Leases (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Leases [Abstract]
Weighted average remaining lease term for operating leases	6 years 7 months 6 days
Weighted average remaining lease term for finance leases	4 years 6 months
Weighted average discount rate for operating leases	4.10%
Weighted average discount rate for finance leases	3.80%
Operating Lease Expense [Abstract]
Operating lease cost	$ 12,815	$ 13,136
Variable lease cost	1,368	974
Short-term lease cost	339	45
Sublease income	(1,984)	(1,131)
Finance Lease Expense [Abstract]
Amortization of right-of-use assets	611	0
Interest on lease liabilities	88	0
Total lease expense	13,237	13,024
Supplemental Cash Flow Information Related to Leases [Abstract]
Operating cash outflow from operating leases	14,149	13,367
Operating cash outflow from finance leases	89	0
Financing cash outflow from finance leases	483	0
Right-of-use assets obtained in exchange for operating lease obligations	10,891	21,822
Right-of-use assets obtained in exchange for finance lease obligations	49	$ 0
Maturities of Operating Lease Liabilities [Abstract]
2021	35,534
2022	34,437
2023	23,875
2024	18,976
2025	14,298
Thereafter	41,344
Total	168,464
Less: Finance charges	21,060
Total principal liability	147,404
Maturities of Financing Lease Liabilities [Abstract]
2021	1,661
2022	2,226
2023	2,144
2024	2,033
2025	1,436
Thereafter	260
Total	9,760
Less: Finance charges	805
Total principal liability	8,955
Additional lease liabilities not yet commenced	$ 300