Leases - Lease Cost and Other Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Leases [Abstract]
Operating lease expense	$ 3,035	$ 3,018	$ 9,072	$ 8,948
Short-term lease expense	661	657	2,030	2,219
Total lease expense	$ 3,696	$ 3,675	11,102	11,167
Cash paid for amounts included in the measurement of operating lease liabilities			9,179	8,597
ROU assets obtained in exchange for operating lease obligations			$ (10,465)	$ 80,581
Weighted-average remaining lease term (years)	9 years 6 months	11 years	9 years 6 months	11 years
Weighted-average discount rate	4.82%	4.97%	4.82%	4.97%