FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS - Fair Value Measurements, Recurring and Nonrecurring (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022
Assets:
Cash and cash equivalents	$ 35,041	$ 51,025	$ 70,693
Restricted cash	3,202	3,248	$ 3,611
Short-term receivable	3,201	3,223
Liabilities:
Warrant liability	9,176	0
Level 1 | Fair Value, Measurements, Recurring
Assets:
Cash and cash equivalents	35,041	51,025
Restricted cash	3,202	3,248
Short-term receivable	0	0
Liabilities:
Warrant liability	0	0
Level 2 | Fair Value, Measurements, Recurring
Assets:
Cash and cash equivalents	0	0
Restricted cash	0	0
Short-term receivable	0	0
Liabilities:
Warrant liability	0	0
Level 3 | Fair Value, Measurements, Recurring
Assets:
Cash and cash equivalents	0	0
Restricted cash	0	0
Short-term receivable	3,201	3,223
Liabilities:
Warrant liability	9,176	0
Senior secured term loans
Liabilities:
Senior secured term loans	229,760	247,204
Senior secured term loans | Level 1 | Fair Value, Measurements, Recurring
Liabilities:
Senior secured term loans	0	0
Senior secured term loans | Level 2 | Fair Value, Measurements, Recurring
Liabilities:
Senior secured term loans	181,798	200,235
Senior secured term loans | Level 3 | Fair Value, Measurements, Recurring
Liabilities:
Senior secured term loans	$ 0	$ 0