Leases - Supplemental Cash Flows and Terms (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Leases [Abstract]
Operating cash flows used for finance leases	$ 184	$ 208
Operating cash flows used for operating leases	2,028	1,552
Financing cash flows used for finance leases	$ 560	$ 526
Weighted average remaining lease term-finance leases (months)	77 months	89 months
Weighted average remaining lease term-operating leases (months)	292 months	300 months
Weighted average discount rate-finance leases	4.33%	4.35%
Weighted average discount rate-operating leases	6.43%	6.43%