DERIVATIVE INSTRUMENTS AND PRICE RISK MANAGEMENT - Gains/Losses on Derivatives (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Cash Received (Paid) on Settled Derivatives	$ (165,823)	$ 188,264	$ 44,377
Non-Cash Mark-to-Market Gain (Loss) on Derivatives	(312,370)	39,878	(173,214)
Gain (Loss) on Commodity Derivatives, Net	$ (478,193)	$ 228,141	$ (128,837)