Leases - Other Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases	$ 5,821	$ 4,949	$ 16,763	$ 14,501
Operating cash flows for finance leases	54	64	161	207
Financing cash flows for finance leases	$ 532	$ 606	$ 1,573	$ 1,998