Leases - Summary of Lease Costs and Activity (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2020
Lease Cost
Operating lease cost	$ 1,308	$ 4,075
Short-term lease cost	669	2,187
Variable lease cost	433	1,399
Sublease income	(67)	(404)
Net lease cost	2,343	7,257
Operating cash flows from operating leases	$ 1,320	4,146
Right-of-use assets obtained in exchange for operating lease liabilities		$ 521