Leases - Components of Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Lease, Cost [Abstract]
Operating lease cost	$ 1,479	$ 1,394	$ 2,918	$ 2,749
Short-term lease cost	269	124	436	253
Variable lease cost	(603)	116	(531)	262
Total lease cost	$ 1,145	$ 1,634	2,823	3,264
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases			$ 3,243	$ 2,793
Weighted-average remaining lease term — operating leases	5 years 2 months 12 days	5 years 1 month 6 days	5 years 2 months 12 days	5 years 1 month 6 days
Weighted-average discount rate — operating leases	4.20%	4.90%	4.20%	4.90%