LEASES AND RELATED PARTY LEASES - Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Lessee, Lease, Description [Line Items]
ROU assets	$ 81,644	$ 84,543
Current lease liabilities	14,300	14,775
Non-current lease liabilities	87,806	90,329
Total lease liabilities	$ 102,106	$ 105,104
Leased facilities
Lessee, Lease, Description [Line Items]
Weighted average remaining lease term (in years)	10 years 9 months 18 days	10 years 4 months 24 days
Weighted average discount rate	5.20%	5.10%
Leased vehicles
Lessee, Lease, Description [Line Items]
Weighted average remaining lease term (in years)	2 years 1 month 6 days	2 years 1 month 6 days
Weighted average discount rate	2.70%	2.60%