Leases - Summary of Components of Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Leases [Abstract]
Operating lease cost	$ 3,836	$ 3,288	$ 11,088	$ 8,321
Short-term lease costs	301	323	815	998
Variable lease costs	1,181	894	3,471	2,407
Total lease costs	$ 5,318	$ 4,505	$ 15,374	$ 11,726