesale customers has not changed.

Commission Expenses

Pursuant to ASC 606, the Company defers commission expenses related to obtaining a contract with a customer when the expected period of benefit is greater than one year and amortizes these costs over the average contract term. For commission expenses related to customer contracts with a term of one year or less, the Company is utilizing the practical expedient and is recognizing the costs when incurred.  Prior to the adoption of ASC 606, the Company recognized commission expenses related to the sale of its services when incurred. As a result of the change in the timing of recognition of these commission expenses, the Company recognized contract assets of $24,329 and recorded a cumulative effect adjustment of $17,759 (net of tax of $6,570) to retained earnings.

Third Party Product Giveaways and Incentives

When the Company acts as the agent in providing certain product giveaways or incentives, revenue is recorded net of the costs of the giveaways and incentives. For the three months ended March 31, 2017, costs of $3,417 for the giveaways and incentives recorded in other operating expense have been reclassified to revenue.

Bundled Services

The Company provides bundled services at a discounted rate to its customers. Under ASC 606, revenue should be allocated to separate performance obligations within a bundled offering based on the relative stand-alone selling price of each service within the bundle.In connection with the adoption of ASC 606, the Company revised the amounts allocated to each performance obligation within its bundled offerings which reduced previously reported revenue for telephony services and increased previously reported revenue allocated to pay television and broadband services.

Adoption of ASU No. 2017-07 - Compensation-Retirement Benefits (Topic 715)

On January 1, 2018, the Company adopted the guidance pursuant to ASU No. 2017‑07. ASU No. 2017‑07 requires that an employer disaggregate the service cost component from the other components of net benefit cost. In connection with the adoption of ASU No. 2017‑07, the Company retroactively reclassified certain pension costs from other operating expenses to other income (expense), net. The adoption of ASU No. 2017-07 had no impact on the Company's condensed consolidated balance sheet.

Acquisition of ATS

As discussed in Note 1, the Company completed the ATS Acquisition in the first quarter of 2018. ATS was previously owned by Altice N.V. and a member of ATS's management through a holding company. As the acquisition is a combination of businesses under common control, the Company combined the results of operations and related assets and liabilities of ATS for all periods since the formation of ATS, including goodwill of $23,101, representing the amount previously transferred to ATS.

The following table summarizes the impact of adopting ASC 606 and the impact of the ATS Acquisition on the Company's condensed consolidated balance sheet: 

	December 31, 2017
	As Reported		Impact of ASC 606		Impact of ATS Acquisition			As Adjusted
Cash and cash equivalents	$	273,329	$	—	$	56,519		$	329,848
Other current assets	580,231		14,068		(20,548		)	573,751
Property, plant and equipment, net	6,063,829		—		(40,003		)	6,023,826
Goodwill	7,996,760		—		23,101			8,019,861
Other assets, long-term	19,861,076		10,261		(6,541		)	19,864,796
Total assets	$	34,775,225	$	24,329	$	12,528		$	34,812,082
Current liabilities	$	2,492,983	$	6,978	$	20,401		$	2,520,362
Deferred tax liability, long-term	4,775,115		4,685		(10,514		)	4,769,286
Liabilities, long-term	21,779,997		—		6,394			21,786,391
Total liabilities	29,048,095		11,663		16,281			29,076,039
Redeemable equity	231,290		—		—			231,290
Paid-in capital	4,642,128		—		23,101			4,665,229
Retained earnings	854,824		12,666		(26,854		)	840,636
Total stockholders' equity	5,495,840		12,666		(3,753		)	5,504,753
Total liabilities and stockholders' equity	$	34,775,225	$	24,329	$	12,528		$	34,812,082

The ATS Acquisition did not have an impact on the Company's condensed consolidated statement of operations for the three months ended March 31, 2017. The following table summarizes the impact of adopting ASC 606 and ASU No. 2017-07 on the Company's condensed consolidated statement of operations:

	Three Months Ended March 31, 2017
	As Reported			Impact of ASC 606			Impact of ASU No. 2017-07			As Adjusted
Residential:
Pay TV	$	1,071,361		$	12,517		$	—		$	1,083,878
Broadband	611,769			14,149			—			625,918
Telephony	210,873			(29,912		)	—			180,961
Business services and wholesale	319,591			(171		)	—			319,420
Advertising	83,361			—			—			83,361
Other	8,721			—			—			8,721
Total revenue	2,305,676			(3,417		)	—			2,302,259
Programming and other direct costs	758,352			—			—			758,352
Other operating expenses	613,437			(3,417		)	(1,876		)	608,144
Restructuring and other expense	76,929			—			—			76,929
Depreciation and amortization	608,724			—			—			608,724
Operating income	248,234			—			1,876			250,110
Other expense, net	(370,330		)	—			(1,876		)	(372,206		)
Loss before income taxes	(122,096		)	—			—			(122,096		)
Income tax benefit	45,908			—			—			45,908
Net loss	$	(76,188	)	$	—		$	—		$	(76,188	)

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NET LOSS PER SHARE ATTRIBUTABLE TO STOCKHOLDERS

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

NET LOSS PER SHARE ATTRIBUTABLE TO STOCKHOLDERS

NET LOSS PER SHARE ATTRIBUTABLE TO STOCKHOLDERS

Basic net income (loss) per common share attributable to Altice USA stockholders is computed by dividing net income (loss) attributable to Altice USA stockholders by the weighted average number of common shares outstanding during the period.  Diluted income per common share attributable to Altice USA stockholders reflects the dilutive effects of stock options. Diluted net loss per common share attributable to Altice USA stockholders excludes the effects of common stock equivalents as they are anti-dilutive.

The weighted average number of shares used to compute basic and diluted net loss per share for the three months ended March 31, 2017 reflect the retroactive impact of certain organizational transactions that occurred prior to the Company's IPO.

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REVENUE AND CONTRACT ASSETS

3 Months Ended

Mar. 31, 2018

Revenue from Contract with Customer [Abstract]

REVENUE AND CONTRACT ASSETS

REVENUE AND CONTRACT ASSETS

Revenue Recognition

Residential Services

The Company derives revenue through monthly charges to residential customers of its pay television, broadband, and telephony services, including installation services. In addition, the Company derives revenue from digital video recorder ("DVR"), video-on-demand ("VOD"), pay‑per‑view, and home shopping commissions which are reflected in "Residential pay TV" revenues. The Company recognizes pay television, broadband, and telephony revenues as the services are provided to a customer on a monthly basis. Revenue from the sale of bundled services at a discounted rate is allocated to each product based on the standalone selling price of each performance obligation within the bundled offer. The standalone selling price requires judgment and is typically determined based on the current prices at which the separate services are sold by the Company. Installation revenue for the Company's residential services is deferred and recognized over the benefit period, which is estimated to be less than one year. The estimated benefit period takes into account both quantitative and qualitative factors including the significance of average installation fees to total recurring revenue per customer.

The Company is assessed non-income related taxes by governmental authorities, including franchising authorities (generally under multi-year agreements), and collects such taxes from its customers.  In instances where the tax is being assessed directly on the Company, amounts paid to the governmental authorities are recorded as programming and other direct costs and amounts received from the customers are recorded as revenue. For the three months ended March 31, 2018 and 2017 the amount of franchise fees and certain other taxes and fees included as a component of revenue aggregated $63,830 and $64,986, respectively.

Business and Wholesale Services

The Company derives revenue from the sale of products and services to both large enterprise and SMB customers, including broadband, telephony, networking, and pay television services reflected in "Business services and wholesale" revenues. The Company's business services also include Ethernet, data transport, and IP-based virtual private networks. The Company also provides managed services to businesses, including hosted telephony services (cloud based SIP-based private branch exchange), managed Wi-Fi, managed desktop and server backup and managed collaboration services including audio and web conferencing. The Company also offers fiber-to-the-tower services to wireless carriers for cell tower backhaul and enable wireline communications service providers to connect to customers that their own networks do not reach. The Company recognizes revenues for these services as the services are provided to a customer on a monthly basis.

Substantially all of our SMB customers are billed monthly and large enterprise customers are billed in accordance with the terms of their contracts which is typically also on a monthly basis. Contracts with large enterprise customers typically range from three to five years. Installation revenue related to our large enterprise customers is deferred and recognized over the average contract term. Installation revenue related to SMB customers is deferred and recognized over the benefit period, which is less than a year. The estimated benefit period for SMB customers takes into account both quantitative and qualitative factors including the significance of average installation fees to total recurring revenue per customer.

Advertising

As part of the agreements under which the Company acquires pay television programming, the Company typically receives an allocation of scheduled advertising time during such programming into which the Company's cable systems can insert commercials. In several of the markets in which the Company operates, it has entered into agreements commonly referred to as interconnects with other cable operators to jointly sell local advertising. In some of these markets, the Company represents the advertising sales efforts of other cable operators; in other markets, other cable operators represent the Company. Advertising revenues are recognized when commercials are aired. Arrangements in which the Company controls the sale of advertising and acts as the principal to the transaction, the Company recognizes revenue earned from the advertising customer on a gross basis and the amount remitted to the distributor as an operating expense. Arrangements in which the Company does not control the sale of advertising and acts as an agent to the transaction, the Company recognizes revenue net of any fee remitted to the distributor.

The Company's advanced advertising businesses provide data-driven, audience-based advertising solutions using advanced analytics tools that provide granular measurement of consumer groups, accurate hyper-local ratings and other insights into target audience behavior not available through traditional sample-based measurement services. Revenue earned from the Company's advanced advertising businesses are recognized when services are provided.

Other

Revenues derived from other sources are recognized when services are provided or events occur.

Contract Assets

Incremental costs incurred in obtaining a contract with a customer are deferred and recorded as a contract asset if the period of benefit is expected to be greater than one year. Sales commissions for enterprise and certain SMB customers are deferred and amortized over the average contract term. For sales commission expenses related to residential and SMB customers with a term of one year or less, the Company is utilizing the practical expedient and is recognizing the costs when incurred.  Cost of fulfilling a contract with a customer are deferred and recorded as a contract asset if they generate or enhance resources of the Company that will be used in satisfying future performance obligations and are expected to be recovered. Installation costs related to residential and SMB customers that are not capitalized as part of the initial deployment of new customer premise equipment are expensed as incurred pursuant to industry-specific guidance.

The following table provides information about contracts assets and contract liabilities related to contracts with customers:

	March 31, 2018		December 31, 2017, as adjusted
Contract assets (a)	$	23,682	$	24,329
Deferred revenue (b)	129,560		117,679

(a) Contract assets include primarily sales commissions for enterprise customers that are deferred and amortized over the average contract term.

(b) Deferred revenue represents payments received from customers for services that have yet to be provided and installation revenue which is deferred and recognized over the benefit period. The majority of the Company's deferred revenue represents payments for services for up to one month in advance from residential and SMB customers which is realized within the following month as services are performed.

A significant portion of our revenue is derived from residential and SMB customer contracts which are month-to month. As such, the amount of revenue related to unsatisfied performance obligations is not necessarily indicative of the future revenue to be recognized from our existing customer base. Contracts with enterprise customers generally range from three to five years, and services may only be terminated in accordance with the contractual terms.

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SUPPLEMENTAL CASH FLOW INFORMATION

3 Months Ended

Mar. 31, 2018

Supplemental Cash Flow Elements [Abstract]

SUPPLEMENTAL CASH FLOW INFORMATION

SUPPLEMENTAL CASH FLOW INFORMATION

The Company considers the balance of its investment in funds that substantially hold securities that mature within three months or less from the date the fund purchases these securities to be cash equivalents.  The carrying amount of cash and cash equivalents either approximates fair value due to the short-term maturity of these instruments or are at fair value.

The Company's non-cash investing and financing activities and other supplemental data were as follows:

	Three Months Ended March 31,
	2018			2017
Non-Cash Investing and Financing Activities:
Continuing Operations:
Property and equipment accrued but unpaid	$	91,036		$	61,170
Notes payable to vendor	30,237			—
Capital lease obligations	656			—
Supplemental Data:
Cash interest paid	464,763			524,864
Income taxes paid (refunded), net	(1,027		)	1,553

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RESTRUCTURING COSTS AND OTHER EXPENSE

3 Months Ended

Mar. 31, 2018

Restructuring and Related Activities [Abstract]

RESTRUCTURING COSTS AND OTHER EXPENSE

RESTRUCTURING COSTS AND OTHER EXPENSE

Restructuring

Beginning in the first quarter of 2016, the Company commenced its restructuring initiatives (the "2016 Restructuring Plan") that are intended to simplify the Company's organizational structure.

The following table summarizes the activity for the 2016 Restructuring Plan during 2018:
	Severance and Other Employee Related Costs			Facility Realignment and Other Costs			Total
Accrual balance at December 31, 2017	$	113,474		$	9,626		$	123,100
Restructuring charges	1,818			(497		)	1,321
Payments and other	(38,469		)	(4,475		)	(42,944		)
Accrual balance at March 31, 2018	$	76,823		$	4,654		$	81,477

The Company recorded restructuring charges of $76,751 for the three months ended March 31, 2017 relating to the 2016 Restructuring Plan.

Cumulative costs to date relating to the 2016 Restructuring Plan amounted to $310,294 and $67,526 for our Cablevision segment and Cequel segments, respectively.

Transaction Costs

The Company incurred transaction costs of $2,266 for the three months ended March 31, 2018 relating to the Distribution discussed in Note 1 and $178 for the three months ended March 31, 2017 related to the acquisition of a business.

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INTANGIBLE ASSETS

3 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

INTANGIBLE ASSETS

INTANGIBLE ASSETS

The following table summarizes information relating to the Company's acquired amortizable intangible assets: 

	March 31, 2018							December 31, 2017
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Estimated Useful Lives
Customer relationships	$	5,970,884	$	(1,603,142	)	$	4,367,742	$	5,970,884	$	(1,409,021	)	$	4,561,863	8 to 18 years
Trade names	1,067,083		(624,276		)	442,807		1,067,083		(588,574		)	478,509		2 to 5 years
Other amortizable intangibles	37,060		(12,972		)	24,088		37,060		(10,978		)	26,082		1 to 15 years
	$	7,075,027	$	(2,240,390	)	$	4,834,637	$	7,075,027	$	(2,008,573	)	$	5,066,454

Amortization expense for the three months ended March 31, 2018 and 2017 aggregated $231,817, and $238,019, respectively.

The following table summarizes information relating to the Company's acquired indefinite-lived intangible assets:

	March 31, 2018						December 31, 2017
	Cablevision		Cequel		Total		Cablevision		Cequel		Total
Cable television franchises	$	8,113,575	$	4,906,506	$	13,020,081	$	8,113,575	$	4,906,506	$	13,020,081
Goodwill	5,866,108		2,153,741		8,019,849		5,866,120		2,153,741		8,019,861
Total	$	13,979,683	$	7,060,247	$	21,039,930	$	13,979,695	$	7,060,247	$	21,039,942

The carrying amount of goodwill is presented below:

Gross goodwill as of December 31, 2017, as reported	$	7,996,760
ATS goodwill included in Cablevision segment (See Note 3 for further details)	23,101
Gross goodwill as of December 31, 2017, as adjusted	8,019,861
Adjustment to purchase accounting relating to business acquired in fourth quarter of 2017	(12		)
Net goodwill as of March 31, 2018	$	8,019,849

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DEBT

3 Months Ended

Mar. 31, 2018

Debt Disclosure [Abstract]

DEBT

DEBT

The following table provides details of the Company's outstanding credit facility debt:

			March 31, 2018				December 31, 2017
	Maturity Date	Interest Rate	Principal Amount		Carrying Amount (a)		Principal Amount		Carrying Amount (a)
CSC Holdings Restricted Group:
Revolving Credit Facility (b)	$20,000 on October 9, 2020, remaining balance on November 30, 2021	—%	$	—	$	—	$	450,000	$	425,488
Term Loan Facility	July 17, 2025	4.04%	2,977,500		2,960,859		2,985,000		2,967,818
Incremental Term Loan Facility	January 25, 2026	4.28%	1,500,000		1,481,825		—		—
Cequel:
Revolving Credit Facility (c)	$65,000 on November 30, 2021, and remaining balance on April 5, 2023	—	—		—		—		—
Term Loan Facility	July 28, 2025	4.13%	1,255,513		1,247,318		1,258,675		1,250,217
			$	5,733,013	5,690,002		$	4,693,675	4,643,523
Less: Current portion					53,900				42,650
Long-term debt					$	5,636,102			$	4,600,873

(a) The carrying amount is net of the unamortized deferred financing costs and/or discounts/premiums.

(b) At March 31, 2018, $115,973 of the revolving credit facility was restricted for certain letters of credit issued on behalf of the Company and $2,184,027 of the facility was undrawn and available, subject to covenant limitations.

(c) At March 31, 2018, $13,500 of the revolving credit facility was restricted for certain letters of credit issued on behalf of the Company and $336,500 of the facility was undrawn and available, subject to covenant limitations.

In January 2018, CSC Holdings borrowed $150,000 under its revolving credit facility and entered into a new $1,500,000 incremental term loan facility (the "Incremental Term Loan") under its existing CVC Credit Facilities Agreement. The Incremental Term Loan was priced at 99.5% and will mature on January 25, 2026. The Incremental Term Loan is comprised of eurodollar borrowings or alternate base rate borrowings, and bears interest at a rate per annum equal to the adjusted LIBO rate or the alternate base rate, as applicable, plus the applicable margin, where the applicable margin is (i) with respect to any alternate base rate loan, 1.50% per annum and (ii) with respect to any eurodollar loan, 2.50% per annum.

The Company made a voluntary repayment of $600,000 under the CSC Holdings revolving credit facility in January 2018.

On March 22, 2018, Altice US Finance I Corporation, an indirect wholly-owned subsidiary of the Company, entered into a Fourth Amendment to Cequel Credit Agreement (Extension Amendment), by and among the borrower, the Revolving Consent Lenders (as defined in the Fourth Amendment) and JPMorgan Chase Bank, N.A., as administrative agent for the lenders (the “Fourth Amendment”).  The Fourth Amendment amends and supplements the Borrower’s credit agreement, dated as of June 12, 2015, as amended by the first amendment (refinancing amendment), dated as of October 25, 2016, the second amendment (extension amendment), dated as of December 9, 2016, and the third amendment (incremental loan assumption agreement and refinancing amendment), dated as of March 15, 2017, (as so amended and as may be further amended, restated, modified or supplemented from time to time and as further amended by the Fourth Amendment among, inter alios, the borrower, the lenders party thereto and the administrative agent.

The Fourth Amendment extends the maturity date of the revolving loans and/or commitments of the Revolving Consent Lenders to April 5, 2023. The Fourth Amendment and the extended maturity date will not apply to the revolving loans and/or commitments of revolving lenders under the Cequel Credit Agreement that are not Revolving Consent Lenders.

As of March 31, 2018, the Company was in compliance with all of its financial covenants under the CSC Holdings Credit Facilities Agreement and the Cequel Credit Facilities Agreement.

Senior Guaranteed Notes, Senior Secured Notes and Senior Notes and Debentures

The following table summarizes the Company's senior guaranteed notes, senior secured notes and senior notes and debentures:

							March 31, 2018				December 31, 2017
Date Issued	Maturity Date	Interest Rate					Principal Amount		Carrying Amount (a)		Principal Amount		Carrying Amount (a)
CSC Holdings Senior Notes:
February 6, 1998	February 15, 2018	7.875	%	(b)	(f)	(o)	$	—	$	—	$	300,000	$	301,184
July 21, 1998	July 15, 2018	7.625	%	(b)	(f)		500,000		504,213		500,000		507,744
February 12, 2009	February 15, 2019	8.625	%	(c)	(f)		526,000		537,930		526,000		541,165
November 15, 2011	November 15, 2021	6.750	%	(c)	(f)		1,000,000		962,332		1,000,000		960,146
May 23, 2014	June 1, 2024	5.250	%	(c)	(f)		750,000		663,291		750,000		660,601
October 9, 2015	January 15, 2023	10.125	%	(e)			1,800,000		1,778,745		1,800,000		1,777,914
October 9, 2015	October 15, 2025	10.875	%	(e)	(l)		1,684,221		1,661,516		1,684,221		1,661,135
CSC Holdings Senior Guaranteed Notes:
October 9, 2015	October 15, 2025	6.625	%	(e)			1,000,000		987,037		1,000,000		986,717
September 23, 2016	April 15, 2027	5.500	%	(g)			1,310,000		1,304,581		1,310,000		1,304,468
January 29, 2018	February 1, 2028	5.375	%	(n)			1,000,000		991,665		—		—
Cablevision Senior Notes (k):
April 15, 2010	April 15, 2018	7.750	%	(c)	(f)	(o)	—		—		750,000		754,035
April 15, 2010	April 15, 2020	8.000	%	(c)	(f)		500,000		492,795		500,000		492,009
September 27, 2012	September 15, 2022	5.875	%	(c)	(f)		649,024		575,348		649,024		572,071
Cequel and Cequel Capital Senior Notes (l):
Oct. 25, 2012 Dec. 28, 2012	September 15, 2020	6.375	%	(d)	(m)		1,050,000		1,029,364		1,050,000		1,027,493
May 16, 2013 Sept. 9, 2014	December 15, 2021	5.125	%	(d)			1,250,000		1,144,929		1,250,000		1,138,870
June 12, 2015	July 15, 2025	7.750	%	(i)			620,000		604,755		620,000		604,374
Altice US Finance I Corporation Senior Secured Notes (l):
June 12, 2015	July 15, 2023	5.375	%	(h)			1,100,000		1,083,159		1,100,000		1,082,482
April 26, 2016	May 15, 2026	5.500	%	(j)			1,500,000		1,488,306		1,500,000		1,488,024
							$	16,239,245	15,809,966		$	16,289,245	15,860,432
Less: current portion									1,042,143				507,744
Long-term debt									$	14,767,823			$	15,352,688

(a) The carrying amount is net of the unamortized deferred financing costs and/or discounts/premiums.

(b) The debentures are not redeemable by CSC Holdings prior to maturity.

(c) Notes are redeemable at any time at a specified "make-whole" price plus accrued and unpaid interest to the redemption date.

(d) The Company may redeem some or more of all the notes at the redemption price set forth in the relevant indenture, plus accrued and unpaid interest.

(e) The Company may redeem some or all of the 2023 Notes at any time on or after January 15, 2019, and some or all of the 2025 Notes and 2025 Guaranteed Notes at any time on or after October 15, 2020, at the redemption prices set forth in the relevant indenture, plus accrued and unpaid interest, if any.  The Company may also redeem up to 40% of each series of the Cablevision Acquisition Notes using the proceeds of certain equity offerings before October 15, 2018, at a redemption price equal to 110.125% for the 2023 Notes, 110.875% for the 2025 Notes and 106.625% for the 2025 Guaranteed Notes, in each case plus accrued and unpaid interest. In addition, at any time prior to January 15, 2019, CSC Holdings may redeem some or all of the 2023 Notes, and at any time prior to October 15, 2020, the Company may redeem some or all of the 2025 Notes and the 2025 Guaranteed Notes, at a price equal to 100% of the principal amount thereof, plus a “make whole” premium specified in the relevant indenture plus accrued and unpaid interest.

(f) The carrying value of the notes was adjusted to reflect their fair value on the Cablevision Acquisition Date (aggregate reduction of $52,788).

(g) The 2027 Guaranteed Notes are redeemable at any time on or after April 15, 2022 at the redemption prices set forth in the indenture, plus accrued and unpaid interest, if any.  In addition, up to 40% may be redeemed for each series of the 2027 Guaranteed Notes using the proceeds of certain equity offerings before October 15, 2019, at a redemption price equal to 105.500%, plus accrued and unpaid interest.

(h) Some or all of these notes may be redeemed at any time on or after July 15, 2018, plus accrued and unpaid interest, if any. Up to 40% of the notes may be redeemed using the proceeds of certain equity offerings before July 15, 2018, at a redemption price equal to 105.375%.

(i) Some or all of these notes may be redeemed at any time on or after July 15, 2020, plus accrued and unpaid interest, if any. Up to 40% of the notes may be redeemed using the proceeds of certain equity offerings before July 15, 2018, at a redemption price equal to 107.750%.

(j) Some or all of these notes may be redeemed at any time on or after May 15, 2021, plus accrued and unpaid interest, if any. Up to 40% of the notes may be redeemed using the proceeds of certain equity offerings before May 15, 2019, at a redemption price equal to 105.500%.

(k) The issuers of these notes have no ability to service interest or principal on the notes, other than through any dividends or distributions received from CSC Holdings. CSC Holdings is restricted, in certain circumstances, from paying dividends or distributions to the issuers by the terms of the CVC Credit Facilities Agreement.

(l) The issuers of these notes have no ability to service interest or principal on the notes, other than through any contributions/distributions from Cequel Communications, LLC (an indirect subsidiary of Cequel and the parent of Altice US Finance I). Cequel Communications, LLC is restricted in certain circumstances, from paying dividends or distributions to the issuers by the terms of the Cequel Credit Facilities Agreement.

(m) These notes were repaid in April 2018 with the proceeds from the issuance of new senior notes (see Note 17).

(n) The 2028 Guaranteed Notes are redeemable at any time on or after February 1, 2023 at the redemption prices set forth in the indenture, plus accrued and unpaid interest, if any.  In addition, up to 40% of the original aggregate principal amount of the notes may be redeemed using the proceeds of certain equity offerings before February 1, 2021, at a redemption price equal to 105.375%, plus accrued and unpaid interest.

(o) These notes were repaid in February 2018 with the proceeds from the 2028 Guaranteed Notes (defined below) and with the proceeds from the Incremental Term Loan.

In January 2018, CSC Holdings issued $1,000,000 aggregate principal amount of 5.375% senior guaranteed notes due February 1, 2028 (the "2028 Guaranteed Notes"). The 2028 Guaranteed Notes are senior unsecured obligations and rank pari passu in right of payment with all of the existing and future senior indebtedness, including the existing senior notes and the CVC Credit Facilities and rank senior in right of payment to all of existing and future subordinated indebtedness.

The proceeds from the 2028 Guaranteed Notes, together with proceeds from the Incremental Term Loan (discussed above), borrowings under the CVC revolving credit facility and cash on hand, were used in February 2018 to repay $300,000 principal amount of CSC Holdings' senior notes due in February 2018 and $750,000 principal amount of Cablevision senior notes due in April 2018 and will be used to fund a dividend of $1,500,000 to the Company's stockholders immediately prior to and in connection with the Distribution discussed in Note 1.

The indentures under which the senior notes and debentures were issued contain various covenants.  The Company was in compliance with all of its financial covenants under these indentures as of March 31, 2018.

Notes Payable to Affiliates and Related Parties

On June 21, 2016, in connection with the Cablevision Acquisition, the Company issued notes payable to affiliates and related parties aggregating $1,750,000, of which $875,000 bore interest at 10.75% and matured on December 20, 2023 and $875,000 bore interest at 11% and matured on December 20, 2024.

In connection with the Company's IPO in June 2017, the Company converted the notes payable to affiliates and related parties (together with accrued and unpaid interest of $529 and applicable premium of $513,723) into shares of the Company’s common stock at the IPO price. The premium was recorded as a loss on extinguishment of debt on the Company's statement of operations in the second quarter of 2017. In connection with the conversion of the notes, the Company recorded a credit to paid in capital of $2,264,252 in the second quarter of 2017.

For the three months ended March 31, 2017, the Company recognized $47,588 of interest expense related to these notes prior to their conversion.

Summary of Debt Maturities

The future maturities of debt payable by the Company under its various debt obligations outstanding as of March 31, 2018, including notes payable, collateralized indebtedness (see Note 10), and capital leases, are as follows:

Years Ending December 31,	Cablevision		Cequel		Total
2018	$	581,298	$	14,193	$	595,491
2019	579,587		32,563		612,150
2020	547,517		1,062,715		1,610,232
2021	2,506,407		1,262,725		3,769,132
2022	695,806		12,730		708,536
Thereafter	11,812,663		4,416,240		16,228,903

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DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS

3 Months Ended

Mar. 31, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS

Prepaid Forward Contracts

The Company has entered into various transactions to limit the exposure against equity price risk on its shares of Comcast Corporation ("Comcast") common stock.  The Company has monetized all of its stock holdings in Comcast through the execution of prepaid forward contracts, collateralized by an equivalent amount of the respective underlying stock.  At maturity, the contracts provide for the option to deliver cash or shares of Comcast stock with a value determined by reference to the applicable stock price at maturity.  These contracts, at maturity, are expected to offset declines in the fair value of these securities below the hedge price per share while allowing the Company to retain upside appreciation from the hedge price per share to the relevant cap price.  

The Company received cash proceeds upon execution of the prepaid forward contracts discussed above which has been reflected as collateralized indebtedness in the accompanying condensed consolidated balance sheets.  In addition, the Company separately accounts for the equity derivative component of the prepaid forward contracts.  These equity derivatives have not been designated as hedges for accounting purposes.  Therefore, the net fair values of the equity derivatives have been reflected in the accompanying condensed consolidated balance sheets as an asset or liability and the net increases or decreases in the fair value of the equity derivative component of the prepaid forward contracts are included in gain (loss) on derivative contracts in the accompanying condensed consolidated statements of operations.

All of the Company's monetization transactions are obligations of its wholly-owned subsidiaries that are not part of the Restricted Group; however, CSC Holdings has provided guarantees of the subsidiaries' ongoing contract payment expense obligations and potential payments that could be due as a result of an early termination event (as defined in the agreements).  If any one of these contracts were terminated prior to its scheduled maturity date, the Company would be obligated to repay the fair value of the collateralized indebtedness less the sum of the fair values of the underlying stock and equity collar, calculated at the termination date.  As of March 31, 2018, the Company did not have an early termination shortfall relating to any of these contracts.

The Company monitors the financial institutions that are counterparties to its equity derivative contracts.  All of the counterparties to such transactions carry investment grade credit ratings as of March 31, 2018.

Interest Rate Swap Contracts

In June 2016, the Company entered into two fixed to floating interest rate swap contracts. One fixed to floating interest rate swap is converting $750,000 from a fixed rate of 1.6655% to six-month LIBO rate and a second tranche of $750,000 from a fixed rate of 1.68% to six-month LIBO rate. The objective of these swaps is to cover the exposure of the 2026 Senior Secured Notes issued by Cequel to changes in the market interest rate. These swap contracts were not designated as hedges for accounting purposes. Accordingly, the changes in the fair value of these interest rate swap contracts are recorded through the statements of operations.

The Company does not hold or issue derivative instruments for trading or speculative purposes.

The following represents the location of the assets and liabilities associated with the Company's derivative instruments within the condensed consolidated balance sheets:

		Asset Derivatives				Liability Derivatives
Derivatives Not Designated as Hedging Instruments	Balance Sheet Location	Fair Value at March 31, 2018		Fair Value at December 31, 2017		Fair Value at March 31, 2018			Fair Value at December 31, 2017
Prepaid forward contracts	Derivative contracts, current	$	9,211	$	52,545	$	(9,211	)	$	(52,545	)
Prepaid forward contracts	Derivative contracts, long-term	63,343		—		(4,495		)	(109,504		)
Interest rate swap contracts	Liabilities under derivative contracts, long-term	—		—		(109,824		)	(77,902		)
		$	72,554	$	52,545	$	(123,530	)	$	(239,951	)

Gain (loss) related to the Company's derivative contracts related to the Comcast common stock for the three months ended March 31, 2018 and 2017 of $168,352 and $(71,044), respectively, are reflected in gain (loss) on derivative contracts, net in the Company's condensed consolidated statement of operations.

For the three months ended March 31, 2018 and 2017, the Company recorded a gain (loss) on investments of $(252,576) and $131,658, respectively, primarily representing the net increase (decrease) in the fair values of the investment securities pledged as collateral. 

For the three months ended March 31, 2018 and 2017, the Company recorded a gain (loss) on interest rate swap contracts of $(31,922) and $2,342, respectively.

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FAIR VALUE MEASUREMENT

3 Months Ended

Mar. 31, 2018

Fair Value Disclosures [Abstract]

FAIR VALUE MEASUREMENT

FAIR VALUE MEASUREMENT

The fair value hierarchy is based on inputs to valuation techniques that are used to measure fair value that are either observable or unobservable.  Observable inputs reflect assumptions market participants would use in pricing an asset or liability based on market data obtained from independent sources while unobservable inputs reflect a reporting entity's pricing based upon their own market assumptions.  The fair value hierarchy consists of the following three levels:

• Level I - Quoted prices for identical instruments in active markets.

• Level II - Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations whose inputs are observable or whose significant value drivers are observable.

• Level III - Instruments whose significant value drivers are unobservable.

The following table presents for each of these hierarchy levels, the Company's financial assets and financial liabilities that are measured at fair value on a recurring basis:

	Fair Value Hierarchy	March 31, 2018		December 31, 2017
Assets:
Money market funds	Level I	$	1,121,432	$	5,949
Investment securities pledged as collateral	Level I	1,467,781		1,720,357
Prepaid forward contracts	Level II	72,554		52,545
Liabilities:
Prepaid forward contracts	Level II	13,706		162,049
Interest rate swap contracts	Level II	109,824		77,902
Contingent consideration related to 2017 acquisitions	Level III	3,233		32,233

The Company's cash equivalents, investment securities and investment securities pledged as collateral are classified within Level I of the fair value hierarchy because they are valued using quoted market prices.

The Company's derivative contracts and liabilities under derivative contracts on the Company's balance sheets are valued using market-based inputs to valuation models.  These valuation models require a variety of inputs, including contractual terms, market prices, yield curves, and measures of volatility.  When appropriate, valuations are adjusted for various factors such as liquidity, bid/offer spreads and credit risk considerations.  Such adjustments are generally based on available market evidence.  Since model inputs can generally be verified and do not involve significant management judgment, the Company has concluded that these instruments should be classified within Level II of the fair value hierarchy.

The fair value of the contingent consideration as of March 31, 2018 related to acquisitions in the first quarter and fourth quarters of 2017 of approximately $1,000 and $2,233, respectively. The estimated amount recorded as of March 31, 2018 is the remaining unpaid contractual amount for the first quarter 2017 acquisition and approximately 51% of the contractual amount for the fourth quarter 2017 acquisition. The fair value of the consideration was estimated based on a probability assessment of attaining the targets as of March 31, 2018.

Fair Value of Financial Instruments

The following methods and assumptions were used to estimate fair value of each class of financial instruments for which it is practicable to estimate:

Credit Facility Debt, Collateralized Indebtedness, Senior Notes and Debentures, Senior Secured Notes, Senior Guaranteed Notes, and Notes Payable

The fair values of each of the Company's debt instruments are based on quoted market prices for the same or similar issues or on the current rates offered to the Company for instruments of the same remaining maturities. The fair value of notes payable is based primarily on the present value of the remaining payments discounted at the borrowing cost.

The carrying values, estimated fair values, and classification under the fair value hierarchy of the Company's financial instruments, excluding those that are carried at fair value in the accompanying condensed consolidated balance sheets, are summarized as follows:

		March 31, 2018				December 31, 2017
	Fair Value Hierarchy	Carrying Amount (a)		Estimated Fair Value		Carrying Amount (a)		Estimated Fair Value
CSC Holdings debt instruments:
Credit facility debt	Level II	$	4,442,684	$	4,477,500	$	3,393,306	$	3,435,000
Collateralized indebtedness	Level II	1,351,271		1,298,060		1,349,474		1,305,932
Senior guaranteed notes	Level II	3,283,283		3,231,825		2,291,185		2,420,000
Senior notes and debentures	Level II	6,108,028		6,797,434		6,409,889		7,221,846
Notes payable	Level II	78,938		76,340		56,956		55,289
Cablevision senior notes:
Senior notes and debentures	Level II	1,068,142		1,172,906		1,818,115		1,931,239
Cequel debt instruments:
Cequel credit facility	Level II	1,247,318		1,255,513		1,250,217		1,258,675
Senior secured notes	Level II	2,571,465		2,580,000		2,570,506		2,658,930
Senior notes	Level II	2,779,048		2,987,700		2,770,737		2,983,615
Notes payable	Level II	24,149		24,149		8,946		8,946
		$	22,954,326	$	23,901,427	$	21,919,331	$	23,279,472

(a) Amounts are net of unamortized deferred financing costs and discounts.

The fair value estimates related to the Company's debt instruments presented above are made at a specific point in time, based on relevant market information and information about the financial instrument.  These estimates are subjective in nature and involve uncertainties and matters of significant judgments and therefore cannot be determined with precision.  Changes in assumptions could significantly affect the estimates.

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INCOME TAXES

3 Months Ended

Mar. 31, 2018

Income Tax Disclosure [Abstract]

INCOME TAXES

INCOME TAXES

In general, the Company is required to use an estimated annual effective tax rate to measure the income tax expense or benefit recognized in an interim period. The estimated annual effective tax rate is revised on a quarterly basis and therefore may be different from the rate used in a prior interim period. In addition, certain items included in income tax expense as well as the tax impact of certain items included in pretax income from continuing operations must be treated as discrete items. The income tax expense or benefit associated with these discrete items is fully recognized in the interim period in which the items occur.

The Company recorded income tax benefit of $60,703 for the three months ended March 31, 2018, reflecting an effective tax rate of 32%, which has declined compared to previous years primarily as a result of the enactment of the Tax Cuts & Jobs Act in December 2017 which lowered the corporate federal income tax rate from 35% to 21%.

The Company recorded income tax benefit of $45,908 for the three months ended March 31, 2017, reflecting an effective tax rate of 38%. Nondeductible share-based compensation expense resulted in tax expense of $3,140. Absent this item, the effective tax rate for the three months ended March 31, 2017 would have been 40%.

As of March 31, 2018, the Company's federal net operating losses (“NOLs”) were approximately $2,486,000. The utilization of certain pre-merger NOLs of Cablevision and Cequel are limited pursuant to Internal Revenue Code Section 382. The Company does not expect such limitations to impact the ability to utilize the NOLs prior to their expiration.

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SHARE BASED COMPENSATION

3 Months Ended

Mar. 31, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

SHARE BASED COMPENSATION

SHARE BASED COMPENSATION

Certain employees of the Company and its affiliates received awards of units in a carry unit plan of Neptune Management LP, an entity which has an ownership interest in the Company. The awards generally vest as follows: 50% on the second anniversary of June 21, 2016 for Cablevision employees or December 21, 2015 for Cequel employees ("Base Date"), 25% on the third anniversary of the Base Date, and 25% on the fourth anniversary of the Base Date.  Neptune Holding US GP LLC, the general partner of Neptune Management LP, has the right to repurchase (or to assign to an affiliate, including the Company, the right to repurchase) vested awards held by employees for sixty days following their termination.  For performance-based awards under the plan, vesting occurs upon achievement or satisfaction of a specified performance condition. The Company considered the probability of achieving the established performance targets in determining the share-based compensation with respect to these awards at the end of each reporting period.

Beginning on the fourth anniversary of the Base Date, the holders of carry units have an annual opportunity (a sixty day period determined by the administrator of the plan) to sell their units back to Neptune Holding US GP LLC (or affiliate, including the Company, designated by Neptune Holding US GP LLC). Accordingly, the carry units are presented as temporary equity on the consolidated balance sheets at fair value. Adjustments to fair value at each reporting period are recorded in paid-in capital.

The right of Neptune Holding US GP LLC to assign to an affiliate, including the Company, the right to repurchase an employee’s vested units during the sixty-day period following termination, or to satisfy its obligation to repurchase an employee’s vested units during annual60day periods following the fourth anniversary of the Base Date, may be exercised by Neptune Holding US GP LLC in its discretion at the time a repurchase right or obligation arises. The carry unit plan requires the purchase price payable to the employee or former employee, as the case may be, to be paid in cash, a promissory note (with a term of not more than3 yearsand bearing interest at the long-term applicable federal rate under Section 1274(d) of the Internal Revenue Code) or combination thereof, in each case as determined by Neptune Holding US GP LLC in its discretion at the time of the repurchase. Neptune Holding US GP LLC expects that vested units will be redeemed for shares of the Company's Class A common stock upon vesting.

The following table summarizes activity relating to carry units:

	Number of Time Vesting Awards		Number of Performance Based Vesting Awards	Weighted Average Grant Date Fair Value
Balance, December 31, 2017	168,550,001		10,000,000	$	0.71
Forfeited	(3,500,001	)	—	0.86
Balance, March 31, 2018	165,050,000		10,000,000	0.71

The weighted average fair value per unit was $2.50 and $2.10 as of December 31, 2017 and March 31, 2018, respectively. For the three months ended March 31, 2018 and 2017, the Company recognized an expense of $17,501 and $7,848 related to the push down of share-based compensation related to the carry unit plan of which approximately $16,872 and $5,786 related to units granted to employees of the Company and $629 and $2,062 related to employees of Altice N.V. and affiliated companies allocated to the Company.

Stock Option Plan

The following table summarizes activity related to employee stock options for the three months ended March 31, 2018:

	Shares Under Option				Weighted Average Exercise Price Per Share		Weighted Average Remaining Contractual Term (in years)
	Time Vesting		Performance Based Vesting					Aggregate Intrinsic Value (a)
Balance at December 31, 2017	5,110,747		—		$	19.48	9.97	$	8,944
Granted	298,394		39,050		21.22
Forfeited	(103,766	)	(22,314	)	21.81
Balance at March 31, 2018	5,305,375		16,736		$	19.54	9.92	(5,615		)
Options exercisable at March 31, 2018	—		—		—		—	—

(a) The aggregate intrinsic value is calculated as the difference between the exercise price and the closing price of the Company's Class A common stock at the respective date.

The Company recognized share based compensation expense related to employee stock options for the three months ended March 31, 2018 of $4,122.

The following aggregate assumptions were used to calculate the fair values of stock option awards granted during the three months ended March 31, 2018:

Risk-free interest rate	2.64%
Expected life (in years)	6.49
Dividend yield	—%
Volatility	33.86%
Grant date fair value	$7.49

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AFFILIATE AND RELATED PARTY TRANSACTIONS

3 Months Ended

Mar. 31, 2018

Related Party Transactions [Abstract]

AFFILIATE AND RELATED PARTY TRANSACTIONS

AFFILIATE AND RELATED PARTY TRANSACTIONS

Equity Method Investments

In July 2016, the Company completed the sale of a 75% interest in Newsday LLC ("Newsday") to an employee of the Company. The Company retained the remaining 25% ownership interest. Effective July 7, 2016, the operating results of Newsday are no longer consolidated with those of the Company and the Company's 25% interest in the operating results of Newsday is recorded using the equity method.

At March 31, 2018, the Company's 25% investment in Newsday and its 25% interest in i24NEWS, Altice N.V.'s 24/7 international news and current affairs channel aggregated $12,891 and $800, respectively and is included in investments in affiliates on our condensed consolidated balance sheet. The operating results of i24NEWS is also recorded using the equity method. For the three months ended March 31, 2018 and 2017, the Company recorded equity in net loss of Newsday of $9,312 and $1,510, respectively, and equity in net loss of i24NEWS of $1,130 and $1,247, respectively. In April 2018, Altice NV transferred its ownership of i24 US and i24 Europe to the Company for minimal consideration.

Affiliate and Related Party Transactions

As the transactions discussed below were conducted between subsidiaries of Altice N.V. under common control and equity method investees, amounts charged for certain services may not have represented amounts that might have been received or incurred if the transactions were based upon arm's length negotiations.

The following table summarizes the revenue and charges related to services provided to or received from subsidiaries of Altice N.V. and Newsday:

	Three Months Ended March 31,
	2018			2017
Revenue	$	125		$	141
Operating expenses:
Programming and other direct costs	(1,154		)	(735		)
Other operating expenses, net	(7,994		)	(7,298		)
Operating expenses, net	(9,148		)	(8,033		)
Interest expense (a)	—			(47,588		)
Net charges	$	(9,023	)	$	(55,480	)
Capital Expenditures	$	1,626		$	892

(a) In connection with the Company's IPO in June 2017, the Company converted the notes payable to affiliates and related parties into shares of the Company’s common stock at the IPO price.

Revenue

The Company recognized revenue primarily in connection with the sale of advertising to Newsday.

Programming and other direct costs

Programming and other direct costs include costs incurred by the Company for the transport and termination of voice and data services provided by a subsidiary of Altice N.V.

Other operating expenses

A subsidiary of Altice N.V. provides certain executive services, as well as consulting, advisory and other services, including, prior to the IPO, CEO, CFO and COO services, to the Company. Compensation under the terms of the agreement is an annual fee of $30,000 to be paid by the Company. Fees associated with this agreement recorded by the Company amounted to approximately $7,500, for the three months ended March 31, 2018 and 2017. As of June 20, 2017, the CEO, CFO and COO became employees of the Company and the agreement was assigned to Altice N.V. by a subsidiary of Altice N.V. This agreement will be terminated upon the completion of the Distribution discussed in Note 1.

Other operating expenses also include charges for services provided by other subsidiaries of Altice N.V. aggregating $494 and $(202), respectively, net of a credit of $482 for transition services provided to Newsday for the three months ended March 31, 2017.

Capital Expenditures

Capital expenditures include $1,626 and $892, respectively, for equipment purchases and software development services provided by subsidiaries of Altice NV.

Aggregate amounts that were due from and due to related parties are summarized below:

	March 31, 2018		December 31, 2017
Due from:
Altice US Finance S.A. (a)	$	12,951	$	12,951
Newsday (b)	2,558		2,713
Altice Management Americas (b)	1,271		33
i24 News (b)	4,335		4,036
Other Altice N.V. subsidiaries (b)	31		31
	$	21,146	$	19,764
Due to:
Altice Management International (c)	7,500		—
Newsday (b)	33		33
Altice Labs S.A. (c)	1,051		7,354
Other Altice N.V. subsidiaries (c)	2,494		3,611
	$	11,078	$	10,998

(a) Represents interest on senior notes paid by the Company on behalf of the affiliate.

(b) Represents amounts paid by the Company on behalf of the respective related party and for Newsday, the net amounts due from the related party also include charges for certain transition services provided.

(c) Represents amounts due to affiliates for services provided to the Company.

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COMMITMENTS AND CONTINGENCIES

3 Months Ended

Mar. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES

Legal Matters

Following expiration of the affiliation agreements for carriage of certain Fox broadcast stations and cable networks on October 16, 2010, News Corporation terminated delivery of the programming feeds to Cablevision, and as a result, those stations and networks were unavailable on Cablevision's cable television systems. On October 30, 2010, Cablevision and Fox reached an agreement on new affiliation agreements for these stations and networks, and carriage was restored. Several purported class action lawsuits alleging breach of contract, unjust enrichment, and consumer fraud and seeking unspecified compensatory damages, punitive damages and attorneys' fees were subsequently filed on behalf of Cablevision's customers seeking recovery for the lack of Fox programming. Those lawsuits were consolidated in an action before the U. S. District Court for the Eastern District of New York, and a consolidated complaint was filed in that court on February 22, 2011. On March 28, 2012, in ruling on Cablevision's motion to dismiss, the Court dismissed all of plaintiffs’ claims, except for breach of contract.  On March 30, 2014, the Court granted plaintiffs’ motion for class certification. The parties have entered into a settlement agreement, which is subject to Court approval. As of December 31, 2017, the Company had an estimated liability associated with a potential settlement totaling $6,000. The amount ultimately paid in connection with the proposed settlement could exceed the amount recorded.

In October 2015, the New York Attorney General began an investigation into whether the major Internet Service Providers in New York State deliver advertised Internet speeds. The Company is cooperating with this investigation and is currently in discussions with the New York Attorney General about resolving the investigation as to the Company, which resolution may involve operational and or financial components. While the Company is unable to predict the outcome of the investigation or these discussions, at this time it does not expect that the outcome will have a material adverse effect on its operations, financial conditions or cash flows.

The Company receives notices from third parties and, in some cases, is named as a defendant in certain lawsuits claiming infringement of various patents relating to various aspects of the Company's businesses.  In certain of these cases other industry participants are also defendants.  In certain of these cases the Company expects that any potential liability would be the responsibility of the Company's equipment vendors pursuant to applicable contractual indemnification provisions.  The Company believes that the claims are without merit and intends to defend the actions vigorously, but is unable to predict the outcome of these matters or reasonably estimate a range of possible loss.

In addition to the matters discussed above, the Company is party to various lawsuits, some involving claims for substantial damages.  Although the outcome of these other matters cannot be predicted and the impact of the final resolution of these other matters on the Company's results of operations in a particular subsequent reporting period is not known, management does not believe that the resolution of these other lawsuits will have a material adverse effect on the financial position of the Company or the ability of the Company to meet its financial obligations as they become due.

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SEGMENT INFORMATION

3 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

SEGMENT INFORMATION

SEGMENT INFORMATION

The Company classifies its operations into two reportable segments: Cablevision and Cequel. The Company's reportable segments are strategic business units that are managed separately.  The Company evaluates segment performance based on several factors, of which the primary financial measure is business segment Adjusted EBITDA, a non-GAAP measure.  The Company defines Adjusted EBITDA as net income (loss) excluding income taxes, income (loss) from discontinued operations, non-operating other income or expenses, loss on extinguishment of debt and write-off of deferred financing costs, gain (loss) on interest rate swap contracts, gain (loss) on derivative contracts, gain (loss) on investments, interest expense (including cash interest expense), interest income, depreciation and amortization (including impairments), share-based compensation expense or benefit, restructuring expense or credits and transaction expenses.  The Company has presented the components that reconcile Adjusted EBITDA to operating income, an accepted GAAP measure:

	Three Months Ended March 31, 2018						Three Months Ended March 31, 2017
	Cablevision		Cequel		Total		Cablevision		Cequel		Total
Operating income	$	170,693	$	142,345	$	313,038	$	122,044	$	128,066	$	250,110
Share-based compensation	16,172		5,451		21,623		5,082		2,766		7,848
Restructuring and other expense	3,083		504		3,587		58,647		18,282		76,929
Depreciation and amortization (including impairments)	485,364		157,341		642,705		443,176		165,548		608,724
Adjusted EBITDA	$	675,312	$	305,641	$	980,953	$	628,949	$	314,662	$	943,611

A reconciliation of reportable segment amounts to the Company's condensed consolidated balances are as follows:

	Three Months Ended March 31,
	2018			2017
Operating income for reportable segments	$	313,038		$	250,110
Items excluded from operating income:
Interest expense	(377,258		)	(433,294		)
Interest income	3,103			232
Gain (loss) on investments and sale of affiliate interests, net	(248,602		)	131,658
Gain (loss) on derivative contracts, net	168,352			(71,044		)
Gain (loss) on interest rate swap contracts	(31,922		)	2,342
Loss on extinguishment of debt and write-off of deferred financing costs	(4,705		)	—
Other expense, net	(11,658		)	(2,100		)
Loss before income taxes	$	(189,652	)	$	(122,096	)

The following tables present the composition of revenue by segment:

	Three Months Ended March 31, 2018									Three Months Ended March 31, 2017
	Cablevision		Cequel		Eliminations (a)			Total		Cablevision		Cequel		Total
Residential:
Pay TV	$	763,720	$	269,988	$	—		$	1,033,708	$	802,194	$	281,684	$	1,083,878
Broadband	440,351		261,270		—			701,621		396,333		229,585		625,918
Telephony	135,585		30,453		—			166,038		146,557		34,404		180,961
Business services and wholesale	234,172		98,918		—			333,090		228,544		90,876		319,420
Advertising	74,643		17,068		(4,129		)	87,582		65,132		18,229		83,361
Other	2,823		4,852		—			7,675		3,227		5,494		8,721
Total Revenue	$	1,651,294	$	682,549	$	(4,129	)	$	2,329,714	$	1,641,987	$	660,272	$	2,302,259

(a)     Reflects revenue recognized by Cablevision from the sale of services to Cequel.

Capital expenditures (cash basis) by reportable segment are presented below:

	Three Months Ended March 31,
	2018		2017
Cablevision	$	166,801	$	184,399
Cequel	90,814		73,028
	$	257,615	$	257,427

All revenues and assets of the Company's reportable segments are attributed to or located in the United States.

Total assets by segment are not provided as such amounts are not regularly reviewed by the chief operating decision maker for purposes of decision making regarding resource allocations.

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SUBSEQUENT EVENT

3 Months Ended

Mar. 31, 2018

Subsequent Events [Abstract]

SUBSEQUENT EVENT

SUBSEQUENT EVENT

In April 2018, Cequel Communications Holdings I, LLC and Cequel Capital Corporation each an indirect, wholly owned subsidiary of the Company, issued $1,050,000, aggregate principal amount of 7.5% senior notes due April 1, 2028. The proceeds of these notes were used in April 2018 to redeem the $1,050,000 aggregate principal amount 6.375% senior notes due September 15, 2020.

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)

3 Months Ended

Mar. 31, 2018

Accounting Policies [Abstract]

Recently Adopted Accounting Pronouncements and Recently Issued But Not Yet Adopted Accounting Pronouncements

Recently Adopted Accounting Pronouncements

In February 2018, the FASB issued ASU No. 2018-02, Income Statement—Reporting Comprehensive Income (Topic 220) Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. The primary provision of ASU No. 2018-02 allows for the reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act. ASU No. 2018-02 also requires certain disclosures about stranded tax effects. ASU No. 2018‑02 is effective for the Company on January 1, 2019, with early adoption permitted and will be applied either in the period of adoption or retrospectively to each period (or periods) in which the effect of the change in the U.S. federal corporate income tax rate in the Tax Cuts and Jobs Act is recognized. The Company elected to adopt ASU No. 2018-02 during the first quarter of 2018. The adoption resulted in the reclassification of stranded tax amounts of $2,163 associated with net unrecognized losses from the Company's pension plans from accumulated other comprehensive loss to retained earnings.

In May 2017, the FASB issued ASU No. 2017‑09, Compensation- Stock Compensation (Topic 718). ASU No. 2017‑09 provides clarity and guidance on which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting in Topic 718. ASU No. 2017‑09 was adopted by the Company on January 1, 2018 and had no impact to the Company's condensed consolidated financial statements.

In March 2017, the FASB issued ASU No. 2017‑07 Compensation-Retirement Benefits (Topic 715). ASU No. 2017‑07 requires that an employer disaggregate the service cost component from the other components of net benefit cost. It also provides guidance on how to present the service cost component and the other components of net benefit cost in the income statement and what component of net benefit cost is eligible for capitalization. ASU No. 2017‑07 was adopted by the Company on January 1, 2018 and was applied retrospectively. As a result of the adoption, the Company reclassified the non-service cost components of the Company's pension expense for the three months ended March 31, 2017 from other operating expenses to other income (expense), net. The Company elected to apply the practical expedient which allowed it to reclassify amounts disclosed previously in the benefits plan note as the basis for applying retrospective presentation for comparative periods, as the Company determined it was impracticable to disaggregate the cost components for amounts capitalized and amortized in those periods. See Note 3 for information on the impact of the adoption of ASU No. 2017-07.

In January 2017, the FASB issued ASU No. 2017‑01, Business Combinations (Topic 805), Clarifying the Definition of a Business, which amends Topic 805 to interpret the definition of a business by adding guidance to assist in evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The Company adopted the new guidance on January 1, 2018 and had no impact to the Company's condensed consolidated financial statements.

In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments - Overall (Subtopic 825-10), Recognition and Measurement of Financial Assets and Financial Liabilities.  ASU No. 2016-01 modifies how entities measure certain equity investments and also modifies the recognition of changes in the fair value of financial liabilities measured under the fair value option. Entities will be required to measure equity investments that do not result in consolidation and are not accounted for under the equity method at fair value and recognize any changes in fair value in net income. For financial liabilities measured using the fair value option, entities will be required to record changes in fair value caused by a change in instrument-specific credit risk (own credit risk) separately in other comprehensive income. ASU No. 2016-01 was adopted by the Company on January 1, 2018 and had no impact to the Company's condensed consolidated financial statements.

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers ("ASC 606"), 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. ASC 606 replaced most existing revenue recognition guidance in GAAP and allowed the use of either the retrospective or cumulative effect transition method.

In December 2016, the FASB issued ASU No. 2016-20, Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers, in order to clarify the Codification and to correct any unintended application of the guidance. The amendments in this update affected the guidance in ASC 606. ASC 606 was adopted by the Company on January 1, 2018 on a full retrospective basis, which required the Company to reflect the impact of the updated guidance for all periods presented. The adoption of ASC 606 did not have a material impact on the Company’s financial position or results of operations. See Note 3 for information on the impact of the adoption of ASC 606.

In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments which clarifies how entities should classify certain cash receipts and cash payments on the statement of cash flows. ASU No. 2016-15 also clarifies how the predominance principle should be applied when cash receipts and cash payments have aspects of more than one class of cash flows. The Company adopted the new guidance on January 1, 2018 and had no impact to the Company's condensed consolidated financial statements.

Recently Issued But Not Yet Adopted Accounting Pronouncements

In January 2017, the FASB issued ASU No. 2017‑04, Intangibles-Goodwill and Other (Topic 350). ASU No. 2017‑04 simplifies the subsequent measurement of goodwill by removing the second step of the two‑step impairment test. The amendment requires an entity to perform its annual, or interim goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity still has the option to perform the qualitative assessment for a reporting unit to determine if the quantitative impairment test is necessary. ASU No. 2017‑04 becomes effective for the Company on January 1, 2020 with early adoption permitted and will be applied prospectively.

In February 2016, the FASB issued ASU No. 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. The Company has not yet completed the evaluation of the effect that ASU No. 2016-02 will have on its consolidated financial statements.

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CHANGE IN ACCOUNTING POLICIES AND ATS ACQUISITION (Tables)

3 Months Ended

Mar. 31, 2018

Accounting Changes and Error Corrections [Abstract]

Schedule of New Accounting Pronouncements

The following table summarizes the impact of adopting ASC 606 and the impact of the ATS Acquisition on the Company's condensed consolidated balance sheet: 

	December 31, 2017
	As Reported		Impact of ASC 606		Impact of ATS Acquisition			As Adjusted
Cash and cash equivalents	$	273,329	$	—	$	56,519		$	329,848
Other current assets	580,231		14,068		(20,548		)	573,751
Property, plant and equipment, net	6,063,829		—		(40,003		)	6,023,826
Goodwill	7,996,760		—		23,101			8,019,861
Other assets, long-term	19,861,076		10,261		(6,541		)	19,864,796
Total assets	$	34,775,225	$	24,329	$	12,528		$	34,812,082
Current liabilities	$	2,492,983	$	6,978	$	20,401		$	2,520,362
Deferred tax liability, long-term	4,775,115		4,685		(10,514		)	4,769,286
Liabilities, long-term	21,779,997		—		6,394			21,786,391
Total liabilities	29,048,095		11,663		16,281			29,076,039
Redeemable equity	231,290		—		—			231,290
Paid-in capital	4,642,128		—		23,101			4,665,229
Retained earnings	854,824		12,666		(26,854		)	840,636
Total stockholders' equity	5,495,840		12,666		(3,753		)	5,504,753
Total liabilities and stockholders' equity	$	34,775,225	$	24,329	$	12,528		$	34,812,082

The ATS Acquisition did not have an impact on the Company's condensed consolidated statement of operations for the three months ended March 31, 2017. The following table summarizes the impact of adopting ASC 606 and ASU No. 2017-07 on the Company's condensed consolidated statement of operations:

	Three Months Ended March 31, 2017
	As Reported			Impact of ASC 606			Impact of ASU No. 2017-07			As Adjusted
Residential:
Pay TV	$	1,071,361		$	12,517		$	—		$	1,083,878
Broadband	611,769			14,149			—			625,918
Telephony	210,873			(29,912		)	—			180,961
Business services and wholesale	319,591			(171		)	—			319,420
Advertising	83,361			—			—			83,361
Other	8,721			—			—			8,721
Total revenue	2,305,676			(3,417		)	—			2,302,259
Programming and other direct costs	758,352			—			—			758,352
Other operating expenses	613,437			(3,417		)	(1,876		)	608,144
Restructuring and other expense	76,929			—			—			76,929
Depreciation and amortization	608,724			—			—			608,724
Operating income	248,234			—			1,876			250,110
Other expense, net	(370,330		)	—			(1,876		)	(372,206		)
Loss before income taxes	(122,096		)	—			—			(122,096		)
Income tax benefit	45,908			—			—			45,908
Net loss	$	(76,188	)	$	—		$	—		$	(76,188	)

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REVENUE AND CONTRACT ASSETS (Tables)

3 Months Ended

Mar. 31, 2018

Revenue from Contract with Customer [Abstract]

Receivables, Contracts Assets and Contract Liabilities Related To Contracts With Customers

The following table provides information about contracts assets and contract liabilities related to contracts with customers:

	March 31, 2018		December 31, 2017, as adjusted
Contract assets (a)	$	23,682	$	24,329
Deferred revenue (b)	129,560		117,679

(a) Contract assets include primarily sales commissions for enterprise customers that are deferred and amortized over the average contract term.

(b) Deferred revenue represents payments received from customers for services that have yet to be provided and installation revenue which is deferred and recognized over the benefit period. The majority of the Company's deferred revenue represents payments for services for up to one month in advance from residential and SMB customers which is realized within the following month as services are performed.

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SUPPLEMENTAL CASH FLOW INFORMATION (Tables)

3 Months Ended

Mar. 31, 2018

Supplemental Cash Flow Elements [Abstract]

Non-Cash Investing and Financing Activities and Other Supplemental Data

The Company's non-cash investing and financing activities and other supplemental data were as follows:

	Three Months Ended March 31,
	2018			2017
Non-Cash Investing and Financing Activities:
Continuing Operations:
Property and equipment accrued but unpaid	$	91,036		$	61,170
Notes payable to vendor	30,237			—
Capital lease obligations	656			—
Supplemental Data:
Cash interest paid	464,763			524,864
Income taxes paid (refunded), net	(1,027		)	1,553

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RESTRUCTURING COSTS AND OTHER EXPENSE (Tables)

3 Months Ended

Mar. 31, 2018

Restructuring and Related Activities [Abstract]

Restructuring Cost Activity

The following table summarizes the activity for the 2016 Restructuring Plan during 2018:
	Severance and Other Employee Related Costs			Facility Realignment and Other Costs			Total
Accrual balance at December 31, 2017	$	113,474		$	9,626		$	123,100
Restructuring charges	1,818			(497		)	1,321
Payments and other	(38,469		)	(4,475		)	(42,944		)
Accrual balance at March 31, 2018	$	76,823		$	4,654		$	81,477

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INTANGIBLE ASSETS (Tables)

3 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Acquired Finite-Lived Intangible Assets by Major Class

The following table summarizes information relating to the Company's acquired amortizable intangible assets: 

	March 31, 2018							December 31, 2017
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Estimated Useful Lives
Customer relationships	$	5,970,884	$	(1,603,142	)	$	4,367,742	$	5,970,884	$	(1,409,021	)	$	4,561,863	8 to 18 years
Trade names	1,067,083		(624,276		)	442,807		1,067,083		(588,574		)	478,509		2 to 5 years
Other amortizable intangibles	37,060		(12,972		)	24,088		37,060		(10,978		)	26,082		1 to 15 years
	$	7,075,027	$	(2,240,390	)	$	4,834,637	$	7,075,027	$	(2,008,573	)	$	5,066,454

Schedule of Indefinite-Lived Intangible Assets

The following table summarizes information relating to the Company's acquired indefinite-lived intangible assets:

	March 31, 2018						December 31, 2017
	Cablevision		Cequel		Total		Cablevision		Cequel		Total
Cable television franchises	$	8,113,575	$	4,906,506	$	13,020,081	$	8,113,575	$	4,906,506	$	13,020,081
Goodwill	5,866,108		2,153,741		8,019,849		5,866,120		2,153,741		8,019,861
Total	$	13,979,683	$	7,060,247	$	21,039,930	$	13,979,695	$	7,060,247	$	21,039,942

Schedule of Goodwill

The carrying amount of goodwill is presented below:

Gross goodwill as of December 31, 2017, as reported	$	7,996,760
ATS goodwill included in Cablevision segment (See Note 3 for further details)	23,101
Gross goodwill as of December 31, 2017, as adjusted	8,019,861
Adjustment to purchase accounting relating to business acquired in fourth quarter of 2017	(12		)
Net goodwill as of March 31, 2018	$	8,019,849

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DEBT (Tables)

3 Months Ended

Mar. 31, 2018

Debt Disclosure [Abstract]

Schedule of Line of Credit Facilities

The following table provides details of the Company's outstanding credit facility debt:

			March 31, 2018				December 31, 2017
	Maturity Date	Interest Rate	Principal Amount		Carrying Amount (a)		Principal Amount		Carrying Amount (a)
CSC Holdings Restricted Group:
Revolving Credit Facility (b)	$20,000 on October 9, 2020, remaining balance on November 30, 2021	—%	$	—	$	—	$	450,000	$	425,488
Term Loan Facility	July 17, 2025	4.04%	2,977,500		2,960,859		2,985,000		2,967,818
Incremental Term Loan Facility	January 25, 2026	4.28%	1,500,000		1,481,825		—		—
Cequel:
Revolving Credit Facility (c)	$65,000 on November 30, 2021, and remaining balance on April 5, 2023	—	—		—		—		—
Term Loan Facility	July 28, 2025	4.13%	1,255,513		1,247,318		1,258,675		1,250,217
			$	5,733,013	5,690,002		$	4,693,675	4,643,523
Less: Current portion					53,900				42,650
Long-term debt					$	5,636,102			$	4,600,873

(a) The carrying amount is net of the unamortized deferred financing costs and/or discounts/premiums.

(b) At March 31, 2018, $115,973 of the revolving credit facility was restricted for certain letters of credit issued on behalf of the Company and $2,184,027 of the facility was undrawn and available, subject to covenant limitations.

(c) At March 31, 2018, $13,500 of the revolving credit facility was restricted for certain letters of credit issued on behalf of the Company and $336,500 of the facility was undrawn and available, subject to covenant limitations.

Schedule of Long-term Debt Instruments

The following table summarizes the Company's senior guaranteed notes, senior secured notes and senior notes and debentures:

							March 31, 2018				December 31, 2017
Date Issued	Maturity Date	Interest Rate					Principal Amount		Carrying Amount (a)		Principal Amount		Carrying Amount (a)
CSC Holdings Senior Notes:
February 6, 1998	February 15, 2018	7.875	%	(b)	(f)	(o)	$	—	$	—	$	300,000	$	301,184
July 21, 1998	July 15, 2018	7.625	%	(b)	(f)		500,000		504,213		500,000		507,744
February 12, 2009	February 15, 2019	8.625	%	(c)	(f)		526,000		537,930		526,000		541,165
November 15, 2011	November 15, 2021	6.750	%	(c)	(f)		1,000,000		962,332		1,000,000		960,146
May 23, 2014	June 1, 2024	5.250	%	(c)	(f)		750,000		663,291		750,000		660,601
October 9, 2015	January 15, 2023	10.125	%	(e)			1,800,000		1,778,745		1,800,000		1,777,914
October 9, 2015	October 15, 2025	10.875	%	(e)	(l)		1,684,221		1,661,516		1,684,221		1,661,135
CSC Holdings Senior Guaranteed Notes:
October 9, 2015	October 15, 2025	6.625	%	(e)			1,000,000		987,037		1,000,000		986,717
September 23, 2016	April 15, 2027	5.500	%	(g)			1,310,000		1,304,581		1,310,000		1,304,468
January 29, 2018	February 1, 2028	5.375	%	(n)			1,000,000		991,665		—		—
Cablevision Senior Notes (k):
April 15, 2010	April 15, 2018	7.750	%	(c)	(f)	(o)	—		—		750,000		754,035
April 15, 2010	April 15, 2020	8.000	%	(c)	(f)		500,000		492,795		500,000		492,009
September 27, 2012	September 15, 2022	5.875	%	(c)	(f)		649,024		575,348		649,024		572,071
Cequel and Cequel Capital Senior Notes (l):
Oct. 25, 2012 Dec. 28, 2012	September 15, 2020	6.375	%	(d)	(m)		1,050,000		1,029,364		1,050,000		1,027,493
May 16, 2013 Sept. 9, 2014	December 15, 2021	5.125	%	(d)			1,250,000		1,144,929		1,250,000		1,138,870
June 12, 2015	July 15, 2025	7.750	%	(i)			620,000		604,755		620,000		604,374
Altice US Finance I Corporation Senior Secured Notes (l):
June 12, 2015	July 15, 2023	5.375	%	(h)			1,100,000		1,083,159		1,100,000		1,082,482
April 26, 2016	May 15, 2026	5.500	%	(j)			1,500,000		1,488,306		1,500,000		1,488,024
							$	16,239,245	15,809,966		$	16,289,245	15,860,432
Less: current portion									1,042,143				507,744
Long-term debt									$	14,767,823			$	15,352,688

(a) The carrying amount is net of the unamortized deferred financing costs and/or discounts/premiums.

(b) The debentures are not redeemable by CSC Holdings prior to maturity.

(c) Notes are redeemable at any time at a specified "make-whole" price plus accrued and unpaid interest to the redemption date.

(d) The Company may redeem some or more of all the notes at the redemption price set forth in the relevant indenture, plus accrued and unpaid interest.

(e) The Company may redeem some or all of the 2023 Notes at any time on or after January 15, 2019, and some or all of the 2025 Notes and 2025 Guaranteed Notes at any time on or after October 15, 2020, at the redemption prices set forth in the relevant indenture, plus accrued and unpaid interest, if any.  The Company may also redeem up to 40% of each series of the Cablevision Acquisition Notes using the proceeds of certain equity offerings before October 15, 2018, at a redemption price equal to 110.125% for the 2023 Notes, 110.875% for the 2025 Notes and 106.625% for the 2025 Guaranteed Notes, in each case plus accrued and unpaid interest. In addition, at any time prior to January 15, 2019, CSC Holdings may redeem some or all of the 2023 Notes, and at any time prior to October 15, 2020, the Company may redeem some or all of the 2025 Notes and the 2025 Guaranteed Notes, at a price equal to 100% of the principal amount thereof, plus a “make whole” premium specified in the relevant indenture plus accrued and unpaid interest.

(f) The carrying value of the notes was adjusted to reflect their fair value on the Cablevision Acquisition Date (aggregate reduction of $52,788).

(g) The 2027 Guaranteed Notes are redeemable at any time on or after April 15, 2022 at the redemption prices set forth in the indenture, plus accrued and unpaid interest, if any.  In addition, up to 40% may be redeemed for each series of the 2027 Guaranteed Notes using the proceeds of certain equity offerings before October 15, 2019, at a redemption price equal to 105.500%, plus accrued and unpaid interest.

(h) Some or all of these notes may be redeemed at any time on or after July 15, 2018, plus accrued and unpaid interest, if any. Up to 40% of the notes may be redeemed using the proceeds of certain equity offerings before July 15, 2018, at a redemption price equal to 105.375%.

(i) Some or all of these notes may be redeemed at any time on or after July 15, 2020, plus accrued and unpaid interest, if any. Up to 40% of the notes may be redeemed using the proceeds of certain equity offerings before July 15, 2018, at a redemption price equal to 107.750%.

(j) Some or all of these notes may be redeemed at any time on or after May 15, 2021, plus accrued and unpaid interest, if any. Up to 40% of the notes may be redeemed using the proceeds of certain equity offerings before May 15, 2019, at a redemption price equal to 105.500%.

(k) The issuers of these notes have no ability to service interest or principal on the notes, other than through any dividends or distributions received from CSC Holdings. CSC Holdings is restricted, in certain circumstances, from paying dividends or distributions to the issuers by the terms of the CVC Credit Facilities Agreement.

(l) The issuers of these notes have no ability to service interest or principal on the notes, other than through any contributions/distributions from Cequel Communications, LLC (an indirect subsidiary of Cequel and the parent of Altice US Finance I). Cequel Communications, LLC is restricted in certain circumstances, from paying dividends or distributions to the issuers by the terms of the Cequel Credit Facilities Agreement.

(m) These notes were repaid in April 2018 with the proceeds from the issuance of new senior notes (see Note 17).

(n) The 2028 Guaranteed Notes are redeemable at any time on or after February 1, 2023 at the redemption prices set forth in the indenture, plus accrued and unpaid interest, if any.  In addition, up to 40% of the original aggregate principal amount of the notes may be redeemed using the proceeds of certain equity offerings before February 1, 2021, at a redemption price equal to 105.375%, plus accrued and unpaid interest.

(o) These notes were repaid in February 2018 with the proceeds from the 2028 Guaranteed Notes (defined below) and with the proceeds from the Incremental Term Loan.

Schedule of Maturities of Long-term Debt

The future maturities of debt payable by the Company under its various debt obligations outstanding as of March 31, 2018, including notes payable, collateralized indebtedness (see Note 10), and capital leases, are as follows:

Years Ending December 31,	Cablevision		Cequel		Total
2018	$	581,298	$	14,193	$	595,491
2019	579,587		32,563		612,150
2020	547,517		1,062,715		1,610,232
2021	2,506,407		1,262,725		3,769,132
2022	695,806		12,730		708,536
Thereafter	11,812,663		4,416,240		16,228,903

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DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS (Tables)

3 Months Ended

Mar. 31, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Location of Assets and Liabilities Associated With Derivative Instruments Within the Condensed Consolidated Balance Sheets

The following represents the location of the assets and liabilities associated with the Company's derivative instruments within the condensed consolidated balance sheets:

		Asset Derivatives				Liability Derivatives
Derivatives Not Designated as Hedging Instruments	Balance Sheet Location	Fair Value at March 31, 2018		Fair Value at December 31, 2017		Fair Value at March 31, 2018			Fair Value at December 31, 2017
Prepaid forward contracts	Derivative contracts, current	$	9,211	$	52,545	$	(9,211	)	$	(52,545	)
Prepaid forward contracts	Derivative contracts, long-term	63,343		—		(4,495		)	(109,504		)
Interest rate swap contracts	Liabilities under derivative contracts, long-term	—		—		(109,824		)	(77,902		)
		$	72,554	$	52,545	$	(123,530	)	$	(239,951	)

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FAIR VALUE MEASUREMENT (Tables)

3 Months Ended

Mar. 31, 2018

Fair Value Disclosures [Abstract]

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The following table presents for each of these hierarchy levels, the Company's financial assets and financial liabilities that are measured at fair value on a recurring basis:

	Fair Value Hierarchy	March 31, 2018		December 31, 2017
Assets:
Money market funds	Level I	$	1,121,432	$	5,949
Investment securities pledged as collateral	Level I	1,467,781		1,720,357
Prepaid forward contracts	Level II	72,554		52,545
Liabilities:
Prepaid forward contracts	Level II	13,706		162,049
Interest rate swap contracts	Level II	109,824		77,902
Contingent consideration related to 2017 acquisitions	Level III	3,233		32,233

Schedule of Carrying Values and Estimated Fair Values of Debt Instruments

		March 31, 2018				December 31, 2017
	Fair Value Hierarchy	Carrying Amount (a)		Estimated Fair Value		Carrying Amount (a)		Estimated Fair Value
CSC Holdings debt instruments:
Credit facility debt	Level II	$	4,442,684	$	4,477,500	$	3,393,306	$	3,435,000
Collateralized indebtedness	Level II	1,351,271		1,298,060		1,349,474		1,305,932
Senior guaranteed notes	Level II	3,283,283		3,231,825		2,291,185		2,420,000
Senior notes and debentures	Level II	6,108,028		6,797,434		6,409,889		7,221,846
Notes payable	Level II	78,938		76,340		56,956		55,289
Cablevision senior notes:
Senior notes and debentures	Level II	1,068,142		1,172,906		1,818,115		1,931,239
Cequel debt instruments:
Cequel credit facility	Level II	1,247,318		1,255,513		1,250,217		1,258,675
Senior secured notes	Level II	2,571,465		2,580,000		2,570,506		2,658,930
Senior notes	Level II	2,779,048		2,987,700		2,770,737		2,983,615
Notes payable	Level II	24,149		24,149		8,946		8,946
		$	22,954,326	$	23,901,427	$	21,919,331	$	23,279,472

(a) Amounts are net of unamortized deferred financing costs and discounts.

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SHARE BASED COMPENSATION (Tables)

3 Months Ended

Mar. 31, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Activity for Shares

The following table summarizes activity relating to carry units:

	Number of Time Vesting Awards		Number of Performance Based Vesting Awards	Weighted Average Grant Date Fair Value
Balance, December 31, 2017	168,550,001		10,000,000	$	0.71
Forfeited	(3,500,001	)	—	0.86
Balance, March 31, 2018	165,050,000		10,000,000	0.71

Stock Option Activity

The following table summarizes activity related to employee stock options for the three months ended March 31, 2018:

	Shares Under Option				Weighted Average Exercise Price Per Share		Weighted Average Remaining Contractual Term (in years)
	Time Vesting		Performance Based Vesting					Aggregate Intrinsic Value (a)
Balance at December 31, 2017	5,110,747		—		$	19.48	9.97	$	8,944
Granted	298,394		39,050		21.22
Forfeited	(103,766	)	(22,314	)	21.81
Balance at March 31, 2018	5,305,375		16,736		$	19.54	9.92	(5,615		)
Options exercisable at March 31, 2018	—		—		—		—	—

(a) The aggregate intrinsic value is calculated as the difference between the exercise price and the closing price of the Company's Class A common stock at the respective date.

Aggregate Assumptions Used to Calculated the Fair Values of Stock Options

The following aggregate assumptions were used to calculate the fair values of stock option awards granted during the three months ended March 31, 2018:

Risk-free interest rate	2.64%
Expected life (in years)	6.49
Dividend yield	—%
Volatility	33.86%
Grant date fair value	$7.49

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RELATED PARTY TRANSACTIONS (Tables)

3 Months Ended

Mar. 31, 2018

Related Party Transactions [Abstract]

Summary of related party transactions

Aggregate amounts that were due from and due to related parties are summarized below:

	March 31, 2018		December 31, 2017
Due from:
Altice US Finance S.A. (a)	$	12,951	$	12,951
Newsday (b)	2,558		2,713
Altice Management Americas (b)	1,271		33
i24 News (b)	4,335		4,036
Other Altice N.V. subsidiaries (b)	31		31
	$	21,146	$	19,764
Due to:
Altice Management International (c)	7,500		—
Newsday (b)	33		33
Altice Labs S.A. (c)	1,051		7,354
Other Altice N.V. subsidiaries (c)	2,494		3,611
	$	11,078	$	10,998

(a) Represents interest on senior notes paid by the Company on behalf of the affiliate.

(b) Represents amounts paid by the Company on behalf of the respective related party and for Newsday, the net amounts due from the related party also include charges for certain transition services provided.

(c) Represents amounts due to affiliates for services provided to the Company.

The following table summarizes the revenue and charges related to services provided to or received from subsidiaries of Altice N.V. and Newsday:

	Three Months Ended March 31,
	2018			2017
Revenue	$	125		$	141
Operating expenses:
Programming and other direct costs	(1,154		)	(735		)
Other operating expenses, net	(7,994		)	(7,298		)
Operating expenses, net	(9,148		)	(8,033		)
Interest expense (a)	—			(47,588		)
Net charges	$	(9,023	)	$	(55,480	)
Capital Expenditures	$	1,626		$	892

(a) In connection with the Company's IPO in June 2017, the Company converted the notes payable to affiliates and related parties into shares of the Company’s common stock at the IPO price.

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SEGMENT INFORMATION (Tables)

3 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

Schedule of Reconciliation of Adjusted EBITDA to Operating Income (Loss)

The Company has presented the components that reconcile Adjusted EBITDA to operating income, an accepted GAAP measure:

	Three Months Ended March 31, 2018						Three Months Ended March 31, 2017
	Cablevision		Cequel		Total		Cablevision		Cequel		Total
Operating income	$	170,693	$	142,345	$	313,038	$	122,044	$	128,066	$	250,110
Share-based compensation	16,172		5,451		21,623		5,082		2,766		7,848
Restructuring and other expense	3,083		504		3,587		58,647		18,282		76,929
Depreciation and amortization (including impairments)	485,364		157,341		642,705		443,176		165,548		608,724
Adjusted EBITDA	$	675,312	$	305,641	$	980,953	$	628,949	$	314,662	$	943,611

Reconciliation of Reportable Segment Amounts to Cablevision's and CSC Holdings' Consolidated Balances

A reconciliation of reportable segment amounts to the Company's condensed consolidated balances are as follows:

	Three Months Ended March 31,
	2018			2017
Operating income for reportable segments	$	313,038		$	250,110
Items excluded from operating income:
Interest expense	(377,258		)	(433,294		)
Interest income	3,103			232
Gain (loss) on investments and sale of affiliate interests, net	(248,602		)	131,658
Gain (loss) on derivative contracts, net	168,352			(71,044		)
Gain (loss) on interest rate swap contracts	(31,922		)	2,342
Loss on extinguishment of debt and write-off of deferred financing costs	(4,705		)	—
Other expense, net	(11,658		)	(2,100		)
Loss before income taxes	$	(189,652	)	$	(122,096	)

Schedule of Revenue by Products and Services and Segments

The following tables present the composition of revenue by segment:

	Three Months Ended March 31, 2018									Three Months Ended March 31, 2017
	Cablevision		Cequel		Eliminations (a)			Total		Cablevision		Cequel		Total
Residential:
Pay TV	$	763,720	$	269,988	$	—		$	1,033,708	$	802,194	$	281,684	$	1,083,878
Broadband	440,351		261,270		—			701,621		396,333		229,585		625,918
Telephony	135,585		30,453		—			166,038		146,557		34,404		180,961
Business services and wholesale	234,172		98,918		—			333,090		228,544		90,876		319,420
Advertising	74,643		17,068		(4,129		)	87,582		65,132		18,229		83,361
Other	2,823		4,852		—			7,675		3,227		5,494		8,721
Total Revenue	$	1,651,294	$	682,549	$	(4,129	)	$	2,329,714	$	1,641,987	$	660,272	$	2,302,259

(a)     Reflects revenue recognized by Cablevision from the sale of services to Cequel.

Capital Expenditures by Reportable Segment

Capital expenditures (cash basis) by reportable segment are presented below:

	Three Months Ended March 31,
	2018		2017
Cablevision	$	166,801	$	184,399
Cequel	90,814		73,028
	$	257,615	$	257,427

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DESCRIPTION OF BUSINESS AND RELATED MATTERS (Details)		1 Months Ended		3 Months Ended
	Jan. 08, 2018 USD ($)	Jan. 31, 2018 USD ($)	Jun. 30, 2017 shares	Mar. 31, 2018 USD ($) segment	Dec. 31, 2017 USD ($)
Description Of Business [Line Items]
Number of reportable business segments | segment				2
Cash distributions to stockholders	$ 1,500,000,000
Stock repurchase program authorized amount	$ 2,000,000,000
Common Class A
Description Of Business [Line Items]
Number of shares issued in transaction | shares			71,724,139
Fees for Executive Services | Affiliates
Description Of Business [Line Items]
Related party transaction, annual fee				$ 30,000,000	$ 30,000,000
ATS Acquisition
Description Of Business [Line Items]
Entities under common control, percentage of voting interst acquired		70.00%
Entities under common control, consideration transferred		$ 1.00

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2018 USD ($)
Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adoption of ASU No. 2018-02	$ 2,163
Accumulated Other Comprehensive Income (loss)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adoption of ASU No. 2018-02	$ (2,163)

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CHANGE IN ACCOUNTING POLICIES AND ATS ACQUISITION - Narrative (Details) - USD ($) $ in Thousands		3 Months Ended
	Jan. 01, 2018	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Contract liability		$ 129,560		$ 117,679
Other operating expenses		583,023	$ 608,144
Contract asset		23,682		24,329
Goodwill		$ 8,019,849		8,019,861
Impact of ASC 606 | Restatement Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Contract liability				6,978
Other operating expenses			(3,417)
Contract asset				24,329
Goodwill				0
ATS Acquisition | Restatement Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other operating expenses			$ (1,876)
Goodwill				$ 23,101
Installation Services | Impact of ASC 606
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect on retained earnings, net of tax	$ 5,093
Cumulative effect on retained earnings, tax	1,885
Commissions | Impact of ASC 606
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect on retained earnings, net of tax	17,759
Cumulative effect on retained earnings, tax	$ 6,570

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CHANGE IN ACCOUNTING POLICIES AND ATS ACQUISITION - Balance Sheet (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cash and cash equivalents	$ 1,427,651	$ 329,848
Other current assets		573,751
Property, plant and equipment, net	5,819,544	6,023,826
Goodwill	8,019,849	8,019,861
Other assets, long-term		19,864,796
Total assets	35,279,409	34,812,082
Current liabilities	2,760,457	2,520,362
Deferred tax liability	4,729,578	4,769,286
Liabilities, long-term		21,786,391
Total liabilities	29,647,786	29,076,039
Redeemable equity	234,637	231,290
Paid-in capital	4,682,646	4,665,229
Retained earnings	713,848	840,636
Total stockholders' equity	5,396,986	5,504,753
Total liabilities and stockholders' equity	$ 35,279,409	34,812,082
As Reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cash and cash equivalents		273,329
Other current assets		580,231
Property, plant and equipment, net		6,063,829
Goodwill		7,996,760
Other assets, long-term		19,861,076
Total assets		34,775,225
Current liabilities		2,492,983
Deferred tax liability		4,775,115
Liabilities, long-term		21,779,997
Total liabilities		29,048,095
Redeemable equity		231,290
Paid-in capital		4,642,128
Retained earnings		854,824
Total stockholders' equity		5,495,840
Total liabilities and stockholders' equity		34,775,225
Impact of ASC 606 | Restatement Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cash and cash equivalents		0
Other current assets		14,068
Property, plant and equipment, net		0
Goodwill		0
Other assets, long-term		10,261
Total assets		24,329
Current liabilities		6,978
Deferred tax liability		4,685
Liabilities, long-term		0
Total liabilities		11,663
Redeemable equity		0
Paid-in capital		0
Retained earnings		12,666
Total stockholders' equity		12,666
Total liabilities and stockholders' equity		24,329
ATS Acquisition | Restatement Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cash and cash equivalents		56,519
Other current assets		(20,548)
Property, plant and equipment, net		(40,003)
Goodwill		23,101
Other assets, long-term		(6,541)
Total assets		12,528
Current liabilities		20,401
Deferred tax liability		(10,514)
Liabilities, long-term		6,394
Total liabilities		16,281
Redeemable equity		0
Paid-in capital		23,101
Retained earnings		(26,854)
Total stockholders' equity		(3,753)
Total liabilities and stockholders' equity		$ 12,528

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CHANGE IN ACCOUNTING POLICIES AND ATS ACQUISITION - Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue	$ 2,329,714	$ 2,302,259
Programming and other direct costs	787,361	758,352
Other operating expenses	583,023	608,144
Restructuring and other expense	3,587	76,929
Depreciation and amortization (including impairments)	642,705	608,724
Operating income	313,038	250,110
Other expense, net	(502,690)	(372,206)
Loss before income taxes	(189,652)	(122,096)
Income tax benefit	60,703	45,908
Net loss	$ (128,949)	(76,188)
As Reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue		2,305,676
Programming and other direct costs		758,352
Other operating expenses		613,437
Restructuring and other expense		76,929
Depreciation and amortization (including impairments)		608,724
Operating income		248,234
Other expense, net		(370,330)
Loss before income taxes		(122,096)
Income tax benefit		45,908
Net loss		(76,188)
Impact of ASC 606 | Restatement Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue		(3,417)
Programming and other direct costs		0
Other operating expenses		(3,417)
Restructuring and other expense		0
Depreciation and amortization (including impairments)		0
Operating income		0
Other expense, net		0
Loss before income taxes		0
Income tax benefit		0
Net loss		0
Pay TV
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue		1,083,878
Pay TV | As Reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue		1,071,361
Pay TV | Impact of ASC 606 | Restatement Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue		12,517
Broadband
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue		625,918
Broadband | As Reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue		611,769
Broadband | Impact of ASC 606 | Restatement Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue		14,149
Telephony
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue		180,961
Telephony | As Reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue		210,873
Telephony | Impact of ASC 606 | Restatement Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue		(29,912)
Business services and wholesale
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue		319,420
Business services and wholesale | As Reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue		319,591
Business services and wholesale | Impact of ASC 606 | Restatement Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue		(171)
Advertising
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue		83,361
Advertising | As Reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue		83,361
Advertising | Impact of ASC 606 | Restatement Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue		0
Other
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue		8,721
Other | As Reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue		8,721
Other | Impact of ASC 606 | Restatement Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue		0
ATS Acquisition | Restatement Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue		0
Programming and other direct costs		0
Other operating expenses		(1,876)
Restructuring and other expense		0
Depreciation and amortization (including impairments)		0
Operating income		1,876
Other expense, net		(1,876)
Loss before income taxes		0
Income tax benefit		0
Net loss		0
ATS Acquisition | Pay TV | Restatement Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue		0
ATS Acquisition | Broadband | Restatement Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue		0
ATS Acquisition | Telephony | Restatement Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue		0
ATS Acquisition | Business services and wholesale | Restatement Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue		0
ATS Acquisition | Advertising | Restatement Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue		0
ATS Acquisition | Other | Restatement Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue		$ 0

XML

REVENUE AND CONTRACT ASSETS - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Disaggregation of Revenue [Line Items]
Franchise fees and other taxes and fees	$ 63,830	$ 64,986
Minimum
Disaggregation of Revenue [Line Items]
Contract term	3 years
Maximum
Disaggregation of Revenue [Line Items]
Contract term	5 years

XML

REVENUE AND CONTRACT ASSETS - Contract Assets and Contract Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Revenue from Contract with Customer [Abstract]
Contract assets	$ 23,682	$ 24,329
Deferred revenue	$ 129,560	$ 117,679

XML

SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Continuing Operations:
Property and equipment accrued but unpaid	$ 91,036	$ 61,170
Notes payable to vendor	30,237	0
Capital lease obligations	656	0
Supplemental Data:
Cash interest paid	464,763	524,864
Income taxes paid (refunded), net	$ (1,027)	$ 1,553

XML

RESTRUCTURING COSTS AND OTHER EXPENSE (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Restructuring Reserve [Roll Forward]
Accrual, beginning balance	$ 123,100
Restructuring charges	1,321	$ 76,751
Payments and other	(42,944)
Accrual, ending balance	81,477
Transaction costs	2,266	$ 178
Severance and Other Employee Related Costs
Restructuring Reserve [Roll Forward]
Accrual, beginning balance	113,474
Restructuring charges	1,818
Payments and other	(38,469)
Accrual, ending balance	76,823
Facility Realignment and Other Costs
Restructuring Reserve [Roll Forward]
Accrual, beginning balance	9,626
Restructuring charges	(497)
Payments and other	(4,475)
Accrual, ending balance	4,654
Cablevision
Restructuring Reserve [Roll Forward]
Cumulative restructuring costs	310,294
Cequel
Restructuring Reserve [Roll Forward]
Cumulative restructuring costs	$ 67,526

XML

INTANGIBLE ASSETS - Summary of Acquired Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 7,075,027		$ 7,075,027
Accumulated Amortization	(2,240,390)		(2,008,573)
Net Carrying Amount	4,834,637		5,066,454
Amortization of intangible assets	231,817	$ 238,019
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	5,970,884		5,970,884
Accumulated Amortization	(1,603,142)		(1,409,021)
Net Carrying Amount	4,367,742		4,561,863
Trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,067,083		1,067,083
Accumulated Amortization	(624,276)		(588,574)
Net Carrying Amount	442,807		478,509
Other amortizable intangible assets
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	37,060		37,060
Accumulated Amortization	(12,972)		(10,978)
Net Carrying Amount	$ 24,088		$ 26,082
Minimum | Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	8 years
Minimum | Trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	2 years
Minimum | Other amortizable intangible assets
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	1 year
Maximum | Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	18 years
Maximum | Trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	5 years
Maximum | Other amortizable intangible assets
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	15 years

XML

INTANGIBLE ASSETS - Summary of Acquired Indefinite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Acquired Indefinite-lived Intangible Assets [Line Items]
Cable television franchises	$ 13,020,081	$ 13,020,081
Goodwill	8,019,849	8,019,861
Total	21,039,930	21,039,942
Cablevision
Acquired Indefinite-lived Intangible Assets [Line Items]
Cable television franchises	8,113,575	8,113,575
Goodwill	5,866,108	5,866,120
Total	13,979,683	13,979,695
Cequel
Acquired Indefinite-lived Intangible Assets [Line Items]
Cable television franchises	4,906,506	4,906,506
Goodwill	2,153,741	2,153,741
Total	$ 7,060,247	$ 7,060,247

XML

INTANGIBLE ASSETS - Goodwill (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2018 USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 8,019,861
Adjustments to purchase accounting relating to Cablevision Acquisition	(12)
Goodwill, ending balance	8,019,849
As Reported
Goodwill [Roll Forward]
Goodwill, beginning balance	7,996,760
ATS Acquisition | Restatement Adjustment
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 23,101

XML

DEBT - Credit Facilities Outstanding (Details) - USD ($)	Mar. 31, 2018	Jan. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Principal Amount	$ 5,733,013,000		$ 4,693,675,000
Credit facility, Carrying Value	5,690,002,000		4,643,523,000
Less: Current portion	53,900,000		42,650,000
Credit facility, noncurrent	$ 5,636,102,000		4,600,873,000
CSC Holdings Revolving Credit Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Stated interest rate	0.00%
Principal Amount	$ 0		450,000,000
Credit facility, Carrying Value	0		425,488,000
Letters of credit outstanding	115,973,000
Line of credit facility, remaining borrowing capacity	$ 2,184,027,000
CSC Holdings Term Loan Facility | Term Loan
Debt Instrument [Line Items]
Stated interest rate	4.04%
Principal Amount	$ 2,977,500,000	$ 1,500,000,000	2,985,000,000
Credit facility, Carrying Value	$ 2,960,859,000		2,967,818,000
CSC Holdings Incremental Term Loan Facility | Term Loan
Debt Instrument [Line Items]
Stated interest rate	4.28%
Principal Amount	$ 1,500,000,000		0
Credit facility, Carrying Value	$ 1,481,825,000		0
Cequel Revolving Credit Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Stated interest rate	0.00%
Principal Amount	$ 0		0
Credit facility, Carrying Value	0		0
Letters of credit outstanding	13,500,000
Line of credit facility, remaining borrowing capacity	$ 336,500,000
Cequel Term Loan Facility | Term Loan
Debt Instrument [Line Items]
Stated interest rate	4.13%
Principal Amount	$ 1,255,513,000		1,258,675,000
Credit facility, Carrying Value	$ 1,247,318,000		$ 1,250,217,000

XML

DEBT - Credit Facilities Narrative (Details) - USD ($)	1 Months Ended	3 Months Ended
	Jan. 31, 2018	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Line of Credit Facility [Line Items]
Proceeds from credit facility debt, net of discounts		$ 1,642,500,000	$ 225,000,000
Principal Amount		5,733,013,000		$ 4,693,675,000
Repayment of credit facility debt		610,663,000	$ 183,288,000
CSC Holdings Revolving Credit Facility | Revolving Credit Facility
Line of Credit Facility [Line Items]
Proceeds from credit facility debt, net of discounts	$ 150,000,000
Principal Amount		0		450,000,000
Repayment of credit facility debt	600,000,000
CSC Holdings Term Loan Facility | Term Loan
Line of Credit Facility [Line Items]
Principal Amount	$ 1,500,000,000	$ 2,977,500,000		$ 2,985,000,000
Debt issued percentage of par	99.50%
CSC Holdings Term Loan Facility | Term Loan | Base Rate
Line of Credit Facility [Line Items]
basis spread on variable rate	1.50%
CSC Holdings Term Loan Facility | Term Loan | Eurodollar
Line of Credit Facility [Line Items]
basis spread on variable rate	2.50%

XML

DEBT - Senior Guaranteed Notes and Senior Notes and Debentures (Details) - USD ($)		1 Months Ended	3 Months Ended
	Jun. 21, 2016	Feb. 28, 2018	Mar. 31, 2018	Jan. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Principal Amount			$ 5,733,013,000		$ 4,693,675,000
Carrying Amount			15,809,966,000		15,860,432,000
Less: current portion			1,042,143,000		507,744,000
Long-term debt			14,767,823,000		15,352,688,000
Senior Notes
Debt Instrument [Line Items]
Principal Amount			$ 16,239,245,000		16,289,245,000
Senior Notes | 7.875% Notes due February 15, 2018
Debt Instrument [Line Items]
Interest Rate			7.875%
Principal Amount			$ 0		300,000,000
Carrying Amount			$ 0		301,184,000
Extinguishment of debt		$ 300,000,000
Senior Notes | 7.625% Notes due July 15, 2018
Debt Instrument [Line Items]
Interest Rate			7.625%
Principal Amount			$ 500,000,000		500,000,000
Carrying Amount			$ 504,213,000		507,744,000
Senior Notes | 8.625% Notes due February 15, 2019
Debt Instrument [Line Items]
Interest Rate			8.625%
Principal Amount			$ 526,000,000		526,000,000
Carrying Amount			$ 537,930,000		541,165,000
Senior Notes | 6.75% Notes due November 15, 2021
Debt Instrument [Line Items]
Interest Rate			6.75%
Principal Amount			$ 1,000,000,000		1,000,000,000
Carrying Amount			$ 962,332,000		960,146,000
Senior Notes | 5.25% Notes due June 1, 2024
Debt Instrument [Line Items]
Interest Rate			5.25%
Principal Amount			$ 750,000,000		750,000,000
Carrying Amount			$ 663,291,000		660,601,000
Senior Notes | 10.125% Notes due January 15, 2023
Debt Instrument [Line Items]
Interest Rate			10.125%
Principal Amount			$ 1,800,000,000		1,800,000,000
Carrying Amount			$ 1,778,745,000		1,777,914,000
Senior Notes | Senior Notes due in 2025
Debt Instrument [Line Items]
Redemption price, percentage			100.00%
Senior Notes | 10.875% Notes due October 15, 2025
Debt Instrument [Line Items]
Interest Rate			10.875%
Principal Amount			$ 1,684,221,000		1,684,221,000
Carrying Amount			$ 1,661,516,000		1,661,135,000
Senior Notes | 6.625% Notes due October 15, 2025
Debt Instrument [Line Items]
Interest Rate			6.625%
Principal Amount			$ 1,000,000,000		1,000,000,000
Carrying Amount			$ 987,037,000		986,717,000
Senior Notes | 5.5% Notes due April 15, 2027
Debt Instrument [Line Items]
Interest Rate			5.50%
Principal Amount			$ 1,310,000,000		1,310,000,000
Carrying Amount			$ 1,304,581,000		1,304,468,000
Redemption price, percentage			105.50%
Senior Notes | 5.375% Notes Due February 1, 2028
Debt Instrument [Line Items]
Interest Rate			5.375%	5.375%
Principal Amount			$ 1,000,000,000	$ 1,000,000,000	0
Carrying Amount			$ 991,665,000		0
Redeemable debt, percent			40.00%
Redemption price, percentage			105.375%
Senior Notes | 7.75% Notes due April 15, 2018
Debt Instrument [Line Items]
Interest Rate			7.75%
Principal Amount			$ 0		750,000,000
Carrying Amount			$ 0		754,035,000
Extinguishment of debt		$ 750,000,000
Senior Notes | 8.0% Notes due April 15, 2020
Debt Instrument [Line Items]
Interest Rate			8.00%
Principal Amount			$ 500,000,000		500,000,000
Carrying Amount			$ 492,795,000		492,009,000
Senior Notes | 5.875% Notes due September 15, 2022
Debt Instrument [Line Items]
Interest Rate			5.875%
Principal Amount			$ 649,024,000		649,024,000
Carrying Amount			$ 575,348,000		572,071,000
Senior Notes | 6.375% Senior Notes due September 15, 2020
Debt Instrument [Line Items]
Interest Rate			6.375%
Principal Amount			$ 1,050,000,000		1,050,000,000
Carrying Amount			$ 1,029,364,000		1,027,493,000
Senior Notes | 5.125% Senior Notes due December 15, 2021
Debt Instrument [Line Items]
Interest Rate			5.125%
Principal Amount			$ 1,250,000,000		1,250,000,000
Carrying Amount			$ 1,144,929,000		1,138,870,000
Senior Notes | 7.75% Senior Notes due July 15, 2025
Debt Instrument [Line Items]
Interest Rate			7.75%
Principal Amount			$ 620,000,000		620,000,000
Carrying Amount			$ 604,755,000		604,374,000
Redeemable debt, percent			40.00%
Redemption price, percentage			107.75%
Senior Notes | 5.375% Senior Notes due July 15, 2023
Debt Instrument [Line Items]
Interest Rate			5.375%
Principal Amount			$ 1,100,000,000		1,100,000,000
Carrying Amount			$ 1,083,159,000		1,082,482,000
Redeemable debt, percent			40.00%
Redemption price, percentage			105.375%
Senior Notes | 5.5% Senior Notes due May 15, 2026
Debt Instrument [Line Items]
Interest Rate			5.50%
Principal Amount			$ 1,500,000,000		1,500,000,000
Carrying Amount			$ 1,488,306,000		$ 1,488,024,000
Redeemable debt, percent			40.00%
Redemption price, percentage			105.50%
Cablevision | Senior Notes | CSC Holdings Senior Notes
Debt Instrument [Line Items]
Redeemable debt, percent			40.00%
Adjustment to fair value	$ 52,788,000
Cablevision | Senior Notes | 10.125% Notes due January 15, 2023
Debt Instrument [Line Items]
Redemption price, percentage			110.125%
Cablevision | Senior Notes | 10.875% Notes due October 15, 2025
Debt Instrument [Line Items]
Redemption price, percentage			110.875%
Cablevision | Senior Notes | 6.625% Notes due October 15, 2025
Debt Instrument [Line Items]
Redemption price, percentage			106.625%

XML

DEBT - Senior Guaranteed Notes and Senior Notes and Debentures Narrative (Details) - USD ($)		1 Months Ended
	Jan. 08, 2018	Feb. 28, 2018	Mar. 31, 2018	Jan. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Principal Amount			$ 5,733,013,000		$ 4,693,675,000
Dividends	$ 1,500,000,000
Senior Notes
Debt Instrument [Line Items]
Principal Amount			16,239,245,000		16,289,245,000
Senior Notes | 5.375% Notes Due February 1, 2028
Debt Instrument [Line Items]
Principal Amount			$ 1,000,000,000	$ 1,000,000,000	0
Interest Rate			5.375%	5.375%
Senior Notes | 7.875% Notes due February 15, 2018
Debt Instrument [Line Items]
Principal Amount			$ 0		300,000,000
Interest Rate			7.875%
Extinguishment of debt		$ 300,000,000
Senior Notes | 7.75% Notes due April 15, 2018
Debt Instrument [Line Items]
Principal Amount			$ 0		$ 750,000,000
Interest Rate			7.75%
Extinguishment of debt		$ 750,000,000

XML

DEBT - Notes Payable to Affiliates and Related Perties (Details) - USD ($)	3 Months Ended
	Jun. 30, 2017	Mar. 31, 2017	Mar. 31, 2018	Dec. 31, 2017	Jun. 21, 2016
Debt Instrument [Line Items]
Principal Amount			$ 5,733,013,000	$ 4,693,675,000
Cablevision | Affiliates | Notes payable
Debt Instrument [Line Items]
Principal Amount					$ 1,750,000,000
Interest payable					529,000
Debt premium					513,723,000
Interest expense		$ 47,588,000
Notes Payable at 10.75% | Cablevision | Affiliates | Notes payable
Debt Instrument [Line Items]
Principal Amount					$ 875,000,000
Stated interest rate					10.75%
Notes Payable at 11% | Cablevision | Affiliates | Notes payable
Debt Instrument [Line Items]
Principal Amount					$ 875,000,000
Stated interest rate					11.00%
Organizational Transactions Prior to IPO
Debt Instrument [Line Items]
Stock issued	$ 2,264,252,000

XML

DEBT - Summary of Debt Maturities (Details) $ in Thousands	Mar. 31, 2018 USD ($)
Debt Instrument [Line Items]
2018	$ 595,491
2020	612,150
2021	1,610,232
2022	3,769,132
2021	708,536
Thereafter	16,228,903
Cablevision
Debt Instrument [Line Items]
2018	581,298
2020	579,587
2021	547,517
2022	2,506,407
2021	695,806
Thereafter	11,812,663
Cequel
Debt Instrument [Line Items]
2018	14,193
2020	32,563
2021	1,062,715
2022	1,262,725
2021	12,730
Thereafter	$ 4,416,240

XML

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS - Location of Assets and Liabilities Within the Consolidated Balance Sheets (Details) - Not Designated as Hedging Instruments - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Derivative Instruments, Fair Value [Abstract]
Asset Derivatives	$ 72,554	$ 52,545
Liability Derivatives	(123,530)	(239,951)
Prepaid forward contracts | Current derivative contracts
Derivative Instruments, Fair Value [Abstract]
Asset Derivatives	9,211	52,545
Liability Derivatives	(9,211)	(52,545)
Prepaid forward contracts | Long-term derivative contracts
Derivative Instruments, Fair Value [Abstract]
Asset Derivatives	63,343	0
Liability Derivatives	(4,495)	(109,504)
Interest Rate Swap | Long-term liabilities under derivative contracts
Derivative Instruments, Fair Value [Abstract]
Liability Derivatives	$ (109,824)	$ (77,902)

XML

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS - Narrative (Details)	3 Months Ended
	Mar. 31, 2018 USD ($)	Mar. 31, 2017 USD ($)	Jun. 30, 2016 USD ($) instrument
Derivative [Line Items]
Gain (loss) on investments and sale of affiliate interests, net	$ (252,576,000)	$ 131,658,000
Interest Rate Swap
Derivative [Line Items]
Amount of gain (loss) recognized	(31,922,000)	2,342,000
Interest Rate Swap | Not Designated as Hedging Instruments
Derivative [Line Items]
Number of derivative instruments held | instrument			2
Interest Rate Swap, Conversion, Tranche One | Not Designated as Hedging Instruments
Derivative [Line Items]
Derivative notional amount			$ 750,000,000
Derivative, fixed interest rate			1.6655%
Interest Rate Swap, Conversion, Tranche Two | Not Designated as Hedging Instruments
Derivative [Line Items]
Derivative notional amount			$ 750,000,000
Derivative, fixed interest rate			1.68%
Prepaid forward contracts
Derivative [Line Items]
Amount of gain (loss) recognized	$ 168,352,000	$ (71,044,000)

XML

FAIR VALUE MEASUREMENT - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - Fair Value Measured on a Recurring Basis - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Level III
Liabilities:
Contingent consideration related to 2017 acquisitions	$ 3,233	$ 32,233
Prepaid forward contracts | Level II
Assets:
Derivative asset	72,554	52,545
Liabilities:
Derivative liability	13,706	162,049
Interest rate swap contracts | Level II
Liabilities:
Derivative liability	109,824	77,902
Investment securities pledged as collateral | Level I
Assets:
Investment securities	1,467,781	1,720,357
Money market funds | Level I
Assets:
Cash and cash equivalents	$ 1,121,432	$ 5,949

XML

FAIR VALUE MEASUREMENT - Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	$ 22,954,326	$ 21,919,331
Estimated Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	23,901,427	23,279,472
CSC Holdings | Credit facility debt | Carrying Amount | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	4,442,684	3,393,306
CSC Holdings | Credit facility debt | Estimated Fair Value | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	4,477,500	3,435,000
CSC Holdings | Collateralized indebtedness | Carrying Amount | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	1,351,271	1,349,474
CSC Holdings | Collateralized indebtedness | Estimated Fair Value | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	1,298,060	1,305,932
CSC Holdings | Senior guaranteed notes | Carrying Amount | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	3,283,283	2,291,185
CSC Holdings | Senior guaranteed notes | Estimated Fair Value | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	3,231,825	2,420,000
CSC Holdings | Senior notes and debentures | Carrying Amount | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	6,108,028	6,409,889
CSC Holdings | Senior notes and debentures | Estimated Fair Value | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	6,797,434	7,221,846
CSC Holdings | Notes payable | Carrying Amount | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	78,938	56,956
CSC Holdings | Notes payable | Estimated Fair Value | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	76,340	55,289
Cablevision | Senior notes and debentures | Carrying Amount | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	1,068,142	1,818,115
Cablevision | Senior notes and debentures | Estimated Fair Value | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	1,172,906	1,931,239
Cequel | Credit facility debt | Carrying Amount | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	1,247,318	1,250,217
Cequel | Credit facility debt | Estimated Fair Value | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	1,255,513	1,258,675
Cequel | Senior notes and debentures | Carrying Amount | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	2,779,048	2,770,737
Cequel | Senior notes and debentures | Estimated Fair Value | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	2,987,700	2,983,615
Cequel | Notes payable | Carrying Amount | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	24,149	8,946
Cequel | Notes payable | Estimated Fair Value | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	24,149	8,946
Cequel | Senior secured notes | Carrying Amount | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	2,571,465	2,570,506
Cequel | Senior secured notes | Estimated Fair Value | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	$ 2,580,000	$ 2,658,930

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FAIR VALUE MEASUREMENT - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
First Quarter Acquisitions, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration related to 2017 acquisitions	$ 1,000
Fourth Quarter Acquisitions, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration related to 2017 acquisitions		$ 2,233
Contingent consideration, percent of contractual amount of acquisitions recognized	51.00%

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INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ 60,703	$ 45,908
Effective tax rate (percent)	32.00%	38.00%
Income tax expense related to share-based compensation cost		$ 3,140
Effective income tax rate excluding share-based compensation expense		40.00%
Federal
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 2,486,000

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SHARE BASED COMPENSATION - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Carry Unit Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Repurchase period following termination	60 days
Repurchase period following fourth anniversary	60 days
Carry unit plan, written promissory note period	3 years
Weighted average fair value (in dollars per unit)	$ 2.10		$ 2.50
Employee and non-employee share-based compensation expense	$ 17,501	$ 7,848
Employee share-based compensation expense	16,872	5,786
Non-employee share-based compensation expense	$ 629	$ 2,062
Carry Unit Awards | Second Anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage	50.00%
Carry Unit Awards | Third Anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage	25.00%
Carry Unit Awards | Fourth Anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage	25.00%
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee share-based compensation expense	$ 4,122

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SHARE BASED COMPENSATION - Carrying Unit Award Activity (Details)	3 Months Ended
	Mar. 31, 2018 $ / shares shares
Carry Unit Awards
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Balance at beginning of period, weighted average grant date fair value (in dollars per share) | $ / shares	$ 0.71
Forfeited weighted average grant date fair value (in dollars per share) | $ / shares	0.86
Balance at End of period, weighted average grant date fair value (in dollars per share) | $ / shares	$ 0.71
Time Vesting Awards
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Beginning balance (in shares)	168,550,001
Forfeited (in shares)	(3,500,001)
Ending balance (in shares)	165,050,000
Performance Based Vesting Awards
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Beginning balance (in shares)	10,000,000
Forfeited (in shares)	0
Ending balance (in shares)	10,000,000

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SHARE BASED COMPENSATION - Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Weighted Average Exercise Price Per Share:
Beginning balance, weighted average exercise price per share (in dollars per share	$ 19.48
Granted, weighted average exercise price per share (in dollars per share)	21.22
Forfeited, weighted average exercise price per share (in dollars per share	21.81
Ending balance, weighted average exercise price per share (in dollars per share	19.54	$ 19.48
Options exercisable, weighted average exercise price per share (in dollars per share)	$ 0.00
Weighted Average Remaining Contractual Term (in years)	9 years 11 months 1 day	9 years 11 months 19 days
Aggregate Intrinsic Value	$ (5,615)	$ 8,944
Time Vesting
Shares Under Option (in shares):
Outstanding balance, beginning of period (in shares)	5,110,747
Granted (in shares)	298,394
Forfeited (in shares)	(103,766)
Outstanding balance, end of period (in shares)	5,305,375	5,110,747
Options exercisable (in shares)	0
Performance Based Vesting
Shares Under Option (in shares):
Outstanding balance, beginning of period (in shares)	0
Granted (in shares)	39,050
Forfeited (in shares)	(22,314)
Outstanding balance, end of period (in shares)	16,736	0
Options exercisable (in shares)	0

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SHARE BASED COMPENSATION - Stock Options Valuation Assumptions (Details)	3 Months Ended
	Mar. 31, 2018 $ / shares
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Risk-free interest rate	2.64%
Expected life (in years)	6 years 5 months 27 days
Dividend yield	0.00%
Volatility	33.86%
Grant date fair value (in dollars per share)	$ 7.49

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AFFILIATE AND RELATED PARTY TRANSACTIONS - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017	Jul. 06, 2016
Related Party Transaction [Line Items]
Equity in net income (loss) from investment in related party	$ (10,442)	$ (2,757)
Related party expense	9,023	55,480
Capital expenditures	2,500	550
Fees for Executive Services | Affiliates
Related Party Transaction [Line Items]
Related party transaction, annual fee	30,000		$ 30,000
Related party expense		7,500
Equipment and Software Development Costs | Affiliates
Related Party Transaction [Line Items]
Capital expenditures	$ 1,626	892
I24News and Altice NV 24/7
Related Party Transaction [Line Items]
Ownership percentage	25.00%
Investment in affiliates and related parties	$ 800
Equity in net income (loss) from investment in related party	$ 1,130	1,247
Newsday
Related Party Transaction [Line Items]
Ownership percentage of noncontrolling interest				75.00%
Ownership percentage	25.00%
Investment in affiliates and related parties	$ 12,891
Equity in net income (loss) from investment in related party	9,312	1,510
Other Operating Expense | Transition Services | Affiliates
Related Party Transaction [Line Items]
Other operating expenses, charges for related party services	$ 494	(202)
Transition services credit		$ 482

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AFFILIATE AND RELATED PARTY TRANSACTIONS - Revenue and Related Charges (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Related Party Transactions [Abstract]
Revenue	$ 125	$ 141
Operating expenses:
Programming and other direct costs	(1,154)	(735)
Other operating expenses, net	(7,994)	(7,298)
Operating expenses, net	(9,148)	(8,033)
Interest expense	0	(47,588)
Net charges	(9,023)	(55,480)
Capital Expenditures	$ 1,626	$ 892

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AFFILIATE AND RELATED PARTY TRANSACTIONS - Amounts Due From and Due to Related Parties (Details) - Affiliates - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Related Party Transaction [Line Items]
Due from related parties and affiliates	$ 21,146	$ 19,764
Due to related parties and affiliates	11,078	10,998
Altice US Finance S.A.
Related Party Transaction [Line Items]
Due from related parties and affiliates	12,951	12,951
Newsday
Related Party Transaction [Line Items]
Due from related parties and affiliates	2,558	2,713
Due to related parties and affiliates	33	33
Altice Management Americas
Related Party Transaction [Line Items]
Due from related parties and affiliates	1,271	33
I24
Related Party Transaction [Line Items]
Due from related parties and affiliates	4,335	4,036
Altice Labs S.A.
Related Party Transaction [Line Items]
Due to related parties and affiliates	1,051	7,354
Other Altice N.V. subsidiaries
Related Party Transaction [Line Items]
Due from related parties and affiliates	31	31
Due to related parties and affiliates	2,494	3,611
Altice Management International
Related Party Transaction [Line Items]
Due to related parties and affiliates	$ 7,500	$ 0

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COMMITMENTS AND CONTINGENCIES (Details) $ in Thousands	Dec. 31, 2017 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Estimated litigation liability	$ 6,000

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SEGMENT INFORMATION - Narrative (Details)	3 Months Ended
	Mar. 31, 2018 segment
Segment Reporting [Abstract]
Number of reportable business segments	2

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SEGMENT INFORMATION - Reconciliation of Adjusted EBITDA to Operating Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Operating Income (Loss) from Continuing Operations Before Income Taxes [Abstract]
Operating income	$ 313,038	$ 250,110
Share-based compensation expense	21,623	7,848
Restructuring and other expense	3,587	76,929
Depreciation and amortization (including impairments)	642,705	608,724
Adjusted EBITDA	980,953	943,611
Cablevision
Operating Income (Loss) from Continuing Operations Before Income Taxes [Abstract]
Operating income	170,693	122,044
Share-based compensation expense	16,172	5,082
Restructuring and other expense	3,083	58,647
Depreciation and amortization (including impairments)	485,364	443,176
Adjusted EBITDA	675,312	628,949
Cequel
Operating Income (Loss) from Continuing Operations Before Income Taxes [Abstract]
Operating income	142,345	128,066
Share-based compensation expense	5,451	2,766
Restructuring and other expense	504	18,282
Depreciation and amortization (including impairments)	157,341	165,548
Adjusted EBITDA	$ 305,641	$ 314,662

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SEGMENT INFORMATION - Reconciliation of Reportable Segments to Consolidated Balances (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Segment Reporting [Abstract]
Operating income for reportable segments	$ 313,038	$ 250,110
Items excluded from operating income:
Interest expense	(377,258)	(433,294)
Interest income	3,103	232
Gain (loss) on investments and sale of affiliate interests, net	(248,602)	131,658
Gain (loss) on derivative contracts, net	168,352	(71,044)
Gain (loss) on interest rate swap contracts	(31,922)	2,342
Loss on extinguishment of debt and write-off of deferred financing costs	(4,705)	0
Other expense, net	(11,658)	(2,100)
Loss before income taxes	$ (189,652)	$ (122,096)

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SEGMENT INFORMATION - Summary of Revenue by Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenue from External Customer [Line Items]
Revenues	$ 2,329,714	$ 2,302,259
Pay TV
Revenue from External Customer [Line Items]
Revenues	1,033,708	1,083,878
Broadband
Revenue from External Customer [Line Items]
Revenues	701,621	625,918
Telephony
Revenue from External Customer [Line Items]
Revenues	166,038	180,961
Business services and wholesale
Revenue from External Customer [Line Items]
Revenues	333,090	319,420
Advertising
Revenue from External Customer [Line Items]
Revenues	87,582	83,361
Other
Revenue from External Customer [Line Items]
Revenues	7,675	8,721
Operating Segments | Cablevision
Revenue from External Customer [Line Items]
Revenues	1,651,294	1,641,987
Operating Segments | Cablevision | Pay TV
Revenue from External Customer [Line Items]
Revenues	763,720	802,194
Operating Segments | Cablevision | Broadband
Revenue from External Customer [Line Items]
Revenues	440,351	396,333
Operating Segments | Cablevision | Telephony
Revenue from External Customer [Line Items]
Revenues	135,585	146,557
Operating Segments | Cablevision | Business services and wholesale
Revenue from External Customer [Line Items]
Revenues	234,172	228,544
Operating Segments | Cablevision | Advertising
Revenue from External Customer [Line Items]
Revenues	74,643	65,132
Operating Segments | Cablevision | Other
Revenue from External Customer [Line Items]
Revenues	2,823	3,227
Operating Segments | Cequel
Revenue from External Customer [Line Items]
Revenues	682,549	660,272
Operating Segments | Cequel | Pay TV
Revenue from External Customer [Line Items]
Revenues	269,988	281,684
Operating Segments | Cequel | Broadband
Revenue from External Customer [Line Items]
Revenues	261,270	229,585
Operating Segments | Cequel | Telephony
Revenue from External Customer [Line Items]
Revenues	30,453	34,404
Operating Segments | Cequel | Business services and wholesale
Revenue from External Customer [Line Items]
Revenues	98,918	90,876
Operating Segments | Cequel | Advertising
Revenue from External Customer [Line Items]
Revenues	17,068	18,229
Operating Segments | Cequel | Other
Revenue from External Customer [Line Items]
Revenues	4,852	$ 5,494
Eliminations
Revenue from External Customer [Line Items]
Revenues	(4,129)
Eliminations | Pay TV
Revenue from External Customer [Line Items]
Revenues	0
Eliminations | Broadband
Revenue from External Customer [Line Items]
Revenues	0
Eliminations | Telephony
Revenue from External Customer [Line Items]
Revenues	0
Eliminations | Business services and wholesale
Revenue from External Customer [Line Items]
Revenues	0
Eliminations | Advertising
Revenue from External Customer [Line Items]
Revenues	(4,129)
Eliminations | Other
Revenue from External Customer [Line Items]
Revenues	$ 0

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SEGMENT INFORMATION - Capital Expenditures by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Segment Reporting Information, Capital Expenditures [Abstract]
Capital expenditures	$ 257,615	$ 257,427
Cablevision
Segment Reporting Information, Capital Expenditures [Abstract]
Capital expenditures	166,801	184,399
Cequel
Segment Reporting Information, Capital Expenditures [Abstract]
Capital expenditures	$ 90,814	$ 73,028

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SUBSEQUENT EVENT (Details) - USD ($)	1 Months Ended
	Apr. 30, 2018	Mar. 31, 2018	Dec. 31, 2017
Subsequent Event [Line Items]
Debt face amount		$ 5,733,013,000	$ 4,693,675,000
Senior Notes
Subsequent Event [Line Items]
Debt face amount		16,239,245,000	16,289,245,000
Senior Notes 7.5% Notes due April 1, 2028 | Senior Notes | Subsequent Event
Subsequent Event [Line Items]
Debt face amount	$ 1,050,000,000
Stated interest rate	7.50%
6.375% Senior Notes due September 15, 2020 | Senior Notes
Subsequent Event [Line Items]
Debt face amount		$ 1,050,000,000	$ 1,050,000,000
Stated interest rate		6.375%
6.375% Senior Notes due September 15, 2020 | Senior Notes | Subsequent Event
Subsequent Event [Line Items]
Stated interest rate	6.375%
Extinguishment of debt	$ 1,050,000,000