Leases (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Lessee, Lease, Description [Line Items]
Operating lease expense	$ 2,999	$ 3,239	$ 9,066	$ 8,711
Short-term lease expense	28	277	81	850
Variable lease expense	516	555	1,632	1,671
Total lease expense	$ 3,543	$ 4,071	$ 10,779	$ 11,232
Minimum
Lessee, Lease, Description [Line Items]
Remaining lease term	1 year		1 year
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease term	10 years		10 years