Leases - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2020 USD ($) property	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Leases [Abstract]
Number of operating leases | property	15
Operating lease expense	$ 1.3	$ 1.4
Operating lease rent expense			$ 1.4
Weighted average remaining lease term on operating leases	26 years 7 months 6 days	27 years 3 months 18 days
Weighted average discount rate for operating leases	3.80%	3.79%