Leases (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020 USD ($) option	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($) option	Jun. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Options for renewal | option	1		1
Assets and Liabilities, Lessee [Abstract]
Total right-of-use assets - net	$ 108,083		$ 108,083		$ 82,374
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:AccruedLiabilitiesCurrent		us-gaap:AccruedLiabilitiesCurrent		us-gaap:AccruedLiabilitiesCurrent
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesNoncurrent		us-gaap:OtherLiabilitiesNoncurrent		us-gaap:OtherLiabilitiesNoncurrent
Current lease liabilities	$ 16,584		$ 16,584		$ 15,235
Noncurrent lease liabilities	94,503		94,503		69,928
Total lease liabilities	111,087		111,087		85,163
Lease, Cost [Abstract]
Operating lease cost	5,986	$ 6,195	12,314	$ 11,570
Variable lease cost	313	625	954	1,218
Total lease expense	6,299	$ 6,820	13,268	12,788
Cash paid for amounts included in the measurement of operating lease liabilities			12,225	6,071
Right-of-use assets obtained in exchange for new operating lease liabilities			34,298	$ 4,180
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
2020 (excluding the six months ended June 30, 2020)	9,941		9,941
2021	17,794		17,794		18,449
2022	15,372		15,372		15,070
2023	13,245		13,245		10,647
2024	11,001		11,001		8,894
Thereafter	66,503		66,503
2024					7,037
Thereafter					44,284
Total lease payments	133,856		133,856		104,381
Less: Imputed interest	(22,769)		(22,769)		(19,218)
Legally binding minimum lease payments for leases signed but not yet commenced	200		200
Building
Assets and Liabilities, Lessee [Abstract]
Total right-of-use assets - net	101,881		101,881		75,381
Equipment
Assets and Liabilities, Lessee [Abstract]
Total right-of-use assets - net	$ 6,202		$ 6,202		$ 6,993
Building and Equipment
Lease, Cost [Abstract]
Weighted-average remaining lease term (years): Operating leases	9 years 9 months 18 days		9 years 9 months 18 days		9 years 7 months 9 days
Weighted-average discount rate: Operating leases	3.60%		3.60%		4.08%
Vehicles
Lease, Cost [Abstract]
Weighted-average remaining lease term (years): Operating leases	1 year 11 months 23 days		1 year 11 months 23 days		1 year 11 months 1 day
Weighted-average discount rate: Operating leases	2.64%		2.64%		2.99%