INCOME TAXES - Carryforwards (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2017
Income taxes
Increase (decrease) in fair value of CPR	$ 33,100	$ (1,600)
Deferred tax assets related to net operating loss carryforwards	100,402	76,198
Net operating loss that can be carried forward indefinitely	157,200
Deferred tax assets related to net operating loss that can be carried forward indefinitely	33,000
Net operating loss carryforward that expire in 2027 to 2035			$ 265,900
Deferred tax assets related to net operating loss carryforwards that expire in 2027 to 2035			$ 55,800
Unrecognized Tax Benefits	4,900	4,900
Unrecognized tax benefits that would impact effective tax rate	4,700	$ 4,700
State
Income taxes
Net operating loss carryforwards	812,800
Deferred tax assets related to net operating loss carryforwards	16,100
Utilization of net operating loss carryforwards subject to Separate Return Limitation Year	89,000
Deferred tax assets related to utilization of net operating loss carryforwards subject to Separate Return Limitation Year	5,900
Tax credit carryforwards	6,100
Deferred tax assets related to tax credit carryforwards	4,900
Utilization of tax credit carryforwards subject to Separate Return Limitation Year	3,400
Deferred tax assets related to utilization of tax credit carryforwards subject to Separate Return Limitation Year	2,700
Federal
Income taxes
Net operating loss carryforwards	423,100
Deferred tax assets related to net operating loss carryforwards	88,900
Federal | ETFL
Income taxes
Net operating loss carryforwards	600
Deferred tax assets related to net operating loss carryforwards	$ 100