LEASES - Direct Financing Leases (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Leases [Abstract]
Interest income on lease receivable	$ 3,566	$ 669
Interest income on deferred fees and costs	94	57
Total direct financing lease income	3,660	$ 726
Leasing receivables
Lease receivables	229,552		$ 217,076
Unearned income	(30,252)		(28,446)
Deferred fees and costs	2,453		1,962
Net investment in direct financing leases	$ 201,753		$ 190,592