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AFFILIATE AND RELATED PARTY TRANSACTIONS - Amounts Due From and Due to Related Parties (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Related Party Transaction [Line Items]
Due from Related Parties, Current	$ 421		$ 572
Due to affiliates, current	30,790		20,857
Share based compensation expense	(2,623)	$ 40,532
Related party expense	7,240	7,075
Stock options \| 2017 LTIP
Related Party Transaction [Line Items]
Share based compensation expense	$ (5,585)	$ 22,497
Stock options \| 2017 LTIP \| Tranche One
Related Party Transaction [Line Items]
Award vesting percentage	33.00%
CSC Holdings
Related Party Transaction [Line Items]
Due from Related Parties, Current	$ 421		572
Due to affiliates, current	30,790		20,857
Dividends, Cash	(83)
Affiliates
Related Party Transaction [Line Items]
Due from Related Parties, Current	421		572
Due to affiliates, current	30,790		20,857
Affiliates \| Altice Management Americas
Related Party Transaction [Line Items]
Due from Related Parties, Current	421		529
Affiliates \| Other Related Party
Related Party Transaction [Line Items]
Due from Related Parties, Current	0		43
Due to affiliates, current	1,668		1,646
Affiliates \| Altice Management International
Related Party Transaction [Line Items]
Due to affiliates, current	$ 29,122		$ 19,211