Operating Leases - Other Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Supplemental disclosure of cash flow information
Cash paid for operating lease liabilities	$ 2,835	$ 3,013
Operating lease right-of-use assets obtained in exchange for new lease liabilities (includes new leases or modifications of existing leases)	$ 4,868	$ 395