Leases - Summary of Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Operating Leased Assets [Line Items]
Operating lease cost	$ 3,237	$ 2,946	$ 6,469	$ 5,495
Finance lease cost	20	0	39	0
Short-term lease cost	247	668	473	1,489
Cost of revenue
Operating Leased Assets [Line Items]
Operating lease cost	2,144	2,091	4,282	3,785
Finance lease, right-of-use asset, amortization	17	0	34	0
Finance lease, interest expense	3	0	5	0
Operating expense
Operating Leased Assets [Line Items]
Operating lease cost	$ 1,093	$ 855	$ 2,187	$ 1,710