Leases - Supplemental cash flow information and other related information (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Leases [Abstract]
Operating cash flows from operating leases	$ 30,282	$ 24,115
Operating cash flows from finance leases	795	900
Financing cash flows from finance leases	2,262	1,608
ROU assets obtained in exchange for new lease obligations - Operating leases	22,352	13,085
ROU assets obtained in exchange for new lease obligations - Finance leases	$ 0	$ 4,510
Weighted average remaining term - Operating leases	7 years 10 months 24 days	8 years 1 month 6 days
Weighted average remaining lease term - Finance leases	8 years 6 months	9 years 2 months 12 days
Weighted average discount rate - Operating leases	2.80%	3.20%
Weighted average discount rate - Finance leases	5.00%	5.00%