LEASES - Minimum Future Lease Payments to be Received (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Leases [Abstract]
Remaining in 2020	$ 21,770
Operating lease, payment to be received, year one	80,291	$ 71,067
Operating lease, payment to be received, year two	64,172	58,337
Operating lease, payment to be received, year three	47,661	42,274
Operating lease, payment to be received, year four	30,874	28,628
Operating lease, payment to be received, after year four	12,751
Operating lease, payment to be received, year five		14,450
Operating lease, payment to be received, after year five		2,320
Total lease payments	$ 257,519	$ 217,076