Document and Entity Information	3 Months Ended
Document and Entity Information	Mar. 31, 2018
Document and Entity Information [Abstract]
Entity Registrant Name	Altice USA, Inc.
Entity Central Index Key	0001702780
Entity Filer Category	Non-accelerated Filer
Document Type	S-1/A
Amendment Flag	true
Document Period End Date	Mar. 31, 2018
Amendment Description	This prospectus is being furnished to shareholders of Altice N.V., in connection with the planned pro rata distribution by Altice N.V. to its shareholders of 495,366,932 shares consisting of a combination of Class B common stock, par value $0.01 per share, of Altice USA, Inc. and Class A common stock, par value $0.01 per share.

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Current Assets:
Cash and cash equivalents	$ 1,427,651	$ 329,848	$ 486,792
Restricted cash	253	252	16,301
Accounts receivable, trade (less allowance for doubtful accounts of $13,420 and $11,677)	330,761	370,765	349,626
Prepaid expenses and other current assets (including a prepayment to an affiliate of $19,563 in 2017) (See Note 14)	142,366	130,425	102,219
Amounts due from affiliates	21,146	19,764	22,182
Investment securities pledged as collateral		0	741,515
Derivative contracts	9,211	52,545	352
Total current assets	1,931,388	903,599	1,718,987
Property, plant and equipment, net of accumulated depreciation of $2,599,579 and $1,039,297	5,819,544	6,023,826	6,597,635
Investment in affiliates		930	5,606
Investment securities pledged as collateral	1,467,781	1,720,357	741,515
Derivative contracts	63,343	0	10,604
Other assets	122,786	57,904
Other assets (including a prepayment to an affiliate of $6,539 in 2017) (See Note 14)		56,974	58,806
Amortizable intangible assets, net of accumulated amortization	4,834,637	5,066,454	6,352,644
Indefinite-lived cable television franchises	13,020,081	13,020,081	13,020,081
Goodwill	8,019,849	8,019,861	7,992,700
Total assets	35,279,409	34,812,082	36,498,578
Current Liabilities:
Accounts payable	725,625	795,128	705,672
Accrued liabilities:
Interest	296,400	397,422	576,778
Employee related costs	104,824	147,727	232,864
Other accrued expenses	318,098	411,988	352,315
Amounts due to affiliates	11,078	10,998	127,363
Deferred revenue	122,395	111,197	101,794
Liabilities under derivative contracts	9,211	52,545	13,158
Collateralized indebtedness		0	622,332
Credit facility debt	53,900	42,650	33,150
Senior notes and debentures	1,042,143	507,744	926,045
Capital lease obligations	7,699	9,539	15,013
Notes payable	69,084	33,424	5,427
Total current liabilities	2,760,457	2,520,362	3,711,911
Defined benefit plan obligations	97,908	103,163	84,106
Notes payable to affiliates and related parties		0	1,750,000
Other liabilities	131,565	144,289	113,485
Deferred tax liability	4,729,578	4,769,286	7,971,500
Liabilities under derivative contracts	114,319	187,406	78,823
Collateralized indebtedness	1,351,271	1,349,474	663,737
Credit facility debt	5,636,102	4,600,873	3,411,640
Senior guaranteed notes		2,291,185	2,289,494
Senior notes and debentures		13,061,503	14,291,786
Capital lease obligations	11,869	12,441	13,142
Notes payable	34,003	32,478	8,299
Deficit investments in affiliates	12,891	3,579	0
Total liabilities	29,647,786	29,076,039	34,387,923
Commitments and contingencies
Redeemable equity	234,637	231,290	68,147
Stockholders' Equity:
Preferred stock, $.01 par value, 100,000,000 shares authorized, no shares issued and outstanding at December 31, 2017	0	0	0
Paid-in capital	4,682,646	4,665,229	3,003,554
Retained earnings (accumulated deficit)	713,848	840,636	(963,312)
Total stockholders' equity before accumulated other comprehensive Income and non-controlling interest	5,403,865	5,513,236	2,040,242
Accumulated other comprehensive income (loss)	(8,420)	(10,022)	1,979
Total stockholders' equity	5,395,445	5,503,214	2,042,221
Noncontrolling interest	1,541	1,539	287
Total stockholders' equity	5,396,986	5,504,753	2,042,508
Total liabilities and stockholders' equity	35,279,409	34,812,082	36,498,578
Common Class A
Stockholders' Equity:
Common stock	2,470	2,470	0
Common Class B
Stockholders' Equity:
Common stock	4,901	4,901	0
Common Class C
Stockholders' Equity:
Common stock	0	0	0
Undesignated Common Stock
Stockholders' Equity:
Common stock		0	0
Customer relationships
Current Assets:
Amortizable intangible assets, net of accumulated amortization	4,367,742	4,561,863	5,345,608
Trade names
Current Assets:
Amortizable intangible assets, net of accumulated amortization	442,807	478,509	983,386
Amortizable intangible assets
Current Assets:
Amortizable intangible assets, net of accumulated amortization	$ 24,088	$ 26,082	$ 23,650

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Current Assets:
Accounts receivable, trade allowance for doubtful accounts	$ 10,481	$ 13,420	$ 11,677
Prepayment to affiliate included in prepaid expenses and other current assets	142,366	130,425	102,219
Property, plant and equipment, accumulated depreciation	2,983,696	2,599,579	1,039,297
Amortizable intangible assets, accumulated amortization	$ 2,240,390	$ 2,008,573	$ 666,766
Stockholders' Equity:
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	100,000,000	100,000,000	100,000,000
Preferred stock, shares issued (in shares)	0	0	0
Preferred stock, shares outstanding (in shares)	0	0	0
Common stock, par value (in dollars per share)		$ 0.01	$ 0.01
Common stock, shares authorized (in shares)			1,000
Common stock, shares issued (in shares)			100
Common stock, shares outstanding (in shares)			100
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	$ 580,276
Trade names
Current Assets:
Amortizable intangible assets, accumulated amortization	624,276	588,574	83,397
Amortizable intangible assets
Current Assets:
Amortizable intangible assets, accumulated amortization	$ 12,972	$ 10,978	$ 3,093

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017	Dec. 31, 2016
Income Statement [Abstract]
Revenue (including revenue from affiliates of $2,205 and $1,086, respectively) (See Note 14)	$ 2,329,714	$ 2,302,259	$ 9,306,950	$ 6,017,212
Operating expenses:
Programming and other direct costs (including charges from affiliates of $4,176 and $1,947, respectively) (See Note 14)	787,361	758,352	3,035,655	1,911,230
Other operating expenses (including charges from affiliates of $106,084 and $18,854, respectively) (See Note 14)	583,023	608,144	2,347,315	1,702,472
Restructuring and other expense	3,587	76,929	152,401	240,395
Depreciation and amortization (including impairments)			2,930,571	1,700,306
Total operating expenses	2,016,676	2,052,149	8,465,942	5,554,403
Operating income	313,038	250,110	841,008	462,809
Other income (expense):
Interest expense (including interest expense to affiliates and related parties of $90,405 and $112,712, respectively) (See Note 14)	(377,258)	(433,294)	(1,603,132)	(1,456,541)
Interest income	3,103	232	1,921	13,811
Gain on investments, net	(252,576)	131,658	237,354	141,896
Loss on derivative contracts, net	168,352	(71,044)	(236,330)	(53,696)
Gain (loss) on interest rate swap contracts	(31,922)	2,342	5,482	(72,961)
Loss on extinguishment of debt and write-off of deferred financing costs (including $513,723 related to affiliates and related parties in 2017) (See Note 14)	(4,705)	0	(600,240)	(127,649)
Other income (expense), net	(11,658)	(2,100)	(13,651)	1,186
Total other income (expense)	(502,690)	(372,206)	(2,208,596)	(1,553,954)
Loss before income taxes	(189,652)	(122,096)	(1,367,588)	(1,091,145)
Income tax benefit	60,703	45,908	2,862,352	259,666
Net income (loss)	(128,949)	(76,188)	1,494,764	(831,479)
Net loss (income) attributable to noncontrolling interests	(2)	(237)	(1,587)	(551)
Net income (loss) attributable to Altice USA, Inc. stockholders	$ (128,951)	$ (76,425)	$ 1,493,177	$ (832,030)
Basic income (loss) per share (in dollars per share)			$ 2.15	$ (1.28)
Basic weighted average common shares (in thousands) (in shares)			696,055,000	649,525,000
Diluted income (loss) per share (in dollars per share)			$ 2.15	$ (1.28)
Diluted weighted average common shares (in thousands) (in shares)			696,055,000	649,525,000
Basic and diluted weighted average common shares outstanding (in shares)	737,069,000	649,525,000
Cash dividends declared per common share (in dollars per share)			$ 1.29	$ 0.69

CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017	Dec. 31, 2016
Income Statement [Abstract]
Revenue from affiliates	$ 125	$ 141	$ 1,100	$ 1,086
Programming and other direct costs from affiliates	1,154	735	4,176	1,947
Other operating expenses from affiliates	7,994	7,298	33,140	18,854
Interest expense to related parties and affiliates	$ 0	$ 47,588	90,405	112,712
Loss on extinguishment of debt and write-off of deferred financing costs (including $513,723 related to affiliates and related parties in 2017) (See Note 14)			$ 513,723	$ 0

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended									12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (128,949)	$ 2,243,325	$ (192,434)	$ (479,939)	$ (76,188)	$ (236,049)	$ (172,553)	$ (282,129)	$ (140,748)	$ 1,494,764	$ (831,479)
Defined benefit pension plans:
Unrecognized actuarial gain (loss)	4,551				0					(18,632)	3,452
Applicable income taxes	(1,228)				0					7,441	(1,381)
Unrecognized gain (loss) arising during period, net of income taxes	3,323				0					(11,191)	2,071
Curtailment loss, net of settlement losses of $1,845 for 2017 included in net periodic benefit cost	606				0					(1,350)	(154)
Applicable income taxes	(164)				0					540	62
Curtailment loss, net of settlement losses included in net periodic benefit cost, net of income taxes	442				0					(810)	(92)
Other comprehensive gain (loss)	3,765				0					(12,001)	1,979
Comprehensive income (loss)	(125,184)				(76,188)					1,482,763	(829,500)
Comprehensive income attributable to noncontrolling interests	(2)				(237)					(1,587)	(551)
Comprehensive Income (loss) attributable to Altice USA, Inc. stockholders	$ (125,186)				$ (76,425)					$ 1,481,176	$ (830,051)

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Statement of Comprehensive Income [Abstract]
Settlement loss (gain) related to pension plan	$ 1,845	$ 0

CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Organizational Transactions Prior to IPO	IPO	Total Stockholders' Equity	Total Stockholders' Equity Organizational Transactions Prior to IPO	Total Stockholders' Equity IPO	Paid-in Capital	Paid-in Capital Organizational Transactions Prior to IPO	Paid-in Capital IPO	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Income	Non-controlling Interest	Common Class A Common Stock	Common Class A Common Stock Organizational Transactions Prior to IPO	Common Class A Common Stock IPO	Common Class B Common Stock	Common Class B Common Stock Organizational Transactions Prior to IPO	Altice Technical Services	Altice Technical Services Total Stockholders' Equity	Altice Technical Services Paid-in Capital	Altice Technical Services Retained Earnings (Accumulated Deficit)
Ending balance at Dec. 31, 2015	$ 2,108,080			$ 2,108,080			$ 2,252,028			$ (143,948)	$ 0	$ 0	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Impact of change in accounting policy in connection with the adoption of ASU No. 2014-09	12,666			12,666						12,666
Balance at January 1, 2016, as adjusted	2,120,746			2,120,746			2,252,028			(131,282)
Beginning balance at Dec. 31, 2015	2,108,080			2,108,080			2,252,028			(143,948)	0	0	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to stockholders	(832,030)			(832,030)						(832,030)
Noncontrolling interests acquired	(264)											(264)
Net income attributable to noncontrolling interests	551											551
Pension liability adjustments, net of income taxes	1,979			1,979							1,979
Share-based compensation expense	14,368			14,368			14,368
Change in redeemable equity	(68,148)			(68,148)			(68,148)
Contributions from stockholders	1,246,499			1,246,499			1,246,499
Distributions to stockholders/non-controlling interest	(445,176)			(445,176)			(445,176)
Excess tax benefit on share-based awards	31			31			31
Tax impact related to the Newsday Holdings, LLC transactions	3,952			3,952			3,952
Ending balance (Scenario, Previously Reported) at Dec. 31, 2016	2,029,842
Ending balance (Restatement Adjustment, Accounting Standards Update 2014-09)	12,666
Ending balance at Dec. 31, 2016	2,042,508			2,042,221			3,003,554			(963,312)	1,979	287	0			$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to stockholders	1,493,177			1,493,177						1,493,177
Receivable from parent	(50,000)			(50,000)			(50,000)
Net income attributable to noncontrolling interests	1,587											1,587
Pension liability adjustments, net of income taxes	(12,001)			(12,001)							(12,001)
Share-based compensation expense	57,430			57,430			57,430
Change in redeemable equity	(163,142)			(163,142)			(163,142)
Contributions from stockholders	51,135			51,135			51,135
Distributions to stockholders/non-controlling interest	(840,035)			(839,700)			(839,700)					(335)
Recognition of previously unrealized excess tax benefits related to share-based awards in connection with the adoption of ASU 2016-09	310,771			310,771						310,771
Issuance of common stock pursuant to IPO		$ 2,264,252	$ 349,071		$ 2,264,252	$ 349,071		$ 2,257,002	$ 348,950					$ 2,349	$ 121		$ 4,901
Ending balance (Scenario, Previously Reported) at Dec. 31, 2017	5,495,840			5,494,301			4,642,128			854,824	(10,022)	1,539	2,470			4,901
Ending balance (Restatement Adjustment)																		$ (3,753)	$ (3,753)	$ 23,101	$ (26,854)
Ending balance (Restatement Adjustment, Accounting Standards Update 2014-09)	12,666			12,666						12,666
Ending 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 income (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 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

CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017	Dec. 31, 2016
Cash flows from operating activities:
Net income (loss)	$ (128,949)	$ (76,188)	$ 1,494,764	$ (831,479)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization (including impairments)	642,705	608,724	2,930,571	1,700,306
Impairment of assets included in restructuring charges			0	2,445
Loss (gain) on investments and sale of affiliate interests, net	248,602	(131,658)
Gain on sale of affiliate interests			0	(206)
Equity in net loss of affiliates	10,442	2,757	10,040	1,132
Gain on investments, net	252,576	(131,658)	(237,354)	(141,896)
Loss on derivative contracts, net	(168,352)	71,044	236,330	53,696
Loss on extinguishment of debt and write-off of deferred financing costs	4,705	0	600,240	127,649
Amortization of deferred financing costs and discounts (premiums) on indebtedness	16,950	1,812	31,046	27,799
Settlement loss related to pension plan	606	0	1,845	3,298
Share-based compensation expense	21,623	7,848	57,430	14,368
Deferred income taxes	(65,833)	(52,184)	(2,880,154)	(263,989)
Excess tax benefit on share-based awards			0	(31)
Provision for doubtful accounts	13,500	15,694	74,183	53,249
Change in assets and liabilities, net of effects of acquisitions and dispositions:
Accounts receivable, trade	25,207	34,707	(89,683)	(58,760)
Other receivables	(28,759)	0	(12,835)	9,413
Prepaid expenses and other assets	9,609	(10,113)	(7,426)	56,395
Amounts due from and due to affiliates	(1,465)	(131,564)	(34,326)	41,351
Accounts payable	11,297	147,999	73,888	(11,814)
Accrued liabilities	(224,787)	(253,707)	(241,701)	312,871
Deferred revenue	11,929	11,257	12,310	9,835
Liabilities related to interest rate swap contracts	31,922	(2,342)	(921)	78,823
Net cash provided by operating activities	430,952	244,086	2,018,247	1,184,455
Cash flows from investing activities:
Payment for acquisition, net of cash acquired	(28,940)	(43,608)	(46,703)	(8,988,774)
Net proceeds from sale of affiliate interests	(3,537)	0	0	13,825
Capital expenditures	(257,615)	(257,427)	(951,349)	(625,541)
Proceeds related to sale of equipment, including costs of disposal	965	596	9,743	5,885
Increase in other investments			(4,773)	(4,608)
Settlement of put-call options			(97,410)	0
Additions to other intangible assets	0	(183)	(1,707)	(106)
Net cash used in investing activities	(291,627)	(301,172)	(1,092,199)	(9,599,319)
Cash flows from financing activities:
Proceeds from credit facility debt	1,642,500	225,000	5,593,675	5,510,256
Repayment of credit facility debt	(610,663)	(183,288)	(4,411,581)	(9,133,543)
Proceeds from notes payable to affiliates and related parties			0	1,750,000
Issuance of senior notes	1,000,000	0	0	1,310,000
Proceeds from collateralized indebtedness	0	156,136	838,794	179,388
Repayment of collateralized indebtedness and related derivative contracts	0	(150,084)	(831,059)	(143,102)
Distributions to stockholders		(79,617)	(919,317)	(365,559)
Repayment of senior notes, including premiums and fees	(1,057,019)	0	(1,729,400)	0
Proceeds from notes payable	6,812	0	33,733	0
Excess tax benefit on share-based awards			0	31
Principal payments on capital lease obligations	(3,067)	(4,207)	(15,157)	(18,837)
Additions to deferred financing costs	(19,225)	(1,290)	(8,600)	(203,712)
Proceeds from IPO, net of fees			349,071	0
Contributions from stockholders			1,135	1,246,499
Distributions to noncontrolling interests, net			(335)	0
Other	(859)	0
Net cash provided by (used in) financing activities	958,479	42,267	(1,099,041)	131,421
Net decrease in cash and cash equivalents	1,097,804	(14,819)	(172,993)	(8,283,443)
Cash, cash equivalents and restricted cash at beginning of year	330,100	503,093	503,093	8,786,536
Cash, cash equivalents and restricted cash at end of year	$ 1,427,904	$ 488,274	$ 330,100	$ 503,093

CVC - CONSOLIDATED BALANCE SHEETS $ in Thousands	Dec. 31, 2015 USD ($)
Current Assets:
Goodwill	$ 2,040,402
Stockholders' Equity:
Total stockholders' equity	2,108,080
Cablevision Systems Corporation And Subsidiaries
Current Assets:
Cash and cash equivalents	1,003,279
Restricted cash	1,600
Accounts receivable, trade (less allowance for doubtful accounts of $13,420 and $11,677)	266,383
Prepaid expenses and other current assets (including a prepayment to an affiliate of $19,563 in 2017) (See Note 14)	123,242
Amounts due from affiliates	767
Deferred tax asset	14,596
Investment securities pledged as collateral	455,386
Derivative contracts	10,333
Total current assets	1,875,586
Property, plant and equipment, net of accumulated depreciation of $2,599,579 and $1,039,297	3,017,015
Investment in affiliates	0
Investment securities pledged as collateral	756,596
Derivative contracts	72,075
Other assets (including a prepayment to an affiliate of $6,539 in 2017) (See Note 14)	32,920
Amortizable intangible assets, net of accumulated amortization	36,951
Trademarks and other indefinite-lived intangible assets	7,250
Goodwill	262,345
Deferred financing costs, net of accumulated amortization of $8,150	7,588
Total assets	6,800,174
Current Liabilities:
Accounts payable	453,653
Accrued liabilities:
Interest	119,005
Employee related costs	344,091
Other accrued expenses	169,899
Amounts due to affiliates	29,729
Deferred revenue	55,545
Liabilities under derivative contracts	2,706
Credit facility debt	562,898
Collateralized indebtedness	416,621
Senior notes and debentures	0
Capital lease obligations	20,350
Notes payable	13,267
Total current liabilities	2,187,764
Long-term defined benefit plan obligations	99,228
Other liabilities	165,768
Deferred tax liability	704,835
Credit facility debt	1,951,556
Collateralized indebtedness	774,703
Senior guaranteed notes	0
Senior notes and debentures	5,801,011
Capital lease obligations	25,616
Notes payable	1,277
Total liabilities	11,711,758
Commitments and contingencies
Stockholders' Equity:
Preferred Stock, $.01 par value, 50,000,000 shares authorized, none issued	0
Paid-in capital	792,351
Retained earnings (accumulated deficit)	(4,059,411)
Total stockholders' equity before accumulated other comprehensive Income and non-controlling interest	(3,263,477)
Treasury stock, at cost (81,624,493 CNYG Class A common shares)	(1,610,167)
Accumulated other comprehensive income (loss)	(37,672)
Total stockholders' equity	(4,911,316)
Noncontrolling interest	(268)
Total stockholders' equity	(4,911,584)
Total liabilities and stockholders' equity	6,800,174
Cablevision Systems Corporation And Subsidiaries \| CNYG Class A Common Stock
Stockholders' Equity:
Common Stock	3,042
Cablevision Systems Corporation And Subsidiaries \| CNYG Class B Common Stock
Stockholders' Equity:
Common Stock	541
Cablevision Systems Corporation And Subsidiaries \| RMG Class A Common Stock
Stockholders' Equity:
Common Stock	0
Cablevision Systems Corporation And Subsidiaries \| RMG Class B Common Stock
Stockholders' Equity:
Common Stock	0
Cablevision Systems Corporation And Subsidiaries \| Customer relationships
Current Assets:
Amortizable intangible assets, net of accumulated amortization	11,636
Cablevision Systems Corporation And Subsidiaries \| Amortizable intangible assets
Current Assets:
Amortizable intangible assets, net of accumulated amortization	25,315
Cable television franchises \| Cablevision Systems Corporation And Subsidiaries
Current Assets:
Indefinite-lived cable television franchises	$ 731,848

CVC - CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) $ in Thousands	Dec. 31, 2015 USD ($) $ / shares shares
Cablevision Systems Corporation And Subsidiaries
Current Assets:
Accounts receivable, trade allowance for doubtful accounts \| $	$ 6,039
Property, plant and equipment, accumulated depreciation \| $	9,625,348
Amortizable intangible assets, accumulated amortization \| $	60,310
Deferred financing costs, accumulated amortization \| $	$ 8,150
Stockholders' Equity:
Preferred stock, par value (in dollars per share) \| $ / shares	$ 0.01
Preferred stock, shares authorized (in shares)	50,000,000
Preferred stock, shares issued (in shares)	0
Cablevision Systems Corporation And Subsidiaries \| Customer relationships
Current Assets:
Amortizable intangible assets, accumulated amortization \| $	$ 27,778
Cablevision Systems Corporation And Subsidiaries \| Amortizable intangible assets
Current Assets:
Amortizable intangible assets, accumulated amortization \| $	$ 32,532
CNYG Class A Common Stock \| Cablevision Systems Corporation And Subsidiaries
Stockholders' Equity:
Common stock, par value (in dollars per share) \| $ / shares	$ 0.01
Common stock, shares authorized (in shares)	800,000,000
Common stock, shares issued (in shares)	304,196,703
Common stock, shares outstanding (in shares)	222,572,210
Treasury stock (in shares)	81,624,493
CNYG Class B Common Stock \| Cablevision Systems Corporation And Subsidiaries
Stockholders' Equity:
Common stock, par value (in dollars per share) \| $ / shares	$ 0.01
Common stock, shares authorized (in shares)	320,000,000
Common stock, shares issued (in shares)	54,137,673
Common stock, shares outstanding (in shares)	54,137,673
RMG Class A Common Stock \| Cablevision Systems Corporation And Subsidiaries
Stockholders' Equity:
Common stock, par value (in dollars per share) \| $ / shares	$ 0.01
Common stock, shares authorized (in shares)	600,000,000
Common stock, shares issued (in shares)	0
RMG Class B Common Stock \| Cablevision Systems Corporation And Subsidiaries
Stockholders' Equity:
Common stock, par value (in dollars per share) \| $ / shares	$ 0.01
Common stock, shares authorized (in shares)	160,000,000
Common stock, shares issued (in shares)	0

CVC - CONSOLIDATED STATEMENT OF OPERATIONS - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 20, 2016	Dec. 31, 2015
Cablevision Systems Corporation And Subsidiaries
Revenue (including revenue from affiliates of $2,205 and $1,086, respectively) (See Note 14)	$ 3,137,604	$ 6,545,545
Operating expenses:
Programming and other direct costs (including charges from affiliates of $4,176 and $1,947, respectively) (See Note 14)	1,088,555	2,269,290
Other operating expenses (including charges from affiliates of $106,084 and $18,854, respectively) (See Note 14)	1,136,970	2,546,319
Restructuring and other expense	22,223	16,213
Depreciation and amortization (including impairments)	414,550	865,252
Total operating expenses	2,662,298	5,697,074
Operating income	475,306	848,471
Other income (expense):
Interest expense (including interest expense to affiliates and related parties of $90,405 and $112,712, respectively) (See Note 14)	(287,098)	(585,764)
Interest income	1,590	925
Gain on investments, net	129,990	(30,208)
Loss on equity derivative contracts, net	(36,283)	104,927
Loss on extinguishment of debt and write-off of deferred financing costs (including $513,723 related to affiliates and related parties in 2017) (See Note 14)	0	(1,735)
Other income, net	4,855	6,045
Total other income (expense)	(186,946)	(505,810)
Loss before income taxes	288,360	342,661
Income tax benefit	(124,848)	(154,872)
Income from continuing operations, net of income taxes	163,512	187,789
Income (loss) from discontinued operations, net of income taxes	0	(12,541)
Net income (loss)	163,512	175,248
Net loss (income) attributable to noncontrolling interests	236	201
Net income (loss) attributable to Altice USA, Inc. stockholders	$ 163,748	$ 175,449
Basic income (loss) per share attributable to Cablevision Systems Corporation stockholder(s):
Income from continuing operations, net of income taxes (in dollars per share)	$ 0.60	$ 0.70
Income (loss) from discontinued operations, net of income taxes (in dollars per share)	0.00	(0.05)
Net income (in dollars per share)	$ 0.60	$ 0.65
Basic weighted average common shares (in thousands) (in shares)	272,035,000	269,388,000
Diluted income (loss) per share attributable to Cablevision Systems Corporation stockholder(s):
Income from continuing operations, net of income taxes (in dollars per share)	$ 0.58	$ 0.68
Income (loss) from discontinued operations, net of income taxes (in dollars per share)	0.00	(0.05)
Net income (in dollars per share)	$ 0.58	$ 0.63
Diluted weighted average common shares (in thousands)	280,199,000	276,339,000
Amounts attributable to Cablevision Systems Corporation stockholder(s):
Income from continuing operations, net of income taxes	$ 163,748	$ 187,990
Income (loss) from discontinued operations, net of income taxes	0	(12,541)
Net income (loss) attributable to Altice USA, Inc. stockholders	$ 163,748	$ 175,449
Cash dividends declared per common share (in dollars per share)	$ 0.00	$ 0.45

CVC - CONSOLIDATED STATEMENT OF OPERATIONS (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended	12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Jun. 20, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Revenue from affiliates	$ 125	$ 141		$ 1,100	$ 1,086
Programming and other direct costs from affiliates	1,154	735		4,176	1,947
Related Party Transaction, Other Operating Expense	$ 7,994	$ 7,298		$ 33,140	$ 18,854
Cablevision Systems Corporation And Subsidiaries
Revenue from affiliates			$ 2,088			$ 5,343
Programming and other direct costs from affiliates			84,636			176,909
Related Party Transaction, Other Operating Expense			$ 2,182			$ 5,372

CVC - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 20, 2016	Dec. 31, 2015
Cablevision Systems Corporation And Subsidiaries
Net income	$ 163,512	$ 175,248
Defined benefit pension and postretirement plans (see Note 13):
Unrecognized actuarial gain	68	2,694
Applicable income taxes	(28)	(1,106)
Unrecognized gain (loss) arising during period, net of income taxes	40	1,588
Amortization of actuarial losses, net included in net periodic benefit cost	929	1,224
Applicable income taxes	(388)	(502)
Amortization of actuarial losses, net included in net periodic benefit cost, net of income taxes	541	722
Settlement income included in net periodic benefit cost	1,655	3,822
Applicable income taxes	(679)	(1,569)
Curtailment loss, net of settlement losses included in net periodic benefit cost, net of income taxes	976	2,253
Other comprehensive gain (loss)	1,557	4,563
Comprehensive income (loss)	165,069	179,811
Comprehensive income attributable to noncontrolling interests	236	201
Comprehensive Income (loss) attributable to Altice USA, Inc. stockholders	$ 165,305	$ 180,012

CVC - CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Paid-in Capital	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Income	Total Stockholders' Equity (Deficiency)	Non-controlling Interest	Cablevision Systems Corporation And Subsidiaries	Cablevision Systems Corporation And Subsidiaries Paid-in Capital	Cablevision Systems Corporation And Subsidiaries Retained Earnings (Accumulated Deficit)	Cablevision Systems Corporation And Subsidiaries Treasury Stock	Cablevision Systems Corporation And Subsidiaries Accumulated Other Comprehensive Income	Cablevision Systems Corporation And Subsidiaries Total Stockholders' Equity (Deficiency)	Cablevision Systems Corporation And Subsidiaries Non-controlling Interest	CNYG Class A Common Stock Cablevision Systems Corporation And Subsidiaries Common Stock	CNYG Class B Common Stock Cablevision Systems Corporation And Subsidiaries Common Stock
Beginning balance at Dec. 31, 2014							$ (5,040,690)	$ 823,103	$ (4,234,860)	$ (1,591,021)	$ (42,235)	$ (5,041,469)	$ 779	$ 3,003	$ 541
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to stockholders							175,449		175,449			175,449
Net income attributable to noncontrolling interests							(146)						(146)
Pension and postretirement plan liability adjustments, net of income taxes							4,563				4,563	4,563
Proceeds from exercise of options and issuance of restricted shares							18,687	18,648				18,687		39
Recognition of equity-based stock compensation arrangements							60,817	60,817				60,817
Treasury stock acquired from forfeiture and acquisition of restricted shares							(19,141)	5		(19,146)		(19,141)
Excess tax benefit on share-based awards							5,694	5,694				5,694
Dividends on CNYG Class A and CNYG Class B common stock							(124,752)	(124,752)				(124,752)
Adjustments to/Contributions from noncontrolling interests							7,935	8,836				8,836	(901)
Ending balance at Dec. 31, 2015	$ 2,108,080	$ 2,252,028	$ (143,948)	$ 0	$ 2,108,080	$ 0	(4,911,584)	792,351	(4,059,411)	(1,610,167)	(37,672)	(4,911,316)	(268)	3,042	541
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to stockholders							163,748		163,748			163,748
Net income attributable to noncontrolling interests							(236)						(236)
Pension and postretirement plan liability adjustments, net of income taxes							1,557				1,557	1,557
Proceeds from exercise of options and issuance of restricted shares							14,559	14,544				14,559		15
Recognition of equity-based stock compensation arrangements							24,997	24,997				24,997
Treasury stock acquired from forfeiture and acquisition of restricted shares							(41,469)	1		(41,470)		(41,469)
Tax withholding associated with shares issued for equity-based compensation							(6,034)	(6,030)				(6,034)		(4)
Dividends on CNYG Class A and CNYG Class B common stock							(82)	(82)				(82)
Adjustments to/Contributions from noncontrolling interests							240						240
Ending balance at Jun. 20, 2016							(4,754,140)	825,945	(3,895,663)	(1,651,637)	(36,115)	(4,753,876)	(264)	3,053	541
Beginning balance at Dec. 31, 2015	2,108,080	2,252,028	(143,948)	0	2,108,080	0	$ (4,911,584)	$ 792,351	$ (4,059,411)	$ (1,610,167)	$ (37,672)	$ (4,911,316)	$ (268)	$ 3,042	$ 541
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to stockholders	(832,030)		(832,030)		(832,030)
Recognition of equity-based stock compensation arrangements	14,368	14,368			14,368
Ending balance at Dec. 31, 2016	2,042,508	3,003,554	(963,312)	1,979	2,042,221	287
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to stockholders	1,493,177		1,493,177		1,493,177
Recognition of equity-based stock compensation arrangements	57,430	57,430			57,430
Ending balance at Dec. 31, 2017	5,504,753	4,665,229	840,636	(10,022)	5,503,214	1,539
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to stockholders	(128,951)		(128,951)		(128,951)
Recognition of equity-based stock compensation arrangements	21,623	21,623			21,623
Ending balance at Mar. 31, 2018	$ 5,396,986	$ 4,682,646	$ 713,848	$ (8,420)	$ 5,395,445	$ 1,541

CVC - CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 20, 2016	Dec. 31, 2015
Cablevision Systems Corporation And Subsidiaries
Cash flows from operating activities:
Net income	$ 163,512	$ 175,248
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Loss (income) from discontinued operations, net of income taxes	0	12,541
Depreciation and amortization (including impairments)	414,550	865,252
Loss (gain) on investments, net	(129,990)	30,208
Loss (gain) on equity derivative contracts, net	36,283	(104,927)
Loss on extinguishment of debt and write-off of deferred financing costs	0	1,735
Amortization of deferred financing costs and discounts (premiums) on indebtedness	11,673	23,764
Share-based compensation expense	24,778	60,321
Settlement loss and amortization of actuarial losses related to pension and postretirement plans	2,584	5,046
Deferred income taxes	116,150	133,396
Provision for doubtful accounts	13,240	35,802
Excess tax benefit on share-based awards	(82)	(5,694)
Change in assets and liabilities, net of effects of acquisitions and dispositions:
Accounts receivable, trade	(18,162)	(24,760)
Prepaid expenses and other assets	(844)	38,860
Amounts due from and due to affiliates	(5,082)	1,043
Accounts payable	36,147	6,896
Accrued liabilities	(160,937)	1,200
Deferred revenue	(9,726)	2,156
Net cash provided by operating activities	494,094	1,258,087
Cash flows from investing activities:
Capital expenditures	(330,131)	(816,396)
Proceeds related to sale of equipment, including costs of disposal	1,106	4,407
Decrease (increase) in other investments	610	(7,779)
Additions to other intangible assets	(1,709)	(8,035)
Net cash used in investing activities	(330,124)	(827,803)
Cash flows from financing activities:
Repayment of credit facility debt	(14,953)	(260,321)
Proceeds from collateralized indebtedness	337,149	774,703
Repayment of collateralized indebtedness and related derivative contracts	(281,594)	(639,237)
Repayment of notes payable	(1,291)	(2,458)
Proceeds from stock option exercises	14,411	18,727
Tax withholding associated with shares issued for equity-based awards	(6,034)
Dividend distributions to common stockholders	(4,066)	(125,170)
Principal payments on capital lease obligations	(11,552)	(20,250)
Deemed repurchases of restricted stock	(41,469)	(19,141)
Additions to deferred financing costs		(250)
Payment for purchase of noncontrolling interest		(8,300)
Contributions from noncontrolling interests, net	240
Distributions to noncontrolling interests, net		(901)
Excess tax benefit on share-based awards	82	5,694
Net cash provided by (used in) financing activities	(9,077)	(276,904)
Net increase in cash and cash equivalents from continuing operations	154,893	153,380
Cash flows of discontinued operations:
Net cash used in operating activities	(21,000)	(484)
Net cash provided by (used in) investing activities		(30)
Net increase (decrease) in cash and cash equivalents from discontinued operations	(21,000)	(514)
Cash and cash equivalents at beginning of period	1,003,279	850,413
Cash and cash equivalents at end of year	$ 1,137,172	$ 1,003,279

DESCRIPTION OF BUSINESS AND RELATED MATTERS

3 Months Ended

12 Months Ended

Mar. 31, 2018

Dec. 31, 2017

Organization, Consolidation and Presentation of Financial Statements [Abstract]

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.

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 December 31, 2017, 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 had no operations of its own other than the issuance of debt prior to the contribution of Cequel on June 9, 2016 by Altice N.V. The results of operations of Cequel for the year ended December 31, 2016 have been included in the results of operations of Altice USA for the same periods, as Cequel was under common control with Altice USA.

Altice USA acquired Cablevision Systems Corporation ("Cablevision" or "Optimum") on June 21, 2016 (see discussion below) and the results of operations of Cablevision are included with the results of operations of Cequel for the year ended December 31, 2017. The year ended December 31, 2016 operating results include the operating results of Cablevision from the date of acquisition, June 21, 2016.

The accompanying combined consolidated financial statements ("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. All significant inter-company accounts and transactions have been eliminated in consolidation.

The accompanying consolidated financial statements also 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 20 for further details of the impact on the Company's historical financial statements.

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.

Acquisition of Altice Technical Services US Corp

ATS was formed to provide network construction and maintenance services and commercial and residential installations, disconnections, and maintenance. In the second quarter of 2017, the Company entered into an Independent Contractor Agreement with ATS that governs the terms of the services described above. The Company believes the services it receives from ATS will be of higher quality and at a lower cost than the Company could achieve without ATS, including for the construction of our new fiber-to-the home ("FTTH") network. The Company also entered into a Transition Services Agreement for the use of the Company's resources to provide various overhead functions to ATS, including accounting, legal and human resources and for the use of certain facilities, vehicles and technician tools during a transitional period that generally ended on December 31, 2017, although the term can be extended on a service-by-service basis. The Transition Services Agreement requires ATS to reimburse the Company for its cost to provide such services.

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 20 for the impact of the ATS Acquisition on the Company's consolidated balance sheet and statement of operations as of and for the year ended December 31, 2017. In connection with the ATS Acquisition, the Company recorded goodwill of $23,101, representing the amount previously transferred to ATS.

Initial Public Offering

In June 2017, the Company completed its initial public offering ("IPO") of 71,724,139 shares of its Class A common stock (12,068,966 shares sold by the Company and 59,655,173 shares sold by existing stockholders) at a price to the public of $30.00 per share, including the underwriters full exercise of their option to purchase 7,781,110 shares to cover overallotments. At the date of the IPO, Altice N.V. owned approximately 70.2% of the Company's issued and outstanding common stock, which represented approximately 98.2% of the voting power of the Company's outstanding 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".

In connection with the sale of its Class A common stock, the Company received proceeds of approximately $362,069, before deducting the underwriting discount and expenses directly related to the issuance of the securities of $12,998. The Company did not receive any proceeds from the sale of shares by the selling stockholders. In July 2017, the Company used approximately $350,120 of the proceeds to fund the redemption of $315,779 principal amount of 10.875% senior notes that mature in 2025 issued by CSC Holdings, an indirect wholly-owned subsidiary of the Company, and the related call premium of approximately $34,341.

The following organizational transactions were consummated prior to the IPO:


•	the Company amended and restated its certificate of incorporation to, among other things, provide for Class A common stock, Class B common stock and Class C common stock;


•	BC Partners LLP ("BCP") and Canada Pension Plan Investment Board (‘‘CPPIB and together with BCP, the‘‘Co-Investors’’) and Uppernext S.C.S.p. ("Uppernext"), an entity controlled by Mr. Patrick Drahi (founder and controlling stockholder of Altice N.V.), exchanged their indirect ownership interest in the Company for shares of the Company’s common stock;


•	Neptune Management LP (‘‘Management LP’’) redeemed its Class B units for shares of the Company’s common stock that it received from the redemption of its Class B units in Neptune Holding US LP;


•	the Company converted $525,000 aggregate principal amount of notes issued by the Company to the Co-Investors (together with accrued and unpaid interest and applicable premium) into shares of the Company’s common stock at the IPO price (see Note 9 for further details);


•	$1,225,000 aggregate principal amount of notes issued by the Company to a subsidiary of Altice N.V. (together with accrued and unpaid interest and applicable premium) was transferred to CVC 3 B.V., an indirect subsidiary of Altice N.V. ("CVC 3") and then the Company converted such notes into shares of the Company’s common stock at the IPO price (see Note 9 for further details);


•	the Co-Investors, Neptune Holding US LP, A4 S.A. (an entity controlled by the family of Mr. Drahi), and former Class B unitholders of Management LP (including Uppernext) exchanged shares of the Company’s common stock for new shares of the Company’s Class A common stock; and


•	CVC 3 and A4 S.A. exchanged shares of the Company’s common stock for new shares of the Company’s Class B common stock.

Acquisition of Cablevision Systems Corporation

On June 21, 2016 (the "Cablevision Acquisition Date"), pursuant to the Agreement and Plan of Merger (the "Merger Agreement"), dated as of September 16, 2015, by and among Cablevision, Altice N.V., Neptune Merger Sub Corp., a wholly-owned subsidiary of Altice N.V. ("Merger Sub"), Merger Sub merged with and into Cablevision, with Cablevision surviving the merger (the "Cablevision Acquisition").

In connection with the Cablevision Acquisition, each outstanding share of the Cablevision NY Group Class A common stock, par value $0.01 per share ("CNYG Class A Shares"), and Cablevision NY Group Class B common stock, par value $0.01 per share ("CNYG Class B Shares", and together with the CNYG Class A Shares, the "Shares"), and together with the Cablevision NY Group Class A common stock, the "Shares" other than Shares owned by Cablevision, Altice N.V. or any of their respective wholly-owned subsidiaries, in each case not held on behalf of third parties in a fiduciary capacity, received $34.90 in cash without interest, less applicable tax withholdings (the "Cablevision Acquisition Consideration").

Pursuant to an agreement, dated December 21, 2015, by and among CVC 2 B.V., CIE Management IX Limited, for and on behalf of the limited partnerships BC European Capital IX-1 through 11 and Canada Pension Plan Investment Board, certain affiliates of BCP and CPPIB (the "Co-Investors") funded approximately $1,000,000 toward the payment of the aggregate Per Share Cablevision Acquisition Consideration, and indirectly acquired approximately 30% of the Shares of Cablevision.

Also in connection with the Cablevision Acquisition, outstanding equity-based awards granted under Cablevision’s equity plans were cancelled and converted into cash based upon the $34.90 per Share Cablevision Acquisition Consideration in accordance with the original terms of the awards. The total consideration for the outstanding CNYG Class A Shares, the outstanding CNYG Class B Shares, and the equity-based awards amounted to $9,958,323.

In connection with the Cablevision Acquisition, in October 2015, Neptune Finco Corp. ("Finco"), an indirect wholly-owned subsidiary of Altice N.V. formed to complete the financing described herein and the merger with CSC Holdings, LLC ("CSC Holdings"), a wholly-owned subsidiary of Cablevision, borrowed an aggregate principal amount of $3,800,000 under a term loan facility (the "Term Credit Facility") and entered into revolving loan commitments in an aggregate principal amount of $2,000,000 (the "Revolving Credit Facility" and, together with the Term Credit Facility, the "Credit Facilities").

Finco also issued $1,800,000 aggregate principal amount of 10.125% senior notes due 2023 (the "2023 Notes"), $2,000,000 aggregate principal amount of 10.875% senior notes due 2025 (the "2025 Notes"), and $1,000,000 aggregate principal amount of 6.625% senior guaranteed notes due 2025 (the "2025 Guaranteed Notes") (collectively the "Cablevision Acquisition Notes").

On June 21, 2016, immediately following the Cablevision Acquisition, Finco merged with and into CSC Holdings, with CSC Holdings surviving the merger (the "CSC Holdings Merger"), and the Cablevision Acquisition Notes and the Credit Facilities became obligations of CSC Holdings.

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 $875,000 bore interest at 11%. See Note 9 for a discussion regarding the conversion of these notes payable to shares of the Company's common stock prior to the consummation of the IPO.

The Cablevision Acquisition was accounted for as a business combination in accordance with ASC Topic 805. Accordingly, the Company stepped up 100% of the assets and liabilities assumed to their fair value at the Cablevision Acquisition Date. See Note 3 for further details.

Acquisition of Cequel Corporation

On December 21, 2015, Altice N.V., though a subsidiary, acquired approximately 70% of the total outstanding equity interests in Cequel (the "Cequel Acquisition") from the direct and indirect stockholders of Cequel Corporation (the "Sellers"). The consideration for the acquired equity interests, which was based on a total equity valuation for 100% of the capital and voting rights of Cequel, was $3,973,528, including $2,797,928 of cash consideration, $675,600 of retained equity held by entities affiliated with BC Partners and CPPIB and $500,000 funded by the issuance by an affiliate of Altice N.V. of a senior vendor note that was subscribed by entities affiliated with BC Partners and CPPIB. Following the closing of the Cequel Acquisition, entities affiliated with BC Partners and CPPIB retained a 30% equity interest in a parent entity of the Company. In addition, the carried interest plans of the stockholders were cashed out whereby payments were made to participants in such carried interest plans, including certain officers and directors of Cequel.

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;


•	This 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.

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

3 Months Ended

12 Months Ended

Mar. 31, 2018

Dec. 31, 2017

Accounting Policies [Abstract]

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.

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Summary of Significant Accounting Policies

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 years ended December 31, 2017 and 2016, the amount of franchise fees and certain other taxes and fees included as a component of revenue aggregated $259,075 and $154,732, 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:



	December 31,
	2017		2016
Contract assets (a)	$	24,329	$	24,329
Deferred revenue (b)	117,679		103,996


(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.

Multiple-Element Transactions

In the normal course of business, the Company may enter into multiple-element transactions where it is simultaneously both a customer and a vendor with the same counterparty or in which it purchases multiple products and/or services, or settles outstanding items contemporaneously with the purchase of a product or service, from a single counterparty. The Company's policy for accounting for each transaction negotiated contemporaneously is to record each deliverable of the transaction based on its best estimate of selling price in a manner consistent with that used to determine the price to sell each deliverable on a standalone basis. In determining the fair value of the respective deliverable, the Company will utilize quoted market prices (as available), historical transactions or comparable transactions.

Technical and Operating Expenses

Costs of revenue related to sales of services are classified as "programming and other direct costs" in the accompanying consolidated statements of operations.

Programming Costs

Programming expenses related to the Company's pay television service represent fees paid to programming distributors to license the programming distributed to customers. This programming is acquired generally under multi-year distribution agreements, with rates usually based on the number of customers that receive the programming. If there are periods when an existing distribution agreement has expired and the parties have not finalized negotiations of either a renewal of that agreement or a new agreement for certain periods of time, the Company continues to carry and pay for these services until execution of definitive replacement agreements or renewals. The amount of programming expense recorded during the interim period is based on the Company's estimates of the ultimate contractual agreement expected to be reached, which is based on several factors, including previous contractual rates, customary rate increases and the current status of negotiations. Such estimates are adjusted as negotiations progress until new programming terms are finalized.

In addition, the Company has received, or may receive, incentives from programming distributors for carriage of the distributors' programming. The Company generally recognizes these incentives as a reduction of programming costs in "programming and other direct costs", generally over the term of the distribution agreement.

Advertising Expenses

Advertising costs are charged to expense when incurred and are reflected in "other operating expenses" in the accompanying consolidated statements of operations. Advertising costs amounted to $224,120 and $135,513 for the years ended December 31, 2017 and 2016, respectively.

Share-Based Compensation

Share-based compensation expense is based on the fair value of the portion of share-based payment awards that are ultimately expected to vest. Share-based compensation cost relates to awards of units in a carried unit plan and options.

For carried interest units, the Company measures share-based compensation cost at the grant date fair value and recognizes the expense over the requisite service period or when it is probable any related performance condition will be met. For carried interest units with graded vesting requirement, compensation cost is recognized on an accelerated method under the graded vesting method over the requisite service period for the carried interest unit. Carried interest units that vest entirely at the end of the vesting requirement are expensed on a straight-line basis.

The Company estimated the fair value of carried interest units using an option pricing model. Key inputs that were used in applying the option pricing method were total equity value, equity volatility, risk free rate and time to liquidity event. The estimate of total equity value was determined using a combination of the income approach, which incorporated cash flow projections that were discounted at an appropriate rate, and the market approach, which involved applying a market multiple to the Company’s projected operating results. The Company estimated volatility based on the historical equity volatility of comparable publicly-traded companies. Subsequent to the IPO, such subjective valuations and estimates were no longer necessary as the Company relied on the market price of the Company’s common stock to determine the fair value of share-based compensation awards. See Note 13 to the consolidated financial statements for additional information about our share-based compensation.

For stock option awards, the Company recognizes compensation expense based on the estimated grant date fair value using the Black-Scholes valuation model. For options not subject to performance based vesting conditions, the Company recognizes the compensation expense using a straight-line amortization method.

Income Taxes

The Company's provision for income taxes is based on current period income, changes in deferred tax assets and liabilities and changes in estimates with regard to uncertain tax positions. Deferred tax assets are subject to an ongoing assessment of realizability. The Company provides deferred taxes for the outside basis difference of its investment in partnerships.

Cash and Cash Equivalents

The Company's cash investments are placed with money market funds and financial institutions that are investment grade as rated by Standard & Poor's and Moody's Investors Service. The Company selects money market funds that predominantly invest in marketable, direct obligations issued or guaranteed by the United States government or its agencies, commercial paper, fully collateralized repurchase agreements, certificates of deposit, and time deposits.

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.

Accounts Receivable

Accounts receivable are recorded at net realizable value. The Company periodically assesses the adequacy of valuation allowances for uncollectible accounts receivable by evaluating the collectability of outstanding receivables and general factors such as historical collection experience, length of time individual receivables are past due, and the economic and competitive environment.

Investments

Investment securities and investment securities pledged as collateral are classified as trading securities and are stated at fair value with realized and unrealized holding gains and losses included in net income.

Long-Lived Assets and Amortizable Intangible Assets

Property, plant and equipment, including construction materials, are carried at cost, and include all direct costs and certain indirect costs associated with the construction of cable systems, and the costs of new equipment installations. Equipment under capital leases is recorded at the present value of the total minimum lease payments. Depreciation on equipment is calculated on the straight-line basis over the estimated useful lives of the assets or, with respect to equipment under capital leases and leasehold improvements, amortized over the shorter of the lease term or the assets' useful lives and reported in depreciation and amortization (including impairments) in the consolidated statements of operations.

The Company capitalizes certain internal and external costs incurred to acquire or develop internal-use software. Capitalized software costs are amortized over the estimated useful life of the software and reported in depreciation and amortization.

Customer relationships, trade names and other intangibles established in connection with acquisitions that are finite-lived are amortized in a manner that reflects the pattern in which the projected net cash inflows to the Company are expected to occur, such as the sum of the years' digits method, or when such pattern does not exist, using the straight-line basis over their respective estimated useful lives.

The Company reviews its long-lived assets (property, plant and equipment, and intangible assets subject to amortization that arose from acquisitions) for impairment whenever events or circumstances indicate that the carrying amount of an asset may not be recoverable. If the sum of the expected cash flows, undiscounted and without interest, is less than the carrying amount of the asset, an impairment loss is recognized as the amount by which the carrying amount of the asset exceeds its fair value.

Goodwill and Indefinite-Lived Intangible Assets

Goodwill and the value of franchises acquired in purchase business combinations which have indefinite useful lives are not amortized. Rather, such assets are tested for impairment annually or upon the occurrence of a triggering event.

The Company assesses qualitative factors for its reporting units that carry goodwill. If the qualitative assessment results in a conclusion that it is more likely than not that the fair value of a reporting unit exceeds the carrying value, then no further testing is performed for that reporting unit.

When the qualitative assessment is not used, or if the qualitative assessment is not conclusive and it is necessary to calculate the fair value of a reporting unit, then the impairment analysis for goodwill is performed at the reporting unit level using a two-step approach. The first step of the goodwill impairment test is used to identify potential impairment by comparing the fair value of the reporting unit with its carrying amount, including goodwill utilizing an enterprise-value based premise approach. If the carrying amount of the reporting unit exceeds its fair value, the second step of the goodwill impairment test is performed to measure the amount of goodwill impairment loss, if any. The second step of the goodwill impairment test compares the implied fair value of the reporting unit's goodwill with the carrying amount of that goodwill. If the carrying amount of the reporting unit's goodwill exceeds the implied fair value of that goodwill, an impairment loss is recognized in an amount equal to that excess. The implied fair value of goodwill is determined in the same manner as the amount of goodwill which would be recognized in a business combination.

The Company assesses qualitative factors to determine whether it is necessary to perform the one-step quantitative identifiable indefinite-lived intangible assets impairment test. This quantitative test is required only if the Company concludes that it is more likely than not that a unit of accounting’s fair value is less than its carrying amount. When the qualitative assessment is not used, or if the qualitative assessment is not conclusive, the impairment test for other intangible assets not subject to amortization requires a comparison of the fair value of the intangible asset with its carrying value. If the carrying value of the indefinite-lived intangible asset exceeds its fair value, an impairment loss is recognized in an amount equal to that excess.

Deferred Financing Costs

Deferred financing costs are being amortized to interest expense using the effective interest method over the terms of the related debt.

Derivative Financial Instruments

The Company accounts for derivative financial instruments as either assets or liabilities measured at fair value. The Company uses derivative instruments to manage its exposure to market risks from changes in certain equity prices and interest rates and does not hold or issue derivative instruments for speculative or trading purposes. These derivative instruments are not designated as hedges, and changes in the fair values of these derivatives are recognized in the statements of operations as gains (losses) on derivative contracts.

Commitments and Contingencies

Liabilities for loss contingencies arising from claims, assessments, litigation, fines and penalties and other sources are recorded when the Company believes it is probable that a liability has been incurred and the amount of the contingency can be reasonably estimated.

Recently Adopted Accounting Pronouncements

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 20 for information on the impact of the adoption of ASC 606.

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 years ended December 31, 2017 and 2016 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 (Note 17 of the consolidated financial statements) 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 20 for information on the impact of the adoption of ASU No. 2017-07.

In March 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2016-09, Compensation—Stock Compensation: Improvements to Employee Share-Based Payment Accounting, which provides simplification of income tax accounting for share-based payment awards. The new guidance became effective for the Company on January 1, 2017. Amendments related to the timing of when excess tax benefits are recognized, minimum statutory withholding requirements, forfeitures, and intrinsic value were applied using the modified retrospective transition method. Amendments requiring recognition of excess tax benefits and tax deficiencies in the income statement and the practical expedient for estimating expected term were applied prospectively. The Company elected to apply the amendments related to the presentation of excess tax benefits on the statement of cash flows using the prospective transition method. In connection with the adoption on January 1, 2017, a deferred tax asset of approximately $310,771 for previously unrealized excess tax benefits was recognized with the offset recorded to accumulated deficit.

Recently Issued But Not Yet 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 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.

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 is effective for the Company on January 1, 2018 and will be applied prospectively.

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 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 new guidance is effective for the Company on January 1, 2018 and will be applied prospectively.

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 new guidance is effective for the Company on January 1, 2018 and will be applied retrospectively. The Company does not believe that the adoption of ASU No. 2016-15 will have a material effect on its consolidated statements of cash flows.

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 permitted and will be applied using the modified retrospective method. The Company has not yet completed the evaluation of the effect that ASU No. 2016-02 will have on its consolidated financial statements.

In 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 is effective for the Company on January 1, 2018. The Company does expect the adoption of ASU No. 2016-01 to have any effect on its consolidated financial statements.

Common Stock of Altice USA

At December 31, 2017, the Company had 246,982,292 shares of Class A common stock and 490,086,674 shares of Class B common stock, with a par value of $0.01, issued and outstanding. Each holder of Class A common stock has one vote per share while holders of Class B common stock have twenty-five votes per share. Class B shares can be converted to Class A common stock at anytime with a conversion ratio of one Class A common share for one Class B common share.

At December 31, 2016, the Company had 100 shares of common stock, with a par value of $0.01, issued and outstanding.

Dividends and Distributions

The Company may pay dividends on its capital stock only from net profits and surplus as determined under Delaware law. If dividends are paid on the Altice USA common stock, holders of the Altice USA Class A common stock and Altice USA Class B common stock are entitled to receive dividends, and other distributions in cash, stock or property, equally on a per share basis, except that stock dividends with respect to Altice USA Class A common stock may be paid only with shares of Altice USA Class A common stock and stock dividends with respect to Altice USA Class B common stock may be paid only with shares of Altice USA Class B common stock.

The Company's indentures restrict the amount of dividends and distributions in respect of any equity interest that can be made.

Prior to the Company's IPO, the Company declared and paid cash distributions to stockholders aggregating $839,700 in the second quarter of 2017. In 2016, the Company declared cash distributions of $445,176 of which $365,559 were paid in 2016 and $79,617 were paid in the first quarter of 2017.

Net Income (Loss) Per Share

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 income (loss) per share reflect the retroactive impact of the organizational transactions, discussed in Note 1, that occurred prior to the Company's IPO.

The following table presents a reconciliation of weighted average shares used in the calculation of the basic and diluted net income per share attributable to Altice USA stockholders for the year ended December 31, 2017:



Basic weighted average shares outstanding	696,055,000

Effect of dilution:
Stock options	—
Diluted weighted average shares outstanding	696,055,000

Anti-dilutive shares totaling approximately 14,000 shares, have been excluded from diluted weighted average shares outstanding for the year ended December 31, 2017.

Concentrations of Credit Risk

Financial instruments that may potentially subject the Company to a concentration of credit risk consist primarily of cash and cash equivalents and trade account receivables. The Company monitors the financial institutions and money market funds where it invests its cash and cash equivalents with diversification among counterparties to mitigate exposure to any single financial institution. The Company's emphasis is primarily on safety of principal and liquidity and secondarily on maximizing the yield on its investments. Management believes that no significant concentration of credit risk exists with respect to its cash and cash equivalents because of its assessment of the creditworthiness and financial viability of the respective financial institutions.

The Company did not have a single customer that represented 10% or more of its consolidated revenues for the years ended December 31, 2017 and 2016, or 10% or more of its consolidated net trade receivables at December 31, 2017 and 2016, respectively.

Use of Estimates in Preparation of Financial Statements

The preparation of financial statements in conformity with U.S. generally accepted accounting principles ("GAAP") requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. See Note 11 for a discussion of fair value estimates.

Reclassifications

Certain reclassifications have been made to the 2016 financial statements to conform to the 2017 presentation.

BUSINESS COMBINATIONS

12 Months Ended

Dec. 31, 2017

Business Combinations [Abstract]

BUSINESS COMBINATIONS

ATS Acquisition

As the ATS acquisition discussed in Note 1 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 20 for the impact of the ATS Acquisition on the Company's consolidated balance sheet and statement of operations as of and for the year ended December 31, 2017.

Cablevision Acquisition

As discussed in Note 1, the Company completed the Cablevision Acquisition on June 21, 2016. The acquisition was accounted for as a business combination in accordance with ASC Topic 805. Accordingly, the Company recorded the fair value of the assets and liabilities assumed at the date of acquisition.

The following table provides the allocation of the total purchase price of $9,958,323 to the identifiable tangible and intangible assets and liabilities of Cablevision based on their respective fair values. The remaining useful lives represent the period over which acquired tangible and intangible assets with a finite life are being depreciated or amortized.



	Fair Values			Estimated Useful Lives

Current assets	$	1,923,071
Accounts receivable	271,305
Property, plant and equipment	4,864,621			2-18 years
Goodwill	5,842,172
Indefinite-lived cable television franchises	8,113,575			Indefinite-lived
Customer relationships	4,850,000			8 to 18 years
Trade names (a)	1,010,000			12 years
Amortizable intangible assets	23,296			1-15 years
Other non-current assets	748,998
Current liabilities	(2,311,201		)
Long-term debt	(8,355,386		)
Deferred income taxes.	(6,832,773		)
Other non-current liabilities	(189,355		)
Total	$	9,958,323


(a)	See Note 8 for additional information regarding a change in the remaining estimated useful lives of the Company's trade names.

The fair value of customer relationships and cable television franchises were valued using derivations of the "income" approach. The future expected earnings from these assets were discounted to their present value equivalent.

Trade names were valued using the relief from royalty method, which is based on the present value of the royalty payments avoided as a result of the company owning the intangible asset.

The basis for the valuation methods was the Company’s projections. These projections were based on management’s assumptions including among others, penetration rates for pay television, broadband, and telephony; revenue growth rates; operating margins; and capital expenditures. The assumptions are derived based on the Company’s and its peers’ historical operating performance adjusted for current and expected competitive and economic factors surrounding the cable industry. The discount rates used in the analysis are intended to reflect the risk inherent in the projected future cash flows generated by the respective intangible asset. The value is highly dependent on the achievement of the future financial results contemplated in the projections. The estimates and assumptions made in the valuation are inherently subject to significant uncertainties, many of which are beyond the Company's control, and there is no assurance that these results can be achieved. The primary assumptions for which there is a reasonable possibility of the occurrence of a variation that would have significantly affected the value include the assumptions regarding revenue growth, programming expense growth rates, the amount and timing of capital expenditures and the discount rate utilized.

In establishing fair value for the vast majority of the acquired property, plant and equipment, the cost approach was utilized. The cost approach considers the amount required to replace an asset by constructing or purchasing a new asset with similar utility, then adjusts the value in consideration of physical depreciation, and functional and economic obsolescence as of the appraisal date. The cost approach relies on management’s assumptions regarding current material and labor costs required to rebuild and repurchase significant components of property, plant and equipment along with assumptions regarding the age and estimated useful lives of property, plant and equipment.

The estimates of expected useful lives take into consideration the effects of contractual relationships, customer attrition, eventual development of new technologies and market competition.

Long-term debt assumed was valued using quoted market prices (Level 2). The carrying value of most other assets and liabilities approximated fair value as of the acquisition date.

As a result of applying business combination accounting, the Company recorded goodwill, which represented the excess of organization value over amounts assigned to the other identifiable tangible and intangible assets arising from expectations of future operational performance and cash generation.

The following table presents the unaudited pro forma revenue and net loss for the period presented as if the Cablevision Acquisition had occurred on January 1, 2016:



	Year Ended December 31, 2016
Revenue	$	9,154,816
Net loss	$	(721,257	)

The pro forma results presented above include the impact of additional amortization expense related to the identifiable intangible assets recorded in connection with the Cablevision Acquisition, additional depreciation expense related to the fair value adjustment to property, plant and equipment and the incremental interest resulting from the issuance of debt to fund the Cablevision Acquisition, net of the reversal of interest and amortization of deferred financing costs related to credit facilities that were repaid on the date of the Cablevision Acquisition and the accretion/amortization of fair value adjustments associated with the long-term debt acquired.

Other Acquisitions

In connection with certain acquisitions completed in the first and fourth quarters of 2017, the Company recorded amortizable intangibles of $45,000 relating to customer relationships and $9,400 relating to other amortizable intangibles. The Company recorded goodwill of $23,948, which represents the excess of the estimated purchase price of approximately $80,000 (based on current probability of contingent consideration) over the net book value of assets acquired. These values are based on preliminary fair value information currently available, which is subject to change within the measurement period (up to one year from the acquisition date). The acquired entities are included in the Cablevision segment.

SUPPLEMENTAL CASH FLOW INFORMATION

3 Months Ended

12 Months Ended

Mar. 31, 2018

Dec. 31, 2017

Supplemental Cash Flow Elements [Abstract]

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

SUPPLEMENTAL CASH FLOW INFORMATION

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



	Years Ended December 31,
	2017		2016
Non-Cash Investing and Financing Activities:
Continuing Operations:
Conversion of notes payable to affiliates and related parties of $1,750,000 (together with accrued and unpaid interest and applicable premium) to common stock (See Note 9)	$	2,264,252	$	—
Property and equipment accrued but unpaid	171,604		155,653
Distributions declared but not paid	—		79,617
Leasehold improvements paid by landlord	3,998		—
Notes payable to vendor	40,131		12,449
Capital lease obligations	9,385		—
Deferred financing costs accrued but unpaid	—		2,570
Supplemental Data:
Cash interest paid	1,765,126		1,192,370
Income taxes paid, net	29,006		1,538

RESTRUCTURING AND OTHER EXPENSE

3 Months Ended

12 Months Ended

Mar. 31, 2018

Dec. 31, 2017

Restructuring and Related Activities [Abstract]

RESTRUCTURING 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.

RESTRUCTURING 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:
	Severance and Other Employee Related Costs			Facility Realignment and Other Costs			Total
Restructuring charges incurred in 2016	$	215,420		$	11,157		$	226,577
Payments and other	(113,301		)	(2,760		)	(116,061		)
Accrual balance at December 31, 2016	102,119			8,397			110,516
Restructuring charges	142,679			7,243			149,922
Payments and other	(131,324		)	(6,014		)	(137,338		)
Accrual balance at December 31, 2017	$	113,474		$	9,626		$	123,100

Cumulative costs to date relating to the 2016 Restructuring Plan amounted to $309,297 and $67,202 for our Cablevision segment and Cequel segment, respectively.

Transaction Costs

For the year ended December 31, 2017, the Company incurred transaction costs of $2,479 related to the acquisition of a business during the first quarter of 2017 and other transactions. For the year ended December 31, 2016, the Company incurred transaction costs of $13,845, related to the acquisitions of Cablevision and Cequel.

PROPERTY, PLANT AND EQUIPMENT

12 Months Ended

Dec. 31, 2017

Property, Plant and Equipment [Abstract]

PROPERTY, PLANT AND EQUIPMENT

Costs incurred in the construction of the Company's cable systems, including line extensions to, and upgrade of, the Company's hybrid fiber/coaxial infrastructure, initial placement of the feeder cable to connect a customer that had not been previously connected, and headend facilities are capitalized. These costs consist of materials, subcontractor labor, direct consulting fees, and internal labor and related costs associated with the construction activities. The internal costs that are capitalized consist of salaries and benefits of the Company's employees and the portion of facility costs, including rent, taxes, insurance and utilities, that supports the construction activities. These costs are depreciated over the estimated life of the plant (10 to 25 years) and headend facilities (4 to 25 years). Costs of operating the plant and the technical facilities, including repairs and maintenance, are expensed as incurred.

Installation costs associated with the initial deployment of new customer premise equipment (“CPE”) necessary to provide pay television, broadband or telephony services are also capitalized. These costs include materials, subcontractor labor, internal labor, and other related costs associated with the connection activities. The departmental activities supporting the connection process are tracked through specific metrics, and the portion of departmental costs that is capitalized is determined through a time weighted activity allocation of costs incurred based on time studies used to estimate the average time spent on each activity. These installation costs are amortized over the estimated useful lives of the CPE necessary to provide pay television, broadband or telephony services. In circumstances where CPE tracking is not available, the Company estimates the amount of capitalized installation costs based on whether or not the business or residence had been previously connected to the network. These installation costs are depreciated over their estimated useful life of 3-5 years. The portion of departmental costs related to disconnecting services and removing CPE from a customer, costs related to connecting CPE that has been previously connected to the network and repair and maintenance are expensed as incurred.

The estimated useful lives assigned to our property, plant and equipment are reviewed on an annual basis or more frequently if circumstances warrant and such lives are revised to the extent necessary due to changing facts and circumstances. Any changes in estimated useful lives are reflected prospectively.

Property, plant and equipment (including equipment under capital leases) consist of the following assets, which are depreciated or amortized on a straight-line basis over the estimated useful lives shown below:




	December 31, 2017			December 31, 2016			Estimated Useful Lives
Customer premise equipment	$	1,093,726		$	871,049		3 to 5 years
Headends and related equipment	1,626,293			1,482,631			4 to 25 years
Infrastructure	4,003,845			3,740,494			3 to 25 years
Equipment and software	918,298			735,012			3 to 10 years
Construction in progress (including materials and supplies)	240,496			84,321
Furniture and fixtures	52,545			45,576			5 to 12 years
Transportation equipment	138,147			135,488			5 to 10 years
Buildings and building improvements	394,421			390,337			10 to 40 years
Leasehold improvements	108,071			104,309			Term of lease
Land	47,563			47,715
	8,623,405			7,636,932
Less accumulated depreciation and amortization	(2,599,579		)	(1,039,297		)
	$	6,023,826		$	6,597,635

For the years ended December 31, 2017 and December 31, 2016, the Company capitalized certain costs aggregating $151,646 and $75,804, respectively, related to the acquisition and development of internal use software, which are included in the table above.

Depreciation expense on property, plant and equipment (including capital leases) for the years ended December 31, 2017 and 2016 amounted to $1,588,764 and $1,046,896, respectively.

The gross amount of buildings and equipment and related accumulated depreciation recorded under capital leases is presented below:



	December 31,
	2017			2016
Buildings and equipment	$	48,936		$	53,833
Less accumulated depreciation	(12,972		)	(6,306		)
	$	35,964		$	47,527

OPERATING LEASES

12 Months Ended

Dec. 31, 2017

Leases [Abstract]

OPERATING LEASES

The Company leases certain office, production, and transmission facilities, as well as office equipment, under terms of leases expiring at various dates through 2100. The leases generally provide for escalating rentals over the term of the lease plus certain real estate taxes and other costs or credits. Costs associated with such operating leases are recognized on a straight-line basis over the initial lease term. The difference between rent expense and rent paid is recorded as deferred rent. In addition, the Company rents space on utility poles for its operations. The Company's pole rental agreements are for varying terms, and management anticipates renewals as they expire. Rent expense, including pole rentals, for the years ended December 31, 2017 and 2016 amounted to $95,017 and $65,881, respectively.

The minimum future annual payments for all operating leases (with initial or remaining terms in excess of one year) during the next five years and thereafter, including pole rentals from January 1, 2018 through December 31, 2022, at rates now in force are as follows:



2018	$	74,992
2019	72,142
2020	69,203
2021	63,735
2022	55,234
Thereafter	140,406

INTANGIBLE ASSETS

3 Months Ended

12 Months Ended

Mar. 31, 2018

Dec. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

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

INTANGIBLE ASSETS

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



	As of December 31, 2017							As of December 31, 2016
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Estimated Useful Lives
Customer relationships	$	5,970,884	$	(1,409,021	)	$	4,561,863	$	5,925,884	$	(580,276	)	$	5,345,608	8 to 18 years
Trade names (a)	1,067,083		(588,574		)	478,509		1,066,783		(83,397		)	983,386		2 to 5 years
Other amortizable intangibles	37,060		(10,978		)	26,082		26,743		(3,093		)	23,650		1 to 15 years
	$	7,075,027	$	(2,008,573	)	$	5,066,454	$	7,019,410	$	(666,766	)	$	6,352,644

(a)

On May 23, 2017, Altice N.V. announced the adoption of a global brand to replace the Company's brands in the future, reducing the remaining useful lives of these trade name intangibles to three years from the date of the adoption, which reflected one year as an in-use asset and two years as a defensive asset. In December 2017, the Company made a decision to postpone the adoption of a global brand that would have replaced the Optimum brand, increasing the useful life of the Optimum trade name intangible asset to 5 years.

Amortization expense for the years ended December 31, 2017 and 2016 and aggregated $1,341,807 and $653,410, respectively.

The following table sets forth the estimated amortization expense on intangible assets for the periods presented:



Estimated amortization expense
Year Ending December 31, 2018	$	873,133
Year Ending December 31, 2019	777,846
Year Ending December 31, 2020	696,240
Year Ending December 31, 2021	616,718
Year Ending December 31, 2022	537,100

The following table summarizes information relating to the Company's acquired indefinite-lived intangible assets as of December 31, 2017:



	As of December 31, 2017						As of December 31, 2016
	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	5,866,120		2,153,741		8,019,861		5,838,959		2,153,741		7,992,700
Total	$	13,979,695	$	7,060,247	$	21,039,942	$	13,952,534	$	7,060,247	$	21,012,781

The carrying amount of goodwill is presented below:



Gross goodwill as of January 1, 2016	$	2,040,402
Goodwill recorded in connection with Cablevision Acquisition	5,838,959
Adjustments to purchase accounting relating to Cequel Acquisition	113,339
Gross goodwill as of January 1, 2017	7,992,700
Goodwill recorded in connection with acquisitions in the first and fourth quarters of 2017 (Cablevision Segment)	23,948
Adjustments to purchase accounting relating to Cablevision Acquisition	3,213
Net goodwill as of December 31, 2017	$	8,019,861

- Definition

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.

+ References + Details

DEBT

3 Months Ended

12 Months Ended

Mar. 31, 2018

Dec. 31, 2017

Debt Disclosure [Abstract]

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

DEBT

CSC Holdings Credit Facilities

In connection with the Cablevision Acquisition, in October 2015, Finco, a wholly-owned subsidiary of the Company, which merged with and into CSC Holdings on June 21, 2016, entered into a senior secured credit facility, which provides U.S. dollar term loans currently in an aggregate principal amount of $3,000,000 ($2,985,000 outstanding at December 31, 2017) (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 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 and March 15, 2017, respectively, and as further amended, restated, supplemented or otherwise modified from time to time, the “CVC Credit Facilities Agreement”).

The amendment to the CVC Credit Facilities Agreement entered into on September 9, 2016, extended the maturity date of the CVC Term Loan Facility to October 11, 2024. In October 2016, CSC Holdings used the net proceeds from the sale of $1,310,000 aggregate principal amount of 5.5% senior guaranteed notes due 2027 (the ‘‘2027 Guaranteed Notes’’) (after the deduction of fees and expenses) to prepay outstanding loans under the CSC Holdings Term Credit Facility that were not extended pursuant to this amendment. In connection with the prepayment of the Term Credit Facility, the Company wrote-off the deferred financing costs and the unamortized discount related to the existing term loan aggregating $102,894. Additionally, the Company recorded deferred financing costs and an original issue discount of $7,249 and $6,250, respectively, which are both being amortized to interest expense over the term of the Term Loan Facility.

The amendment to the CVC Credit Facilities Agreement entered into on March 15, 2017 (“Extension Amendment”) increased the Term Loan by $500,000 to $3,000,000 and the maturity date for this facility was extended to July 17, 2025. The closing of the Extension Amendment occurred in April 2017 and the proceeds were used to refinance the entire $2,493,750 principal amount of existing Term Loans and redeem $500,000 of the 8.625% Senior Notes due September 2017 issued by Cablevision. In connection with the Extension Amendment and the redemption of the senior notes, the Company recorded a loss on extinguishment of debt and write-off of deferred financing costs aggregating $18,976.

During the year ended December 31, 2017, CSC Holdings borrowed $1,350,000 under its revolving credit facility ($500,000 was used to make cash distributions to its stockholders) and made voluntary repayments aggregating $1,075,256 with cash on hand.

Under the Extension Amendment, the Company is required to make scheduled quarterly payments equal to 0.25% (or $7,500) of the principal amount of the Term Loan, beginning with the fiscal quarter ended September 30, 2017, with the remaining balance scheduled to be paid on July 17, 2025.

The CVC Credit Facilities permit CSC Holdings to request revolving loans, swing line loans or letters of credit from the revolving lenders, swingline lenders or issuing banks, as applicable, thereunder, from time to time prior to November 30, 2021, unless the commitments under the CVC Revolving Credit Facility have been previously terminated.

Loans comprising each eurodollar borrowing or alternate base rate borrowing, as applicable, bear 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:


•	in respect of the CVC Term Loans, (i) with respect to any alternate base rate loan, 1.25% per annum and (ii) with respect to any eurodollar loan, 2.25% per annum, and


•	in respect of the CVC Revolving Credit Facility loans (i) with respect to any alternate base rate loan, 2.25% per annum and (ii) with respect to any eurodollar loan, 3.25% per annum.

The CVC Credit Facilities Agreement requires the prepayment of outstanding CVC Term Loans, subject to certain exceptions and deductions, with (i) 100% of the net cash proceeds of certain asset sales, subject to reinvestment rights and certain other exceptions; and (ii) commencing with the fiscal year ending December 31, 2017, a pari ratable share (based on the outstanding principal amount of the Term Loans divided by the sum of the outstanding principal amount of all pari passu indebtedness and the Term Loans) of 50% of annual excess cash flow, which will be reduced to 0% if the consolidated net senior secured leverage ratio of CSC Holdings is less than or equal to 4.5 to 1.

The obligations under the CVC Credit Facilities are guaranteed by each restricted subsidiary of CSC Holdings (other than CSC TKR, LLC and its subsidiaries and certain excluded subsidiaries) (the “Initial Guarantors”) and, subject to certain limitations, will be guaranteed by each future material wholly-owned restricted subsidiary of CSC Holdings. The obligations under the CVC Credit Facilities (including any guarantees thereof) are secured on a first priority basis, subject to any liens permitted by the Credit Facilities, by capital stock held by CSC Holdings or any guarantor in certain subsidiaries of CSC Holdings, subject to certain exclusions and limitations.

The CVC Credit Facilities Agreement includes certain negative covenants which, among other things and subject to certain significant exceptions and qualifications, limit CSC Holdings' ability and the ability of its restricted subsidiaries to: (i) incur or guarantee additional indebtedness, (ii) make investments, (iii) create liens, (iv) sell assets and subsidiary stock, (v) pay dividends or make other distributions or repurchase or redeem our capital stock or subordinated debt, (vi) engage in certain transactions with affiliates, (vii) enter into agreements that restrict the payment of dividends by subsidiaries or the repayment of intercompany loans and advances; and (viii) engage in mergers or consolidations. In addition, the CVC Revolving Credit Facility includes a financial maintenance covenant solely for the benefit of the lenders under the CVC Revolving Credit Facility consisting of a maximum consolidated net senior secured leverage ratio of CSC Holdings and its restricted subsidiaries of 5.0 to 1.0. The financial covenant will be tested on the last day of any fiscal quarter, but only if on such day there are outstanding borrowings under the CVC Revolving Credit Facility (including swingline loans but excluding any cash collateralized letters of credit and undrawn letters of credit not to exceed $15,000).

The CVC Credit Facilities Agreement also contains certain customary representations and warranties, affirmative covenants and events of default (including, among others, an event of default upon a change of control). If an event of default occurs, the lenders under the CVC Credit Facilities will be entitled to take various actions, including the acceleration of amounts due under the CVC Credit Facilities and all actions permitted to be taken by a secured creditor.

CSC Holdings was in compliance with all of its financial covenants under the CVC Credit Facilities as of December 31, 2017.

Cequel Credit Facilities

On June 12, 2015, Altice US Finance I Corporation, an indirect wholly-owned subsidiary of Cequel, entered into a senior secured credit facility which currently provides term loans in an aggregate principal amount of $1,265,000 ($1,258,675 outstanding at December 31, 2017) (the “Cequel Term Loan Facility” and the term loans extended under the Cequel Term Loan Facility, the “Cequel Term Loans”) and 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 amended, restated, supplemented or otherwise modified on October 25, 2016, December 9, 2016 and March 15, 2017, and as further amended, restated, supplemented or modified from time to time, the “Cequel Credit Facilities Agreement”).

The amendment to the Cequel Credit Facilities Agreement entered into on March 15, 2017 (“Cequel Extension Amendment”) increased the Term Loan by $450,000 to $1,265,000 and the maturity date for this facility was extended to July 28, 2025. The closing of the Extension Amendment occurred in April 2017 and the proceeds were used to refinance the entire $812,963 principal amount of loans under the Term Loan and redeem $450,000 of the 6.375% Senior Notes due September 15, 2020. In connection with the Cequel Extension Amendment and the redemption of the senior notes, the Company recorded a loss on extinguishment of debt and write-off of deferred financings costs aggregating $28,684.

Under the Cequel Extension Amendment, the Company is required to make scheduled quarterly payments equal to 0.25% (or $3,163) of the principal amount of the Cequel Term Loan, beginning with the fiscal quarter ended September 30, 2017, with the remaining balance scheduled to be paid on July 28, 2025.

Loans comprising each eurodollar borrowing or alternate base rate borrowing, as applicable, bear 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:


•	in respect of the Cequel Term Loans, (i) with respect to any alternate base rate loan, 1.25% per annum and (ii) with respect to any eurodollar loan, 2.25% per annum, and


•	in respect of Cequel Revolving Credit Facility loans (i) with respect to any alternate base rate loan, 2.25% per annum and (ii) with respect to any eurodollar loan, 3.25% per annum.

The Cequel Credit Facilities Agreement requires the prepayment of outstanding Term Loans, subject to certain exceptions and deductions, with (i) 100% of the net cash proceeds of certain asset sales, subject to reinvestment rights and certain other exceptions; and (ii) a pari ratable share (based on the outstanding principal amount of the Cequel Term Loans divided by the sum of the outstanding principal amount of all pari passu indebtedness and the Cequel Term Loans) of 50% of annual excess cash flow, which will be reduced to 0% if the consolidated net senior secured leverage ratio is less than or equal to 4.5:1.

The debt under the Cequel Credit Facility is secured by a first priority security interest in the capital stock of Cequel Communications, LLC and substantially all of the present and future assets of Cequel Communications, LLC and its restricted subsidiaries, and is guaranteed by Cequel Communications Holdings II, LLC, an indirect subsidiary of Cequel (the "Parent Guarantor"), as well as all of Cequel Communications, LLC's existing and future direct and indirect subsidiaries, subject to certain exceptions set forth in the Cequel Credit Facilities Agreement. The Cequel Credit Facilities Agreement contains customary representations, warranties and affirmative covenants. In addition, the Cequel Credit Facilities Agreement contains restrictive covenants that limit, among other things, the ability of Cequel Communications, LLC and its subsidiaries to incur indebtedness, create liens, engage in mergers, consolidations and other fundamental changes, make investments or loans, engage in transactions with affiliates, pay dividends, and make acquisitions and dispose of assets. The Cequel Credit Facilities Agreement also contains a maximum senior secured leverage maintenance covenant of 5.0 to 1.0. Additionally, the Cequel Credit Facilities Agreement contains customary events of default, including failure to make payments, breaches of covenants and representations, cross defaults to other indebtedness, unpaid judgments, changes of control and bankruptcy events. The lenders’ commitments to fund amounts under the revolving credit facility are subject to certain customary conditions.

As of December 31, 2017, Cequel was in compliance with all of its financial covenants under the Cequel Credit Facilities Agreement.

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



					Carrying Amount (a)
	Maturity Date	Interest Rate	Principal		December 31, 2017		December 31, 2016
CSC Holdings Restricted Group:
Revolving Credit Facility (b)	$20,000 on October 9, 2020, remaining balance on November 30, 2021	4.75%	$	450,000	$	425,488	$	145,013
Term Loan Facility	July 17, 2025	3.74%	2,985,000		2,967,818		2,486,874
Cequel:
Revolving Credit Facility (c)	November 30, 2021	—	—		—		—
Term Loan Facility	July 28, 2025	3.82%	1,258,675		1,250,217		812,903
			$	4,693,675	4,643,523		3,444,790
Less: Current portion					42,650		33,150
Long-term debt					$	4,600,873	$	3,411,640


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


(b)	At December 31, 2017, $115,973 of the revolving credit facility was restricted for certain letters of credit issued on behalf of the Company and $1,734,027 of the facility was undrawn and available, subject to covenant limitations.


(c)	At December 31, 2017, $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.

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:



			Interest Rate		Principal Amount		Carrying Amount (a)
Issuer	Date Issued	Maturity Date	Interest Rate		Principal Amount		December 31, 2017		December 31, 2016
Senior notes:
CSC Holdings (b)(f)(n)	February 6, 1998	February 15, 2018	7.875	%	$	300,000	$	301,184	$	310,334
CSC Holdings (b)(f)	July 21, 1998	July 15, 2018	7.625	%	500,000		507,744		521,654
CSC Holdings (c)(f)	February 12, 2009	February 15, 2019	8.625	%	526,000		541,165		553,804
CSC Holdings (c)(f)	November 15, 2011	November 15, 2021	6.750	%	1,000,000		960,146		951,702
CSC Holdings (c)(f)	May 23, 2014	June 1, 2024	5.250	%	750,000		660,601		650,193
CSC Holdings (e)	October 9, 2015	January 15, 2023	10.125	%	1,800,000		1,777,914		1,774,750
CSC Holdings (e)(l)	October 9, 2015	October 15, 2025	10.875	%	1,684,221		1,661,135		1,970,379
Senior guaranteed notes:
CSC Holdings (e)	October 9, 2015	October 15, 2025	6.625	%	1,000,000		986,717		985,469
CSC Holdings (g)	September 23, 2016	April 15, 2027	5.500	%	1,310,000		1,304,468		1,304,025
Senior notes:
Cablevision (k)(o)	September 23, 2009	September 15, 2017	8.625	%	—		—		926,045
Cablevision (c)(f)(n)(o)	April 15, 2010	April 15, 2018	7.750	%	750,000		754,035		767,545
Cablevision (c)(f)(o)	April 15, 2010	April 15, 2020	8.000	%	500,000		492,009		488,992
Cablevision (c)(f)(o)	September 27, 2012	September 15, 2022	5.875	%	649,024		572,071		559,500
Senior notes:
Cequel Communications Holdings I and Cequel Capital (d)(m)(p)	Oct. 25, 2012 Dec. 28, 2012	September 15, 2020	6.375	%	1,050,000		1,027,493		1,457,439
Cequel Communications Holdings I and Cequel Capital (d)(p)	May 16, 2013 Sept. 9, 2014	December 15, 2021	5.125	%	1,250,000		1,138,870		1,115,767
Cequel Communications Holdings I and Cequel Capital (i)(p)	June 12, 2015	July 15, 2025	7.750	%	620,000		604,374		602,925
Senior secured notes:
Altice US Finance I Corporation (h)(p)	June 12, 2015	July 15, 2023	5.375	%	1,100,000		1,082,482		1,079,869
Altice US Finance I Corporation (j)(p)	April 26, 2016	May 15, 2026	5.500	%	1,500,000		1,488,024		1,486,933
					$	16,289,245	15,860,432		17,507,325
Less: Current portion							507,744		926,045
Long-term debt							$	15,352,688	$	16,581,280


(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)	In April 2017, the Company redeemed $500,000 of the senior notes from proceeds from the CVC Term Loan facility. In September 2017, these senior notes matured and the Company repaid the remaining principal balance of $400,000.

(l)

In July 2017, the Company used approximately $350,120 of the proceeds from the IPO to fund the redemption of $315,779 principal amount of CSC Holdings senior notes due October 2025 and the related call premium of approximately $34,341which was recorded as a loss on extinguishment of debt. The Company also recorded a write-off of deferred financings costs in connection with this redemption aggregating $4,516.


(m)	In April 2017, the Company redeemed $450,000 of the senior notes from proceeds from the Cequel Term Loan facility.


(n)	As a result of the repayment of these notes in February 2018, discussed in Note 20, the carrying amount of these Notes has been classified as long-term indebtedness.


(o)	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.

(p)

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.

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 December 31, 2017.

CSC Holdings 5.5% Senior Guaranteed Notes due 2027

In September 2016, CSC Holdings issued $1,310,000 aggregate principal amount of 5.50% senior guaranteed notes due April 15, 2027. The 2027 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.

As discussed above , in October 2016, CSC Holdings used the proceeds from the issuance of the 2027 Guaranteed Notes (after the deduction of fees and expenses) to prepay the outstanding loans under the CVC Term Credit Facility that were not extended pursuant to the extension amendment on September 9,2016. In connection with the issuance of the 2027 Guaranteed Notes, the Company incurred deferred financing costs of approximately $5,575, which are being amortized to interest expense over the term of the 2027 Guaranteed Notes.

Cablevision Acquisition Notes

The $1,000,000 principal amount of the 2025 Guaranteed Notes bear interest at a rate of 6.625% per annum and were issued at a price of 100.00%. Interest on the 2025 Guaranteed Notes is payable semi-annually on January 15 and July 15, commencing on July 15, 2016. These 2025 Guaranteed Notes are guaranteed on a senior basis by the Initial Guarantors.

The $1,800,000 principal amount of the 2023 Notes and $2,000,000 principal amount of the 2025 Notes, bear interest at a rate of 10.125% and 10.875%, respectively, per annum and were issued at prices of 100.00%. Interest on the 2023 Notes and 2025 Notes is payable semi-annually on January 15 and July 15, which began on July 15, 2016.

Deferred financing costs of approximately $76,579 incurred in connection with the issuance of the Cablevision Acquisition Notes are being amortized to interest expense over the term of the Cablevision Acquisition Notes.

The indentures under which the Cablevision and CSC Holdings Senior Guaranteed Notes and Senior Notes and Debentures were issued contain certain covenants and agreements with respect to investment grade debt securities, including limitations on the ability of CSC Holdings and its restricted subsidiaries to (i) incur or guarantee additional indebtedness, (ii) make investments or other restricted payments, (iii) create liens, (iv) sell assets and subsidiary stock, (v) pay dividends or make other distributions or repurchase or redeem our capital stock or subordinated debt, (vi) engage in certain transactions with affiliates, (vii) enter into agreements that restrict the payment of dividends by subsidiaries or the repayment of intercompany loans and advances, and (viii) engage in mergers or consolidations, in each case subject to certain exceptions. The indentures also contain certain customary events of default. If an event of default occurs, the obligations under the Cablevision Acquisition Notes may be accelerated.

As of December 31, 2017, Cablevision and CSC Holdings were in compliance with all of its financial covenants under the indentures under which the senior notes and debentures and senior guaranteed notes were issued.

Cequel Senior Secured Notes

On June 12, 2015, Altice US Finance I Corporation, an indirect subsidiary of Altice N.V., issued $1,100,000 principal amount of senior secured notes (the ‘‘Cequel 2023 Senior Secured Notes’’), the proceeds from which were placed in escrow to finance a portion of the purchase price for the Cequel Acquisition. The Cequel 2023 Senior Secured Notes bear interest at a rate of 5.375% per annum and were issued at a price of 100.00%. Interest on the Cequel 2023 Senior Secured Notes is payable semi-annually on January 15 and July 15 of each year. Following the consummation of the Cequel Acquisition and related transactions the equity interests in Altice US Finance I Corporation were contributed through one or more intermediary steps to Suddenlink, and the Senior Secured Notes were guaranteed by Cequel Communications Holdings II LLC, Suddenlink and certain of the subsidiaries of Suddenlink and are secured by certain assets of Cequel Communications Holdings II LLC, Suddenlink and its subsidiaries.

On April 26, 2016, Altice US Finance I Corporation issued $1,500,000 aggregate principal amount of senior secured notes (the ‘‘Cequel 2026 Senior Secured Notes’’). The proceeds from the sale were used to repay the $1,477,200 remaining balance under the previous credit facility and to pay related fees and expenses. The Cequel 2026 Senior Secured Notes mature on May 15, 2026 and bear interest at a rate of 5.50% annually. Interest on the Cequel 2026 Senior Secured Notes is payable semi-annually on May 15 and November 15 of each year, commencing on November 15, 2016. Deferred financing costs recorded in connection with the issuance of these notes amounted to $13,773 and are being amortized over the term of the notes.

Cequel Senior Notes

On June 12, 2015, Altice US Finance II Corporation, an indirect subsidiary of Altice N.V., issued $300,000 principal amount of the Cequel 2025 Senior Notes, the proceeds from which were placed in escrow, to finance a portion of the purchase price for the Cequel Acquisition. The Cequel 2025 Senior Notes were issued by the Cequel 2025 Senior Notes Issuer, an indirect subsidiary of Altice N.V., bear interest at a rate of 7.75% per annum and were issued at a price of 100.00%. Interest on the Cequel 2025 Senior Notes is payable semi-annually on January 15 and July 15 of each year. Following the consummation of the Cequel Acquisition and related transactions, the Cequel 2025 Senior Notes Issuer merged into Cequel, the Cequel 2025 Senior Notes became the obligations of Cequel and Cequel Capital Corporation became the co-issuer of the Cequel 2025 Senior Notes.

On June 12, 2015, Altice US Finance S.A., an indirect subsidiary of Altice N.V. issued $320,000 principal amount of the 7.75% Senior Notes due 2025 (the ‘‘Holdco Notes’’), the proceeds from which were placed in escrow, to finance a portion of the purchase price for the Cequel Acquisition. The Holdco Notes bear interest at a rate of 7.75% per annum and were issued at a price of 98.275%. Interest on the Holdco Notes is payable semi-annually on January 15 and July 15 of each year. The Holdco Notes were automatically exchanged into an equal aggregate principal amount of Cequel 2025 Senior Notes at Cequel during the second quarter of 2016.

The Cequel Indentures contain certain covenants, agreements and events of default which are customary with respect to non-investment grade debt securities, including limitations on the Company’s ability to incur additional indebtedness, pay dividends on or make other distributions or repurchase the Company’s capital stock, make certain investments, enter into certain types of transactions with affiliates, create liens and sell certain assets or merge with or into other companies.

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.

As discussed in Note 1, in connection with the Company's IPO, 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 for the year ended December 31, 2017. In connection with the conversion of the notes, the Company recorded a credit to paid in capital of $2,264,252.

For the year ended December 31, 2017 and 2016, the Company recognized interest expense of $90,405 and $102,557 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 December 31, 2017, including notes payable, collateralized indebtedness (see Note 10), and capital leases, are as follows:



Years Ending December 31,	Cablevision		Cequel		Total
2018	$	1,619,094	$	16,518	$	1,635,612
2019	565,604		18,310		583,914
2020	552,902		1,062,713		1,615,615
2021	2,921,269		1,262,723		4,183,992
2022	680,700		12,734		693,434
Thereafter	9,380,513		4,416,270		13,796,783

The amounts in the table above do not include the effects of the debt transactions discussed in Note 20.

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS

3 Months Ended

12 Months Ended

Mar. 31, 2018

Dec. 31, 2017

Derivative Instruments and Hedging Activities Disclosure [Abstract]

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.

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 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 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 consolidated statements of operations.

All of the Company's monetization transactions are obligations of its wholly-owned subsidiaries that are not part of CSC Holdings' 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 December 31, 2017, 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 December 31, 2017.

Put/Call Options

In the third quarter of 2017, the Company entered into a put-call contract that expired in the third quarter of 2018 whereby the Company sold a put option and purchased a call option with the same strike price. These put-call options were settled as of December 31, 2017 and the Company recorded a loss of $97,410 for the year ended December 31, 2017, which represents the difference between the strike price and the closing price of the underlying shares.

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 Cequel 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 consolidated balance sheets:



		Asset Derivatives				Liability Derivatives
Derivatives Not Designated as Hedging Instruments	Balance Sheet Location	Fair Value at December 31, 2017		Fair Value at December 31, 2016		Fair Value at December 31, 2017			Fair Value at December 31, 2016

Prepaid forward contracts	Derivative contracts, current	$	52,545	$	352	$	(52,545	)	$	(13,158	)
Prepaid forward contracts	Derivative contracts, long-term	—		10,604		(109,504		)	—
Interest rate swap contracts	Liabilities under derivative contracts, long-term	—		—		(77,902		)	(78,823		)
		$	52,545	$	10,956	$	(239,951	)	$	(91,981	)

Loss related to the Company's derivative contracts related to the Comcast common stock for the years ended December 31, 2017 and 2016 of $(138,920) and $(53,696), respectively, are reflected in gain (loss) on derivative contracts, net in the Company's consolidated statements of operations.

For the years ended December 31, 2017 and 2016, the Company recorded a gain on investments of $237,354 and $141,896, respectively, primarily representing the net increase in the fair values of the investment securities pledged as collateral.

For the years ended December 31, 2017 and 2016, the Company recorded a gain (loss) on interest rate swap contracts of $5,482 and $(72,961), respectively.

Settlements of Collateralized Indebtedness

The following table summarizes the settlement of the Company's collateralized indebtedness relating to Comcast shares that were settled by delivering cash equal to the collateralized loan value, net of the value of the related equity derivative contracts during the year ended December 31, 2017:



Number of shares (a)	26,815,368
Collateralized indebtedness settled	$	(774,703	)
Derivatives contracts settled	(56,356		)
	(831,059		)
Proceeds from new monetization contracts	838,794
Net cash proceeds	$	7,735


(a)	Share amounts are adjusted for the 2 for 1 stock split in February 2017.

The cash to settle the collateralized indebtedness was obtained from the proceeds of new monetization contracts covering an equivalent number of Comcast shares. The terms of the new contracts allow the Company to retain upside participation in Comcast shares up to each respective contract's upside appreciation limit with downside exposure limited to the respective hedge price.

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. In connection with the execution of these contracts, the Company recorded (i) the fair value of the equity derivative contracts of $53,316 (in a net asset position), (ii) notes payable of $111,657, representing the fair value of the existing equity derivative contracts, in a liability position, and (iii) a discount on notes payable of $58,341.

FAIR VALUE MEASUREMENT

3 Months Ended

12 Months Ended

Mar. 31, 2018

Dec. 31, 2017

Fair Value Disclosures [Abstract]

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.

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	December 31, 2017		December 31, 2016
Assets:
Money market funds (of which $14,700 is classified as restricted cash as of December 31, 2016)	Level I	$	5,949	$	100,139
Investment securities pledged as collateral	Level I	1,720,357		1,483,030
Prepaid forward contracts	Level II	52,545		10,956
Liabilities:
Prepaid forward contracts	Level II	162,049		13,158
Interest rate swap contracts	Level II	77,902		78,823
Contingent consideration related to 2017 acquisitions	Level III	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 related to acquisitions in the first and fourth quarters of 2017 of $30,000 and $2,233, respectively, was estimated based on a probability assessment of attaining the targets. The estimated amount recorded as of December 31, 2017 is the full contractual amount for the first quarter acquisition and approximately 51% of the contractual amount for the acquisition that occurred in the fourth quarter.

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, Notes Payable to Affiliates and Related Parties 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 consolidated balance sheets, are summarized as follows:



		December 31, 2017				December 31, 2016
	Fair Value Hierarchy	Carrying Amount (a)		Estimated Fair Value		Carrying Amount (a)		Estimated Fair Value
Altice USA debt instruments:
Notes payable to affiliates and related parties	Level II	$	—	$	—	$	1,750,000	$	1,837,876
CSC Holdings debt instruments:
Credit facility debt	Level II	3,393,306		3,435,000		2,631,887		2,675,256
Collateralized indebtedness	Level II	1,349,474		1,305,932		1,286,069		1,280,048
Senior guaranteed notes	Level II	2,291,185		2,420,000		2,289,494		2,416,375
Senior notes and debentures	Level II	6,409,889		7,221,846		6,732,816		7,731,150
Notes payable	Level II	56,956		55,289		13,726		13,260
Cablevision senior notes	Level II	1,818,115		1,931,239		2,742,082		2,920,056
Cequel debt instruments:
Cequel credit facility	Level II	1,250,217		1,258,675		812,903		815,000
Senior secured notes	Level II	2,570,506		2,658,930		2,566,802		2,689,750
Senior notes	Level II	2,770,737		2,983,615		3,176,131		3,517,275
Notes payable	Level II	8,946		8,946		—		—
		$	21,919,331	$	23,279,472	$	24,001,910	$	25,896,046


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

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.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

INCOME TAXES

3 Months Ended

12 Months Ended

Mar. 31, 2018

Dec. 31, 2017

Income Tax Disclosure [Abstract]

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.

INCOME TAXES

The Company files a federal consolidated and certain state combined income tax returns with its 80% or more owned subsidiaries.

Income tax benefit attributable to the Company's operations for the years ended December 31, 2017 and 2016 consist of the following components:



	Years Ended December 31,
	2017			2016
Current expense (benefit):
Federal	$	5,261		$	(981	)
State	12,530			5,310
	17,791			4,329
Deferred benefit:
Federal	(2,095,930		)	(223,159		)
State	(784,224		)	(40,830		)
	(2,880,154		)	(263,989		)
Tax benefit relating to uncertain tax positions	11			(6		)
Income tax benefit	$	(2,862,352	)	$	(259,666	)

The income tax benefit attributable to the Company's operations differs from the amount derived by applying the statutory federal rate to pretax loss principally due to the effect of the following items:



	Years Ended December 31,
	2017			2016
Federal tax benefit at statutory rate	$	(478,656	)	$	(381,901	)
State income taxes, net of federal impact	(61,698		)	(39,336		)
Changes in the valuation allowance	(111		)	297
Impact of Federal Tax Reform	(2,332,677		)	—
Changes in the state rates used to measure deferred taxes, net of federal impact	(12,896		)	153,239
Tax benefit relating to uncertain tax positions	(253		)	(120		)
Non-deductible share-based compensation related to the carried unit plan	20,101			5,029
Non-deductible Cablevision Acquisition transaction costs	—			4,457
Other non-deductible expenses	3,405			1,551
Other, net	433			(2,882		)
Income tax benefit	$	(2,862,352	)	$	(259,666	)

Pursuant to the enactment of the Tax Cuts & Jobs Act ("Tax Reform") on December 22, 2017, the Company recorded a noncash deferred tax benefit of $2,332,677 to remeasure the net deferred tax liability to adjust for the reduction in the corporate federal income tax rate 35% to 21% which is effective on January 1, 2018. This adjustment results primarily from a decrease in the deferred tax liabilities with regard to fixed assets and intangibles, partially offset by a decrease in the deferred tax asset for the federal net operating loss carry forward (‘‘NOL’’). The noncash deferred tax benefit is provisional. Revised estimates and additional guidance regarding application of Tax Reform may require adjustments during the allowable measurement period.

Overall, Tax Reform will have a favorable impact on the Company’s income tax profile. Additional first-year depreciation deductions represent a significant timing benefit. Since Tax Reform only limits the deduction for NOLs arising in years beginning after December 31, 2017, the timing of the Company’s deductions with regard to its existing NOLs is largely unaffected. The Company will be subject to Tax Reform’s limitation on interest deductibility which is based on a limit calculated without regard to depreciation or amortization through 2021. The resulting interest deduction that is deferred, and can be carried forward indefinitely, is expected to fully reverse. However, as is the case with any future deductible temporary difference, management will evaluate realizability to determine whether a valuation allowance is required. Management does not expect that a valuation allowance will be required based on its preliminary estimate of the current facts and circumstances. Repeal of the alternative minimum tax will reduce projected tax payments in the short term while also providing for the refund of alternative minimum tax credits.

As described in Note 1, in June, 2016, (i) Cequel was contributed to Altice USA and (ii) Altice USA completed the Cablevision Acquisition. Accordingly, in the second quarter of 2016, Cequel and Cablevision joined the federal consolidated and certain state combined income tax returns of Altice USA. As a result, the applicate tax rate used to measure deferred tax assets and liabilities of Cequel increased, resulting in a noncash deferred income tax charge of $153,660.

The tax effects of temporary differences which give rise to significant portions of deferred tax assets or liabilities and the corresponding valuation allowance are as follows.



	December 31,
	2017			2016
Noncurrent
NOLs and tax credit carry forwards	$	785,809		$	971,728
Compensation and benefit plans	49,698			93,939
Partnership investments	68,054			113,473
Restructuring liability	33,247			37,393
Other liabilities	40,149			45,561
Liabilities under derivative contracts	21,034			31,529
Interest deferred for tax purposes	128,516			39,633
Other	8,849			6,615
Deferred tax asset	1,135,356			1,339,871
Valuation allowance	(3,000		)	(3,125		)
Net deferred tax asset, noncurrent	1,132,356			1,336,746
Fixed assets and intangibles	(5,729,274		)	(9,065,635		)
Investments	(113,628		)	(187,795		)
Prepaid expenses	(8,105		)	(10,172		)
Fair value adjustments related to debt and deferred financing costs	(40,215		)	(30,535		)
Other	(10,420		)	(14,109		)
Deferred tax liability, noncurrent	(5,901,642		)	(9,308,246		)
Total net deferred tax liability	$	(4,769,286	)	$	(7,971,500	)

On January 1, 2017, the Company adopted ASU No. 2016-09 using the prospective transition method with respect to the presentation of excess tax benefits in the statement of cash flows. In connection with the adoption, a deferred tax asset of $310,771 for previously unrealized excess tax benefits related to share-based payment awards was recognized with the offset recorded to accumulated deficit.

As of December 31, 2017, the Company's federal NOLs were approximately $2,676,000. 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.

As of December 31, 2017, the Company has $48,995 of alternative minimum tax credits which do not expire and $17,806 of research credits, expiring in varying amounts from 2023 through 2035.

Deferred tax assets have resulted primarily from the Company's future deductible temporary differences and NOLs. In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion or all of the deferred tax asset will not be realized. In evaluating the need for a valuation allowance, management takes into account various factors, including the expected level of future taxable income, available tax planning strategies and reversals of existing taxable temporary differences. If such estimates and related assumptions change in the future, the Company may be required to record additional valuation allowances against its deferred tax assets, resulting in additional income tax expense in the Company's consolidated statements of operations. Management evaluates the realizability of the deferred tax assets and the need for additional valuation allowances quarterly. Pursuant to the Cablevision Acquisition and Cequel Acquisition, deferred tax liabilities resulting from the book fair value adjustment increased significantly and future taxable income that will result from the reversal of existing taxable temporary differences for which deferred tax liabilities are recognized is sufficient to conclude it is more likely than not that the Company will realize all of its gross deferred tax assets, except those deferred tax assets against which a valuation allowance has been recorded which relate to certain state NOLs.

In the normal course of business, the Company engages in transactions in which the income tax consequences may be uncertain. The Company's income tax returns are filed based on interpretation of tax laws and regulations. Such income tax returns are subject to examination by taxing authorities. For financial statement purposes, the Company only recognizes tax positions that it believes are more likely than not of being sustained. There is considerable judgment involved in determining whether positions taken or expected to be taken on the tax return are more likely than not of being sustained.

A reconciliation of the beginning and ending amount of unrecognized tax benefits associated with uncertain tax positions, excluding associated deferred tax benefits and accrued interest, is as follows:



Balance at January 1, 2016	$	4,025
Increases related to prior year tax positions	11
Balance at December 31, 2017	$	4,036

As of December 31, 2017, if all uncertain tax positions were sustained at the amounts reported or expected to be reported in the Company's tax returns, the elimination of the Company's unrecognized tax benefits, net of the deferred tax impact, would decrease income tax expense by $5,585.

In the second quarter of 2016, the Company changed its accounting policy on a prospective basis to present interest expense relating to uncertain tax positions as additional interest expense. For the year ended December 31, 2017, $659 of interest expense relating to uncertain tax position was recorded to interest expense.

The most significant jurisdictions in which the Company is required to file income tax returns include the states of New York, New Jersey, Connecticut, the City of New York, Texas and West Virginia. The State of New York is presently auditing income tax returns for years 2009 through 2011. The State of New Jersey is presently auditing income tax returns for years 2013 through 2015.

Management does not believe that the resolution of the ongoing income tax examination described above will have a material adverse impact on the financial position of the Company. Changes in the liabilities for uncertain tax positions will be recognized in the interim period in which the positions are effectively settled or there is a change in factual circumstances.

SHARE BASED COMPENSATION

3 Months Ended

12 Months Ended

Mar. 31, 2018

Dec. 31, 2017

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

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 annual 60 day 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 than 3 years and 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		Weighted Average Exercise Price Per Share		Weighted Average Remaining Contractual Term (in years)	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

SHARE BASED COMPENSATION

Carry Unit Plan

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. The carry unit plan has 259,442,785 units authorized for issuance, of which 211,670,834 have been issued to employees of the Company and 11,300,000 have been issued to employees of Altice N.V. and affiliated companies as of December 31, 2017.

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 annual 60 day 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 than 3 years and 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 Company measures the cost of employee services received in exchange for carry units based on the fair value of the award at grant date. In addition these units are presented as temporary equity on our consolidated balance sheet at fair value. For carry unit awards granted in 2016, an option pricing model was used which requires subjective assumptions for which changes in these assumptions could materially affect the fair value of the carry units outstanding. The time to liquidity event assumption was based on management’s judgment. The equity volatility assumption was estimated using the historical weekly volatility of publicly traded comparable companies. The risk-free rate assumed was based on the U.S. Constant Maturity Treasury Rates for a period matching the expected time to liquidity event. The discount for lack of marketability was based on Finnerty's (2012) average-strike put option model.

For carry unit awards granted in the first and second quarter of 2017, the Company estimated the grant date fair value based on the value established in the Company's IPO.

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, 2016	192,800,000		10,000,000	$	0.37
Granted	28,025,000		—	3.14
Forfeited	(7,854,166	)	—	0.37
Vested	(44,420,833	)	—	0.41
Balance, December 31, 2017	168,550,001		10,000,000	0.71

The weighted average fair value per unit was $1.76 and $2.50 as of December 31, 2016 and December 31, 2017, respectively. For the years ended December 31, 2017 and 2016, the Company recognized an expense of $57,430 and $14,368, respectively, related to the push down of share-based compensation related to the carry unit plan of which approximately $55,258 and $9,849 related to units granted to employees of the Company and $2,172 and $4,519 related to employees of Altice N.V. and affiliated companies allocated to the Company.

Stock Option Plan

In connection with the Company's IPO, the Company adopted the Altice USA 2017 Long Term Incentive Plan (the "2017 LTIP"). Under the 2017 LTIP, the Company may grant awards of options, restricted shares, restricted share units, stock appreciation rights, performance stock, performance stock units and other awards. Under the 2017 LTIP, awards may be granted to officers, employees and consultants of the Company or any of its affiliates. The 2017 LTIP will be administered by the Company's Board of Directors (the "Board"), subject to the provision of the stockholders' agreement. The Board has delegated its authority to the Company's Compensation Committee. The Compensation Committee has the full power and authority to, among other things, select eligible participants, to grant awards in accordance with the 2017 LTIP, to determine the number of shares subject to each award or the cash amount payable in connection with an award and determine the terms and conditions of each award. The maximum aggregate number of shares that may be issued under the 2017 LTIP is 9,879,291. The Board has the authority to amend, suspend, or terminate the 2017 LTIP. No amendment, suspension or termination will be effective without the approval of the Company's stockholders if such approval is required under applicable laws, rules and regulations.

On December 30, 2017, the Company granted 5,110,747 nonqualified stock options under the 2017 LTIP. The stock options were granted with an exercise price of $19.48, equal to the 30 day volume weighted average of the closing price of Class A common stock as of the grant date. Certain nonqualified stock options (2,730,949 awards) will vest 100% on December 21, 2020 and 2,379,798 awards will vest 50% on the second anniversary, 25% on the third anniversary and 25% on the fourth anniversary of the date of grant, generally subject to continued employment with the Company or any of its affiliates, and expire ten years from the date of grant.

The Company calculated the fair value of each option award on the date of grant using the Black-Scholes valuation model. The Company's computation of expected life was determined based on the simplified method (the average of the vesting period and option term) due to the Company's lack of recent historical data for similar awards. The interest rate for periods within the contractual life of the stock option was based on interest yields for U.S. Treasury instruments in effect at the time of grant. The Company's computation of expected volatility was based on historical volatility of its common stock and the expected volatility of comparable publicly-traded companies who granted options that had similar expected lives.

The following aggregate assumptions were used to calculate the fair values of stock option awards granted on December 30, 2017:



Risk-free interest rate		2.30%
Expected life (in years)		6.44
Dividend yield		—%
Volatility		33.95%
Grant date fair value		$8.77

AFFILIATE AND RELATED PARTY TRANSACTIONS

3 Months Ended

12 Months Ended

Mar. 31, 2018

Dec. 31, 2017

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.

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 on the equity method.

At December 31, 2017 and 2016, 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 $(2,649) and $5,606, respectively, and is included in investments in affiliates on our consolidated balance sheets. The operating results of Newsday and i24NEWS are recorded on the equity basis. For the years ended December 31, 2017 and 2016, the Company recorded equity in net loss of Newsday of $7,219 and $1,132, respectively, and equity in net loss of i24NEWS of $2,821 and $0, respectively.

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:



	Years Ended December 31,
	2017			2016
Revenue	$	1,100		$	1,086
Operating expenses:
Programming and other direct costs	$	(4,176	)	$	(1,947	)
Other operating expenses, net	(33,140		)	(18,854		)
Operating expenses, net	(37,316		)	(20,801		)

Interest expense (see Note 9)(a)	(90,405		)	(112,712		)
Loss on extinguishment of debt and write-off of deferred financing costs (see Note 9)	(513,723		)	—
Net charges	$	(640,344	)	$	(132,427	)
Capital Expenditures	$	22,012		$	45,886


(a)	The 2016 amount includes $10,155 related to Holdco Notes prior to the exchange in addition to the interest related to notes payable to affiliates and related parties discussed in Note 9.

Revenue

The Company recognized revenue primarily from 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

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 $30,000 and $20,556, for the years ended December 31, 2017 and 2016, respectively. 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 $4,057 and $887, respectively, net of a credit of $917 and $2,589 related to transition services provided to Newsday for the year ended December 31, 2017 and 2016, respectively.

Capital Expenditures

Capital expenditures for the year ended December 31, 2017 include $17,434 of equipment purchased from Altice Labs S.A., and $4,578 of software development services, that were capitalized, from Altice Management International and other Altice N.V. subsidiaries.

Capital expenditures for the year ended December 31, 2016 include $44,121 of equipment purchased from Altice Management International and $1,025 from another Altice N.V. subsidiary. In addition, the Company acquired certain software development services that were capitalized from Altice Labs S.A. aggregating $740.

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



	December 31,
	2017		2016
Due from:
Altice US Finance S.A. (a)	$	12,951	$	12,951
Newsday (b)	2,713		6,114
Altice Management Americas (b)	33		3,117
i24NEWS (b)	4,036		—
Other Altice N.V. subsidiaries (b)	31		—
	$	19,764	$	22,182
Due to:
CVC 3BV (c)	$	—	$	71,655
Neptune Holdings US LP (c)	—		7,962
Altice Management International (d)	—		44,121
Newsday (b)	33		275
Altice Labs S.A. (d)	7,354		866
Other Altice N.V. subsidiaries (e)	3,611		2,484
	$	10,998	$	127,363


(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 distributions payable to stockholders.


(d)	Amounts payable as of December 31, 2016 primarily represent amounts due for equipment purchases and/or software development services discussed above.


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

The table above does not include notes payable to affiliates and related parties of $1,750,000 and the related accrued interest of $102,557 as of December 31, 2016, respectively, which is reflected in accrued interest in the Company's balance sheet. See discussion in Note 9.

In the second quarter of 2017, prior to the Company's IPO, the Company declared and paid cash distributions aggregating $839,700 to stockholders, $500,000 of which were funded with proceeds from borrowings under CSC Holdings' revolving credit facility. In 2016, the Company declared cash distributions of $445,176, of which $365,559 were paid in 2016 and $79,617 were paid in the first quarter of 2017.

COMMITMENTS AND CONTINGENCIES

3 Months Ended

12 Months Ended

Mar. 31, 2018

Dec. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

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.

COMMITMENTS AND CONTINGENCIES

Commitments

Future cash payments and commitments required under arrangements pursuant to contracts entered into by the Company in the normal course of business as of December 31, 2017 are as follows:



	Payments Due by Period
	Total		Year 1		Years 2-3		Years 4-5		More than 5 years
Off balance sheet arrangements:
Purchase obligations (a)	$	8,427,609	$	3,072,083	$	4,181,199	$	1,094,508	$	79,819
Guarantees (b)	36,224		34,716		1,508		—		—
Letters of credit (c)	129,473		200		120		129,153		—
Total	$	8,593,306	$	3,106,999	$	4,182,827	$	1,223,661	$	79,819

(a)

Purchase obligations primarily include contractual commitments with various programming vendors to provide video services to customers and minimum purchase obligations to purchase goods or services. Future fees payable under contracts with programming vendors are based on numerous factors, including the number of customers receiving the programming. Amounts reflected above related to programming agreements are based on the number of customers receiving the programming as of December 31, 2017 multiplied by the per customer rates or the stated annual fee, as applicable, contained in the executed agreements in effect as of December 31, 2017.


(b)	Includes franchise and performance surety bonds primarily for the Company's cable television systems.


(c)	Represent letters of credit guaranteeing performance to municipalities and public utilities and payment of insurance premiums. Payments due by period for these arrangements represent the year in which the commitment expires although payments under these arrangements are required only in the event of nonperformance.

The table above does not include obligations for payments required to be made under multi-year franchise agreements based on a percentage of revenues generated from video service per year.

Many of the Company's franchise agreements and utility pole leases require the Company to remove its cable wires and other equipment upon termination of the respective agreements. The Company has concluded that the fair value of these asset retirement obligations cannot be reasonably estimated since the range of potential settlement dates is not determinable.

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. The Court granted preliminary approval of the settlement agreement on January 8, 2018, and set a hearing for final approval on May 17, 2018. As of December 31, 2016, the Company had an estimated liability associated with a potential settlement totaling $5,200. During the year ended December 31, 2017, the Company recorded an additional liability of $800. 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.

SEGMENT INFORMATION

3 Months Ended

12 Months Ended

Mar. 31, 2018

Dec. 31, 2017

Segment Reporting [Abstract]

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.

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:



	Year Ended December 31, 2017						Year Ended December 31, 2016
	Cablevision		Cequel		Total		Cablevision		Cequel		Total
Operating income	$	320,686	$	520,322	$	841,008	$	78,008	$	384,801	$	462,809
Share-based compensation	42,060		15,370		57,430		9,164		5,204		14,368
Restructuring and other expense	112,384		40,017		152,401		212,150		28,245		240,395
Depreciation and amortization (including impairments)	2,251,710		678,861		2,930,571		963,665		736,641		1,700,306
Adjusted EBITDA	$	2,726,840	$	1,254,570	$	3,981,410	$	1,262,987	$	1,154,891	$	2,417,878


(a)	Reflects operating results of Cablevision from the date of acquisition.

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



	Year Ended December 31,
	2017			2016
Operating income for reportable segments	$	841,008		$	462,809
Items excluded from operating income:
Interest expense	(1,603,132		)	(1,456,541		)
Interest income	1,921			13,811
Gain on investments, net	237,354			141,896
Loss on derivative contracts, net	(236,330		)	(53,696		)
Gain (loss) on interest rate swap contracts	5,482			(72,961		)
Loss on extinguishment of debt and write-off of deferred financing costs	(600,240		)	(127,649		)
Other income (expense), net	(13,651		)	1,186
Loss before income taxes	$	(1,367,588	)	$	(1,091,145	)

The following table presents the composition of revenue by segment:



	Year Ended December 31, 2017									Year Ended December 31, 2016
	Cablevision (a)		Cequel		Eliminations			Total		Cablevision (a)		Cequel		Total
Residential:
Pay TV	$	3,175,097	$	1,099,025	$	—		$	4,274,122	$	1,668,348	$	1,120,525	$	2,788,873
Broadband	1,649,771		958,824		—			2,608,595		817,160		834,414		1,651,574
Telephony	570,871		129,894		—			700,765		311,832		153,939		465,771
Business services and wholesale	922,691		375,522		—			1,298,213		468,632		350,909		819,541
Advertising	321,149		73,509		(2,792		)	391,866		163,678		88,371		252,049
Other	10,747		22,642		—			33,389		14,402		25,002		39,404
Total Revenue	$	6,650,326	$	2,659,416	$	(2,792	)	$	9,306,950	$	3,444,052	$	2,573,160	$	6,017,212


(a)	Reflects revenue from the Cablevision Acquisition Date.

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



	Years Ended December 31,
	2017		2016
Cablevision	$	671,417	$	298,357
Cequel	279,932		327,184
	$	951,349	$	625,541

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.

BENEFIT PLANS

12 Months Ended

Dec. 31, 2017

Retirement Benefits [Abstract]

Benefit Plans

BENEFIT PLANS

Qualified and Non-qualified Defined Benefit Plans

Retirement Plans (collectively, the "Defined Benefit Plans")

The Company sponsors a non-contributory qualified defined benefit cash balance retirement plan (the "Pension Plan") for the benefit of non-union employees of Cablevision, as well as certain employees covered by a collective bargaining agreement in Brooklyn.

The Company maintains an unfunded non-contributory non-qualified defined benefit excess cash balance plan ("Excess Cash Balance Plan") covering certain current and former employees of Cablevision who participate in the Pension Plan. The Company also maintained an additional unfunded non-contributory, non-qualified defined benefit plan ("CSC Supplemental Benefit Plan") for the benefit of certain former officers and employees of Cablevision which provided that, upon retiring on or after normal retirement age, a participant receives a benefit equal to a specified percentage of the participant's average compensation, as defined. All participants were 100% vested in the CSC Supplemental Benefit Plan. The benefits related to the CSC Supplemental Plan were paid to participants in January 2017 and the plan was terminated.

Cablevision's Pension Plan and the Excess Cash Balance Plan are frozen and no employee of Cablevision who was not already a participant could participate in the plans and no further annual Pay Credits (a certain percentage of employees' eligible pay) are made. Existing account balances under the plans continue to be credited with monthly interest in accordance with the terms of the plans.

Plan Results for Defined Benefit Plans

Summarized below is the funded status and the amounts recorded on the Company's consolidated balance sheets for all of the Company's Defined Benefit Plans at December 31, 2017 and 2016:



	December 31,
	2017			2016
Change in projected benefit obligation:
Projected benefit obligation at beginning of year	$	382,517		$	403,963
Interest cost	11,786			14,077
Actuarial loss (gain)	13,171			(11,429		)
Curtailments	6,332			3,968
Settlements	6,910			—
Benefits paid	(121,650		)	(28,062		)
Projected benefit obligation at end of year	299,066			382,517

Change in plan assets:
Fair value of plan assets at beginning of year	284,118			297,846
Actual return on plan assets, net	6,356			5,829
Employer contributions	26,944			8,505
Benefits paid	(121,650		)	(28,062		)
Fair value of plan assets at end of year	195,768			284,118
Unfunded status at end of year	$	(103,298	)	$	(98,399	)

The accumulated benefit obligation for the Company's Defined Benefit Plans aggregated $299,066 and $382,517 at December 31, 2017 and 2016.

The Company's net funded status relating to its Defined Benefit Plans at December 31, 2017 and 2016, is as follows:



	December 31,
	2017			2016
Defined Benefit Plans	$	(103,298	)	$	(98,399	)
Less: Current portion related to nonqualified plans	135			14,293
Long-term defined benefit plan obligations	$	(103,163	)	$	(84,106	)

Components of the benefit costs, recorded in other income (expense), net, for the Defined Benefit Plans for the years ended December 31, 2017 and 2016, is as follows:



	Years Ended December 31,
	2017			2016
Interest cost	$	11,786		$	6,946
Expected return on plan assets, net	(4,905		)	(3,880		)
Curtailment loss	3,137			231
Settlement loss (income) (reclassified from accumulated other comprehensive loss) (a)	1,845			(154		)
Non-operating pension costs	$	11,863		$	3,143

(a)

As a result of benefit payments to terminated or retired individuals exceeding the service and interest costs for the Pension Plan and the Excess Cash Balance Pension Plan during the year ended December 31, 2017 and during the period June 21, 2016 through December 31, 2016, the Company recognized a non-cash settlement loss that represented the acceleration of the recognition of a portion of the previously unrecognized actuarial losses recorded in accumulated other comprehensive loss on the Company’s consolidated balance sheet relating to these plans.

Plan Assumptions for Defined Benefit Plans

Weighted-average assumptions used to determine pension costs (made at the beginning of the year) and benefit obligations (made at the end of the year) for the Defined Benefit Plans are as follows:



	Benefit Costs				Benefit Obligations at December 31,
	For the Year Ended December 31, 2017		For the Period June 21, 2016 to December 31, 2016		2017		2016
Discount rate (a)	3.69	%	3.53	%	3.50	%	3.81	%
Rate of increase in future compensation levels	—	%	—	%	—	%	—	%
Expected rate of return on plan assets (Pension Plan only)	3.90	%	3.97	%	N/A		N/A


(a)	The discount rate of 3.53% for the period June 21, 2016 through December 31, 2016, represents the average of the quarterly discount rates used to remeasure the Company's projected benefit obligation and benefit costs in connection with the recognition of settlement losses discussed above.

The discount rate used by the Company in calculating the benefit costs for the Cash Balance Plan and the Excess Cash Balance Plan was determined based on the expected future benefit payments for the plans and from the Towers Watson U.S. Rate Link: 40-90 Discount Rate Model. The model was developed by examining the yields on selected highly rated corporate bonds.

The Company's expected long-term return on Pension Plan assets is based on a periodic review and modeling of the plan's asset allocation structure over a long-term horizon. Expectations of returns and risk for each asset class are the most important of the assumptions used in the review and modeling and are based on comprehensive reviews of historical data, forward looking economic outlook, and economic/financial market theory. The expected long-term rate of return was chosen as a best estimate and was determined by (a) historical real returns, net of inflation, for the asset classes covered by the investment policy, and (b) projections of inflation over the long-term period during which benefits are payable to plan participants.

Pension Plan Assets and Investment Policy

The weighted average asset allocations of the Pension Plan at December 31, 2017 and 2016 were as follows:



	Plan Assets at December 31,
	2017		2016
Asset Class:
Mutual funds	32	%	43	%
Fixed income securities	66		55
Cash equivalents and other	2		2
	100	%	100	%

The Pension Plan's investment objectives reflect an overall low risk tolerance to stock market volatility. This strategy allows for the Pension Plan to invest in portfolios that would obtain a rate of return throughout economic cycles, commensurate with the investment risk and cash flow needs of the Pension Plan. The investments held in the Pension Plan are readily marketable and can be sold to fund benefit payment obligations of the plan as they become payable.

Investment allocation decisions are formally made by the Company's Benefit Committee, which takes into account investment advice provided by its external investment consultant. The investment consultant takes into account expected long-term risk, return, correlation, and other prudent investment assumptions when recommending asset classes and investment managers to the Company's Benefit Committee. The major categories of the Pension Plan assets are cash equivalents and bonds which are marked-to-market on a daily basis. Due to the Pension Plan's significant holdings in long-term government and non-government fixed income securities, the Pension Plan's assets are subjected to interest rate risk; specifically, a rising interest rate environment. Consequently, an increase in interest rates may cause a decrease to the overall liability of the Pension Plan thus creating a hedge against rising interest rates. In addition, a portion of the Pension Plan's bond portfolio is invested in foreign debt securities where there could be foreign currency risks associated with them, as well as in non-government securities which are subject to credit risk of the bond issuer defaulting on interest and/or principal payments.

Investments at Estimated Fair Value

The fair values of the assets of the Pension Plan at December 31, 2017 by asset class are as follows:



Asset Class	Level I		Level II		Level III		Total

Mutual funds	$	61,833	$	—	$	—	$	61,833
Fixed income securities held in a portfolio:
Foreign issued corporate debt	—		10,721		—		10,721
U.S. corporate debt	—		39,992		—		39,992
Government debt	—		4,645		—		4,645
U.S. Treasury securities	—		62,601		—		62,601
Asset-backed securities	—		10,978		—		10,978
Other	—		—		—		—
Cash equivalents (a)	6,691		2,782		—		9,473
Total (b)	$	68,524	$	131,719	$	—	$	200,243


(a)	A significant portion represents an investment in a short-term investment fund that invests primarily in securities of high quality and low risk.


(b)	Excludes cash and net payables relating to the purchase of securities that were not settled as of December 31, 2017.

The fair values of the assets of the Pension Plan at December 31, 2016 by asset class are as follows:



Asset Class	Level I		Level II		Level III		Total

Mutual funds	$	121,356	$	—	$	—	$	121,356
Fixed income securities held in a portfolio:
Foreign issued corporate debt	—		13,583		—		13,583
U.S. corporate debt	—		48,046		—		48,046
Government debt	—		4,810		—		4,810
U.S. Treasury securities	—		77,285		—		77,285
Asset-backed securities	—		14,065		—		14,065
Other	—		247		—		247
Cash equivalents (a)	2,593		3,089		—		5,682
Total (b)	$	123,949	$	161,125	$	—	$	285,074


(a)	A significant portion represents an investment in a short-term investment fund that invests primarily in securities of high quality and low risk.


(b)	Excludes cash and net payables relating to the purchase of securities that were not settled as of December 31, 2016.

The fair values of mutual funds and cash equivalents were derived from quoted market prices that the Pension Plan administrator has the ability to access.

The fair values of corporate and government debt, treasury securities and asset-back securities were derived from bids received from a vendor or broker not available in an active market that the Pension Plan administrator has the ability to access.

Benefit Payments and Contributions for Defined Benefit Plans

The following benefit payments are expected to be paid during the periods indicated:



2018	$	96,482
2019	18,960
2020	14,052
2021	13,282
2022	13,792
2023-2027	69,369

The Company currently expects to contribute approximately $18,000 to the Pension Plan in 2018.

Defined Contribution Plans

The Company maintains the Cablevision 401(k) Savings Plan, a contributory qualified defined contribution plan for the benefit of non-union employees of Cablevision. Participants can contribute a percentage of eligible annual compensation and the Company will make a matching cash contribution or discretionary contribution, as defined in the plan. In addition, the Company maintains an unfunded non-qualified excess savings plan which was frozen on January 1, 2017 for which the Company provided a matching contribution similar to the Cablevision 401(k) Savings Plan. Applicable employees of the Company were eligible for an enhanced employer matching contribution, as well as a year-end employer discretionary contribution to the Cablevision 401(k) Savings Plan and the Cablevision Excess Savings Plan.

Through September 30, 2017, the Company also maintained a 401(k) plan for employees of Cequel. Cequel employees that qualified for participation were able to contribute a percentage of eligible annual compensation and the Company would make a matching cash contribution, as defined in the plan. During the fourth quarter of 2017, the Suddenlink 401(k) plan assets were transferred to the Cablevision 401(k) Savings Plan and the plan was renamed the Altice USA 401(k) Savings Plan.

The cost associated with these plans (including the enhanced employer matching and discretionary contributions on 2016) was $27,577 and $28,501 for the years ended December 31, 2017 and 2016, respectively.

ALLOWANCE FOR DOUBTFUL ACCOUNTS

12 Months Ended

Dec. 31, 2017

Receivables [Abstract]

ALLOWANCE FOR DOUBTFUL ACCOUNTS

Activity related to the Company's allowance for doubtful accounts is presented below:



	Balance at Beginning of Period		Provision for Bad Debt		Deductions/ Write-Offs and Other Charges			Balance at End of Period
Year Ended December 31, 2017
Allowance for doubtful accounts	$	11,677	$	74,183	$	(72,440	)	$	13,420

Year Ended December 31, 2016
Allowance for doubtful accounts	$	1,051	$	53,249	$	(42,623	)	$	11,677

INTERIM FINANCIAL INFORMATION

12 Months Ended

Dec. 31, 2017

Quarterly Financial Information Disclosure [Abstract]

INTERIM FINANCIAL INFORMATION

INTERIM FINANCIAL INFORMATION (Unaudited)

The following is a summary of the Company's selected quarterly financial data for the years ended December 31, 2017 and 2016:



	March 31, 2017			June 30, 2017			September 30, 2017			December 31, 2017 (a)			Total 2017
Residential:
Pay TV	$	1,083,878		$	1,071,163		$	1,069,946		$	1,049,135		$	4,274,122
Broadband	625,918			642,620			658,278			681,779			2,608,595
Telephony	180,961			178,261			172,479			169,064			700,765
Business services and wholesale	319,420			323,641			324,642			330,510			1,298,213
Advertising	83,361			97,501			89,292			121,712			391,866
Other	8,721			9,176			7,884			7,608			33,389
Revenue	2,302,259			2,322,362			2,322,521			2,359,808			9,306,950
Operating expenses	(2,052,149		)	(2,069,094		)	(2,201,946		)	(2,142,753		)	(8,465,942		)
Operating income	$	250,110		$	253,268		$	120,575		$	217,055		$	841,008
Net income (loss)	$	(76,188	)	$	(479,939	)	$	(192,434	)	$	2,243,325		$	1,494,764
Net income attributable to noncontrolling interests	(237		)	(365		)	(135		)	(850		)	(1,587		)
Net income (loss) attributable to Altice USA Inc.'s stockholders	$	(76,425	)	$	(480,304	)	$	(192,569	)	$	2,242,475		$	1,493,177
Basic and diluted net income (loss) per share attributable to Altice USA Inc.'s stockholders	$	(0.12	)	$	(0.73	)	$	(0.26	)	$	3.04		$	2.15


(a)	Pursuant to the enactment of the Tax Reform on December 22, 2017, the Company recorded a noncash deferred tax benefit of $2,332,677 to remeasure the net deferred tax liability to adjust for the reduction in the corporate federal income tax rate 35% to 21% which is effective on January 1, 2018.



	March 31, 2016			June 30, 2016			September 30, 2016			December 31, 2016			Total 2016
Residential:
Pay TV	$	279,736		$	370,122		$	1,066,019		$	1,072,996		$	2,788,873
Broadband	196,691			245,568			594,932			614,383			1,651,574
Telephony	39,735			55,855			185,834			184,347			465,771
Business services and wholesale	84,404			111,193			309,366			314,578			819,541
Advertising	20,887			29,843			90,555			110,764			252,049
Other	6,136			10,920			13,515			8,833			39,404
Revenue	627,589			823,501			2,260,221			2,305,901			6,017,212
Operating expenses	(573,329		)	(777,564		)	(2,115,955		)	(2,087,555		)	(5,554,403		)
Operating income	$	54,260		$	45,937		$	144,266		$	218,346		$	462,809
Net loss	$	(140,748	)	$	(282,129	)	$	(172,553	)	$	(236,049	)	$	(831,479	)
Net loss (income) attributable to noncontrolling interests	—			364			(256		)	(659		)	(551		)
Net loss attributable to Altice USA, Inc. stockholders	$	(140,748	)	$	(281,765	)	$	(172,809	)	$	(236,708	)	$	(832,030	)
Basic and diluted net loss per share attributable to Altice USA Inc.'s stockholders	$	(0.22	)	$	(0.43	)	$	(0.27	)	$	(0.36	)	$	(1.28	)

The Company’s previously reported statements of cash flows for the three months ended March 31, 2017, the six months ended June 30, 2017 and the nine months ended September 30, 2017 reflected distributions to stockholders of $79,617 in cash provided by operating activities. These distributions should have been reflected in financing activities.

CHANGE IN ACCOUNTING POLICIES AND ATS ACQUISITION

3 Months Ended

12 Months Ended

Mar. 31, 2018

Dec. 31, 2017

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

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	)

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, Revenue from Contracts with Customers. 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 amortization 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 periods prior to January 1, 2018, costs 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.

Acquisition of Altice Technical Services US Corp

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, including goodwill of $23,101, representing the amount previously transferred to ATS.

The adoption of ASU No. 2017-07 had no impact on the Company's consolidated balance sheet. The following table summarizes the impact of adopting ASC 606 and the impact of the ATS Acquisition on the Company's consolidated balance sheets:



	December 31, 2017									December 31, 2016
	As Reported		Impact of ASC 606		Impact of ATS Acquisition			As Adjusted		As Reported			Impact of ASC 606		As Adjusted
Cash and cash equivalents	$	273,329	$	—	$	56,519		$	329,848	$	486,792		$	—	$	486,792
Other current assets	580,231		14,068		(20,548		)	573,751		1,218,127			14,068		1,232,195
Property, plant and equipment, net	6,063,829		—		(40,003		)	6,023,826		6,597,635			—		6,597,635
Goodwill	7,996,760		—		23,101			8,019,861		7,992,700			—		7,992,700
Other assets, long-term	19,861,076		10,261		(6,541		)	19,864,796		20,178,995			10,261		20,189,256
Total assets	$	34,775,225	$	24,329	$	12,528		$	34,812,082	$	36,474,249		$	24,329	$	36,498,578
Current liabilities	2,492,983		6,978		20,401			2,520,362		3,704,933			6,978		3,711,911
Deferred tax liability	4,775,115		4,685		(10,514		)	4,769,286		7,966,815			4,685		7,971,500
Liabilities, long-term	21,779,997		—		6,394			21,786,391		22,704,512			—		22,704,512
Total liabilities	$	29,048,095	$	11,663	$	16,281		$	29,076,039	$	34,376,260		$	11,663	$	34,387,923
Redeemable equity	231,290		—		—			231,290		68,147			—		68,147
Paid-in-capital	4,642,128		—		23,101			4,665,229		3,003,554			—		3,003,554
Retained earnings (accumulated deficit)	854,824		12,666		(26,854		)	840,636		(975,978		)	12,666		(963,312		)
Total stockholders' equity	5,495,840		12,666		(3,753		)	5,504,753		2,029,842			12,666		2,042,508
Total liabilities and stockholders' equity	$	34,775,225	$	24,329	$	12,528		$	34,812,082	$	36,474,249		$	24,329	$	36,498,578

The following table summarizes the impact of adopting ASC 606 and ASU No. 2017-07 and the impact of the ATS Acquisition on the Company's consolidated statements of operations:



	Year Ended December 31, 2017
	As Reported			Impact of ASC 606			Impact of ASU No. 2017-07			Impact of ATS Acquisition			As Adjusted
Residential:
Pay TV	$	4,214,745		$	59,878		$	—		$	(501	)	$	4,274,122
Broadband	2,563,772			45,192			—			(369		)	2,608,595
Telephony	823,981			(122,981		)	—			(235		)	700,765
Business services and wholesale	1,298,817			(604		)	—			—			1,298,213
Advertising	391,866			—			—			—			391,866
Other	33,389			—			—			—			33,389
Total revenue	9,326,570			(18,515		)	—			(1,105		)	9,306,950

Programming and other direct costs	3,035,655			—			—			—			3,035,655
Other operating expenses	2,342,655			(18,515		)	(11,863		)	35,038			2,347,315
Restructuring and other expense	152,401			—			—			—			152,401
Depreciation and amortization	2,930,475			—			—			96			2,930,571
Operating income	865,384			—			11,863			(36,239		)	841,008
Other income (expense), net	(2,196,733		)	—			(11,863		)	—			(2,208,596		)
Loss before income taxes	(1,331,349		)	—			—			(36,239		)	(1,367,588		)
Income tax benefit	2,852,967			—			—			9,385			2,862,352
Net income	$	1,521,618		$	—		$	—		$	(26,854	)	$	1,494,764



	Year Ended December 31, 2016
	As Reported			Impact of ASC 606			Impact of ASU No. 2017-07			As Adjusted
Residential:
Pay TV	$	2,759,216		$	29,657		$	—		$	2,788,873
Broadband	1,617,029			34,545			—			1,651,574
Telephony	529,973			(64,202		)	—			465,771
Business services and wholesale	819,541			—			—			819,541
Advertising	252,049			—			—			252,049
Other	39,404			—			—			39,404
Total revenue	6,017,212			—			—			6,017,212

Programming and other direct costs	1,911,230			—			—			1,911,230
Other operating expenses	1,705,615			—			(3,143		)	1,702,472
Restructuring and other expense	240,395			—			—			240,395
Depreciation and amortization	1,700,306			—			—			1,700,306
Operating income	459,666			—			3,143			462,809
Other income (expense), net	(1,550,811		)	—			(3,143		)	(1,553,954		)
Loss before income taxes	(1,091,145		)	—			—			(1,091,145		)
Income tax benefit	259,666			—			—			259,666
Net loss	$	(831,479	)	$	—		$	—		$	(831,479	)

SUBSEQUENT EVENT	3 Months Ended	12 Months Ended
SUBSEQUENT EVENT	Mar. 31, 2018	Dec. 31, 2017
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.	SUBSEQUENT EVENT 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. 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, borrowings under the CVC 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 discussed in Note 1.

REVENUE AND CONTRACT ASSETS REVENUE AND CONTRACT ASSETS

3 Months Ended

Mar. 31, 2018

Revenue from Contract with Customer [Abstract]

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.

NET LOSS PER SHARE ATTRIBUTABLE TO STOCKHOLDERS	3 Months Ended
NET LOSS PER SHARE ATTRIBUTABLE TO STOCKHOLDERS	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.

CVC - DESCRIPTION OF BUSINESS, RELATED MATTERS AND BASIS OF PRESENTATION

3 Months Ended

12 Months Ended

Mar. 31, 2018

Dec. 31, 2017

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.

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 December 31, 2017, 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 had no operations of its own other than the issuance of debt prior to the contribution of Cequel on June 9, 2016 by Altice N.V. The results of operations of Cequel for the year ended December 31, 2016 have been included in the results of operations of Altice USA for the same periods, as Cequel was under common control with Altice USA.

Altice USA acquired Cablevision Systems Corporation ("Cablevision" or "Optimum") on June 21, 2016 (see discussion below) and the results of operations of Cablevision are included with the results of operations of Cequel for the year ended December 31, 2017. The year ended December 31, 2016 operating results include the operating results of Cablevision from the date of acquisition, June 21, 2016.

The accompanying combined consolidated financial statements ("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. All significant inter-company accounts and transactions have been eliminated in consolidation.

The accompanying consolidated financial statements also 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 20 for further details of the impact on the Company's historical financial statements.

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.

Acquisition of Altice Technical Services US Corp

ATS was formed to provide network construction and maintenance services and commercial and residential installations, disconnections, and maintenance. In the second quarter of 2017, the Company entered into an Independent Contractor Agreement with ATS that governs the terms of the services described above. The Company believes the services it receives from ATS will be of higher quality and at a lower cost than the Company could achieve without ATS, including for the construction of our new fiber-to-the home ("FTTH") network. The Company also entered into a Transition Services Agreement for the use of the Company's resources to provide various overhead functions to ATS, including accounting, legal and human resources and for the use of certain facilities, vehicles and technician tools during a transitional period that generally ended on December 31, 2017, although the term can be extended on a service-by-service basis. The Transition Services Agreement requires ATS to reimburse the Company for its cost to provide such services.

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 20 for the impact of the ATS Acquisition on the Company's consolidated balance sheet and statement of operations as of and for the year ended December 31, 2017. In connection with the ATS Acquisition, the Company recorded goodwill of $23,101, representing the amount previously transferred to ATS.

Initial Public Offering

In June 2017, the Company completed its initial public offering ("IPO") of 71,724,139 shares of its Class A common stock (12,068,966 shares sold by the Company and 59,655,173 shares sold by existing stockholders) at a price to the public of $30.00 per share, including the underwriters full exercise of their option to purchase 7,781,110 shares to cover overallotments. At the date of the IPO, Altice N.V. owned approximately 70.2% of the Company's issued and outstanding common stock, which represented approximately 98.2% of the voting power of the Company's outstanding 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".

In connection with the sale of its Class A common stock, the Company received proceeds of approximately $362,069, before deducting the underwriting discount and expenses directly related to the issuance of the securities of $12,998. The Company did not receive any proceeds from the sale of shares by the selling stockholders. In July 2017, the Company used approximately $350,120 of the proceeds to fund the redemption of $315,779 principal amount of 10.875% senior notes that mature in 2025 issued by CSC Holdings, an indirect wholly-owned subsidiary of the Company, and the related call premium of approximately $34,341.

The following organizational transactions were consummated prior to the IPO:


•	the Company amended and restated its certificate of incorporation to, among other things, provide for Class A common stock, Class B common stock and Class C common stock;


•	BC Partners LLP ("BCP") and Canada Pension Plan Investment Board (‘‘CPPIB and together with BCP, the‘‘Co-Investors’’) and Uppernext S.C.S.p. ("Uppernext"), an entity controlled by Mr. Patrick Drahi (founder and controlling stockholder of Altice N.V.), exchanged their indirect ownership interest in the Company for shares of the Company’s common stock;


•	Neptune Management LP (‘‘Management LP’’) redeemed its Class B units for shares of the Company’s common stock that it received from the redemption of its Class B units in Neptune Holding US LP;


•	the Company converted $525,000 aggregate principal amount of notes issued by the Company to the Co-Investors (together with accrued and unpaid interest and applicable premium) into shares of the Company’s common stock at the IPO price (see Note 9 for further details);


•	$1,225,000 aggregate principal amount of notes issued by the Company to a subsidiary of Altice N.V. (together with accrued and unpaid interest and applicable premium) was transferred to CVC 3 B.V., an indirect subsidiary of Altice N.V. ("CVC 3") and then the Company converted such notes into shares of the Company’s common stock at the IPO price (see Note 9 for further details);


•	the Co-Investors, Neptune Holding US LP, A4 S.A. (an entity controlled by the family of Mr. Drahi), and former Class B unitholders of Management LP (including Uppernext) exchanged shares of the Company’s common stock for new shares of the Company’s Class A common stock; and


•	CVC 3 and A4 S.A. exchanged shares of the Company’s common stock for new shares of the Company’s Class B common stock.