LEASES - Cash Flow Classifications (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Leases [Abstract]
Operating cash flows used for operating leases	$ 900	$ 933	$ 1,803	$ 1,881
Right-of-use assets obtained in exchange for lease obligations:	$ 0	$ 0	$ 20	$ 0