Leases (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Lessee, Lease, Description [Line Items]
Operating Lease, Payments	$ 14,213	$ 15,137
Operating Lease, Cost	14,600	15,087
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation	49,000		$ 44,000
Operating Lease, Right of Use Assets, Current	1,065		1,191
Operating Lease, Right-of-Use Asset	144,115		122,464
Finance Lease, Right-of-Use Asset	62,948		66,001
Leased Assets	208,128		189,656
Operating Lease, Liability, Current	32,341		29,745
Finance Lease, Liability, Current	27,705		26,949
Operating Lease, Liability	120,010		99,999
Finance Lease, Liability	44,791		47,835
Lease Liability	224,847		$ 204,528
Finance Lease, Right-of-Use Asset, Amortization	6,077	4,447
Finance Lease, Interest Expense	833	752
Variable Lease, Cost	12,798	11,451
Lease, Cost	34,308	31,737
Finance Lease, Interest Payment on Liability	833	752
Finance Lease, Principal Payments	6,642	3,112
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability	4,627	15,272
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 15,999	$ 11,116