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
Lease, Cost [Abstract]
Operating lease cost	$ 762	$ 466	$ 2,207	$ 1,802
Short-term lease cost	14	221	42	266
Variable lease cost	180	103	376	741
Total lease cost	956	790	2,625	2,809
Income from subleases	(185)	(189)	(577)	(650)
Net lease cost	$ 771	$ 601	$ 2,048	$ 2,159