INCOME TAXES - Operating loss carryforward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Income taxes
Deferred tax expense	$ 0	$ 0
Net operating loss carryforwards	1,300,000
Net operating loss carryforward subject expiration in 2037	$ 92,600
Carryforward period of NOLs that will expire in 2037	20 years
Net operating carryforward not subject to expiration	$ 729,500
Valuation allowance	425,019	425,005
Unrecognized tax benefits	0	0
Interest or penalties recognized in the statement of financial position	0	$ 0
Maximum
Income taxes
Decrease in valuation allowance	$ 100