LEASES - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Lessee, Lease, Description [Line Items]
Tenant income	$ 0.6	$ 0.5
Operating lease weighted average discount rate	4.91%
Operating lease cost	$ 0.8	0.9
Operating cash outflows from operating leases	$ 0.7	$ 0.8
Operating lease weighted average remaining lease term	28 years 2 months 12 days
Minimum
Lessee, Lease, Description [Line Items]
Lease remaining term	1 year
Maximum
Lessee, Lease, Description [Line Items]
Lease remaining term	77 years