LEASES - Components of Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Leases [Abstract]
Operating lease cost	$ 1,837	$ 2,311	$ 4,030	$ 5,037
Finance lease cost:
Amortization of right-of-use assets	2,017	2,120	4,044	4,431
Interest on lease liabilities	206	353	435	606
Other lease costs and income:
Variable lease costs	2,195	2,188	5,201	4,695
Finance lease right-of-use asset impairment charges	0	3,063	0	3,063
Sublease income	(1,544)	(1,410)	(3,088)	(3,250)
Cost of revenues
Lessee, Lease, Description
Lease, cost	1,437	1,523	3,053	3,129
Selling, general and administrative
Lessee, Lease, Description
Lease, cost	3,020	3,632	7,032	7,676
Research and development
Lessee, Lease, Description
Lease, cost	$ 48	$ 54	$ 102	$ 108