INCOME TAXES - Net Operating Loss Carryforwards (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)
U.S. federal
Operating Loss Carryforwards
Net operating loss carryforwards	$ 279,038
Tax credit carryforwards	16,799
Operating loss carryforward, expiring through 2037	18,606
Operating loss carryforward, indefinite	260,433
State
Operating Loss Carryforwards
Net operating loss carryforwards	203,159
Danish
Operating Loss Carryforwards
Net operating loss carryforwards	$ 58