FAIR VALUE MEASUREMENTS (Details) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) numberOfConsecutiveCalendarMonth shares	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Jun. 12, 2019 USD ($)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Unrealized derivative instrument loss | $	$ (82,114)	$ 36,080	$ 8,470
Embedded derivative liability | $	$ 56,895	$ 139,009		$ 94,459
Number of Preferred Units expected to be redeemed before exercise of exchange option (in shares) | shares	250
Expected timing until exercise of exchange option	4 years 5 months 12 days
Level 3 | Altus Midstream Company’s Imputed Interest Rate | Minimum
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Embedded derivative liability, measurement input | numberOfConsecutiveCalendarMonth	0.0554
Level 3 | Altus Midstream Company’s Imputed Interest Rate | Maximum
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Embedded derivative liability, measurement input | numberOfConsecutiveCalendarMonth	0.1121
Level 3 | Interest Rate Volatility
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Embedded derivative liability, measurement input	0.4008