EQUITY METHOD INVESTMENTS - Summarized Financial Information of Equity Method Investments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Schedule of Equity Method Investments [Line Items]
Operating income	$ 38,400	$ 45,801	$ 103,118	$ 105,477	[1]
Net income	43,131	49,422	119,098	202,259	[1]
PHP
Schedule of Equity Method Investments [Line Items]
Revenues	99,923	100,114	291,859	296,779
Operating income	65,549	69,851	185,862	190,620
Net income	66,630	69,926	190,662	190,446
Breviloba, LLC
Schedule of Equity Method Investments [Line Items]
Revenues	51,002	53,120	143,544	151,732
Operating income	25,170	22,205	69,666	73,877
Net income	25,223	22,060	70,086	73,711
GCX
Schedule of Equity Method Investments [Line Items]
Revenues	91,901	91,800	272,509	272,542
Operating income	68,531	70,870	200,004	199,130
Net income	$ 68,327	$ 70,742	$ 205,818	$ 198,732

[1] The results of the legacy ALTM business are not included in the Company’s consolidated financials prior to February 22, 2022. Refer to the basis of presentation in Note 1—Description of the Organization and Summary of Significant Accounting Policies in the Notes to Condensed Consolidated Financial Statements in this Form 10-Q for further information.