Leases - Summary of Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating Leased Assets [Line Items]
Operating lease cost	$ 3,232	$ 2,548
Finance lease, right-of-use asset, amortization	17	0
Finance lease cost	20	0
Short-term lease cost	226	821
Cost of revenue
Operating Leased Assets [Line Items]
Operating lease cost	2,138	1,693
Finance lease, interest expense	3	0
Operating expense
Operating Leased Assets [Line Items]
Operating lease cost	$ 1,094	$ 855