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Right-of-Use Asset and Lease Liabilities - Supplemental Cash Flow and Other Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$ 4,535	$ 3,944
Financing cash flows from finance leases	161	0
Lease liabilities	$ 4,696	$ 3,944
Weighted average remaining lease term (in years)
Operating leases	3 years 1 month 20 days	3 years 7 months 24 days
Finance leases	2 years 6 months 21 days		0 years
Weighted average discount rate
Operating leases	4.77%	4.99%
Finance leases	4.00%	0.00%

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