Leases - Supplemental Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Supplemental Cash Flows Information:
Operating cash flows from operating leases	$ 6,810	$ 6,718
Operating cash flows from finance leases	110	49
Financing cash flows from finance leases	329	200
ROU assets obtained in exchange for lease obligations:
Operating leases	3,013	3,784
Finance leases	$ 89	$ 440
Weighted-average remaining lease term (in years):
Operating leases	4 years 7 months 6 days		4 years 8 months 12 days
Finance leases	12 years 3 months 18 days		12 years 6 months
Weighted-average discount rate:
Operating leases	3.30%		3.40%
Finance leases	2.80%		2.80%