Lease Accounting - Other Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Leases [Abstract]
Operating cash flows from operating leases	$ 5,222	$ 5,100
ROU assets obtained in exchange for new operating lease liabilities	$ 1,541	$ 443
Weighted-average remaining lease term for operating leases	7 years 6 months	7 years 10 months 24 days
Weighted-average discount rate for operating leases	3.00%	3.20%