Leases - Supplemental Cash Flows and Terms (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Leases [Abstract]
Operating cash flows used for finance leases	$ 63	$ 70
Operating cash flows used for operating leases	552	492
Financing cash flows used for finance leases	$ 184	$ 173
Weighted average remaining lease term-finance leases (months)	83 months	95 months
Weighted average remaining lease term-operating leases (months)	296 months	306 months
Weighted average discount rate-finance leases	4.35%	4.37%
Weighted average discount rate-operating leases	6.44%	6.43%