Leases (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Leases [Abstract]
Weighted average remaining lease term for operating leases	6 years 8 months 12 days		6 years 8 months 12 days
Weighted average remaining lease term for finance leases	4 years		4 years
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	$ 12,193	$ 13,038	$ 37,408	$ 39,043
Variable lease cost	1,121	678	4,145	2,062
Short-term lease cost	13	118	590	258
Sublease income	(1,352)	(1,075)	(5,164)	(3,264)
Finance Lease Expense [Abstract]
Amortization of right-of-use assets	594	0	1,811	0
Interest on lease liabilities	77	0	248	0
Total lease expense	12,646	$ 12,759	39,038	38,099
Supplemental Cash Flow Information Related to Leases [Abstract]
Operating cash outflow from operating leases			40,072	40,865
Operating cash outflow from finance leases			250	0
Financing cash outflow from finance leases			1,409	0
Right-of-use assets obtained in exchange for operating lease obligations			19,120	62,514
Right-of-use assets obtained in exchange for finance lease obligations			59	$ 0
Maturities of Operating Lease Liabilities [Abstract]
2021	11,911		11,911
2022	35,502		35,502
2023	24,955		24,955
2024	19,610		19,610
2025	14,725		14,725
Thereafter	41,327		41,327
Total	148,030		148,030
Less: Finance charges	18,241		18,241
Total principal liability	129,789		129,789
Maturities of Financing Lease Liabilities [Abstract]
2021	535		535
2022	2,150		2,150
2023	2,069		2,069
2024	1,958		1,958
2025	1,385		1,385
Thereafter	262		262
Total	8,359		8,359
Less: Finance charges	622		622
Total principal liability	7,737		7,737
Additional lease liabilities not yet commenced	$ 100		$ 100