Leases (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021 USD ($) option	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($) option	Jun. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)
Lessee, Lease, Description [Line Items]
Options for renewal | option	1		1
Assets and Liabilities, Lessee [Abstract]
Total right-of-use assets - net	$ 104,669		$ 104,669		$ 106,586
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Other noncurrent liabilities		Other noncurrent liabilities		Other noncurrent liabilities
Current lease liabilities	$ 16,368		$ 16,368		$ 16,721
Noncurrent lease liabilities	91,950		91,950		94,250
Total lease liabilities	108,318		108,318		110,971
Lease, Cost [Abstract]
Operating lease cost	7,061	$ 5,986	14,496	$ 12,314
Variable lease cost	594	313	1,173	954
Total lease expense	7,655	$ 6,299	15,669	13,268
Cash paid for amounts included in the measurement of operating lease liabilities			13,646	12,225
Right-of-use assets obtained in exchange for new operating lease liabilities			6,179	$ 34,298
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
2021 (excluding the six months ended June 30, 2021)	9,525		9,525
2022	18,061		18,061		19,717
2023	16,072		16,072		17,014
2024	12,902		12,902		13,662
2025	11,669		11,669		11,681
Thereafter	58,104		58,104
2025					11,141
Thereafter					57,570
Total lease payments	126,333		126,333		130,785
Less: Imputed interest	$ (18,015)		$ (18,015)		$ (19,814)
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accrued expenses		Accrued expenses		Accrued expenses
Building
Assets and Liabilities, Lessee [Abstract]
Total right-of-use assets - net	$ 98,716		$ 98,716		$ 100,775
Equipment
Assets and Liabilities, Lessee [Abstract]
Total right-of-use assets - net	$ 5,953		$ 5,953		$ 5,811
Building and Equipment
Lease, Cost [Abstract]
Weighted-average remaining lease term (years): Operating leases	9 years 25 days		9 years 25 days		9 years 5 months 4 days
Weighted-average discount rate: Operating leases	3.42%		3.42%		3.51%
Vehicles
Lease, Cost [Abstract]
Weighted-average remaining lease term (years): Operating leases	2 years 2 months 26 days		2 years 2 months 26 days		2 years 3 days
Weighted-average discount rate: Operating leases	1.48%		1.48%		2.05%