INCOME TAXES - Deferred Income Taxes - Components (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets:
Provision for accrued expenses	$ 1,168	$ 3,257
Leasing	21,263	25,213
Net operating loss carryforwards	47,463	59,302
Capitalized research and experimentation	30,396	17,843
Non-cash compensation expense	28,126	30,451
Intangible assets	11,379	10,240
Interest	21,295	30,054
Equity Investment	4,561	0
Tax credits	15,385	16,174
Other	95	104
Total gross deferred tax assets	181,131	192,638
Less: valuation allowance	(162,504)	(145,401)	$ (6,039)	$ (5,802)
Total deferred tax assets, net of the valuation allowance	18,627	47,237
Deferred tax liabilities:
Leasing	(18,329)	(21,445)
Property and equipment	(1,563)	(6,227)
Equity investment	0	(25,756)
Other	(826)	(592)
Total gross deferred tax liabilities	(20,718)	(54,020)
Net deferred tax liabilities	(2,091)	$ (6,783)
Federal
Deferred tax liabilities:
Operating loss carryforwards	139,000
State
Deferred tax liabilities:
State operating loss carryforwards	$ 466,400