Leases (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Leases [Abstract]
Weighted average remaining lease term for operating leases	6 years 7 months 6 days		6 years 7 months 6 days
Weighted average remaining lease term for finance leases	4 years 2 months 12 days		4 years 2 months 12 days
Weighted average discount rate for operating leases	4.00%		4.00%
Weighted average discount rate for finance leases	3.80%		3.80%
Operating Lease Expense [Abstract]
Operating lease cost	$ 12,400	$ 12,869	$ 25,215	$ 26,005
Variable lease cost	1,656	410	3,024	1,384
Short-term lease cost	238	95	577	140
Sublease income	(1,828)	(1,058)	(3,812)	(2,189)
Finance Lease Expense [Abstract]
Amortization of right-of-use assets	606	0	1,217	0
Interest on lease liabilities	83	0	171	0
Total lease expense	13,155	$ 12,316	26,392	25,340
Supplemental Cash Flow Information Related to Leases [Abstract]
Operating cash outflow from operating leases			27,470	25,955
Operating cash outflow from finance leases			173	0
Financing cash outflow from finance leases			956	0
Right-of-use assets obtained in exchange for operating lease obligations			13,729	31,178
Right-of-use assets obtained in exchange for finance lease obligations			59	$ 0
Maturities of Operating Lease Liabilities [Abstract]
2021	24,079		24,079
2022	34,753		34,753
2023	24,074		24,074
2024	18,965		18,965
2025	14,237		14,237
Thereafter	41,227		41,227
Total	157,335		157,335
Less: Finance charges	19,479		19,479
Total principal liability	137,856		137,856
Maturities of Financing Lease Liabilities [Abstract]
2021	1,109		1,109
2022	2,230		2,230
2023	2,148		2,148
2024	2,035		2,035
2025	1,436		1,436
Thereafter	262		262
Total	9,220		9,220
Less: Finance charges	722		722
Total principal liability	8,498		8,498
Additional lease liabilities not yet commenced	$ 3,600		$ 3,600