LEASES - Other Information Related to Leases (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Cash paid for amounts included in measurement of lease liabilities
Operating cash flows from operating leases	$ 5,990	$ 5,275	$ 11,346	$ 11,140
Operating cash flows from finance leases	91	82	171	165
Financing cash flows from finance leases	159	69	237	134
Right-of-use assets obtained in exchange for lease obligations
Operating leases	411	495	8,583	1,587
Finance leases	$ 384	$ 45	$ 406	$ 45