Leases - Components of Lease Expense and Other Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Lease cost:
Operating lease cost	$ 6,773	$ 5,899
Short-term lease cost	1,834	3,444
Sublease income	(158)	(128)
Total lease cost	8,449	9,215
Operating cash flows for operating leases	6,817	6,059
Right-of-use lease assets obtained in exchange for lease obligations, Operating leases	$ 25,161	4,111
Gain on sale and leaseback transactions, net		$ 207
Weighted-average remaining lease term, Operating leases	5 years 4 months 24 days	4 years 6 months
Weighted-average discount rate, Operating leases	4.65%	5.46%