Leases - Summary of Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Operating Leased Assets [Line Items]
Operating lease cost	$ 4,127	$ 3,210	$ 11,545	$ 9,679
Total finance lease cost	160	19	386	58
Short-term lease cost	430	218	1,156	712
Cost of revenue
Operating Leased Assets [Line Items]
Operating lease cost	2,400	2,123	7,105	6,405
Finance lease, right-of-use asset, amortization	139	2	335	7
Finance lease, interest expense	21	17	51	51
Operating expenses
Operating Leased Assets [Line Items]
Operating lease cost	$ 1,727	$ 1,087	$ 4,440	$ 3,274