Leases (Other Information) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Operating Leases:
ROU assets recorded under operating leases	$ 220,865
Accumulated amortization associated with operating leases	(34,647)
Total operating leases ROU assets, net	186,218
Liabilities recorded under operating leases (current)	36,108
Liabilities recorded under operating leases (non-current)	151,523
Total operating leases liabilities	187,631
Finance Leases:
ROU assets recorded under finance leases	19,606
Accumulated depreciation associated with finance leases	(7,551)
Total finance leases ROU assets, net	12,055
Total finance leases liabilities	11,788
Operating Lease Costs:
Fixed lease expense	57,450
Variable lease expense	6,492
Total operating lease expense	63,942
Finance Lease Costs:
Depreciation of finance lease ROU assets	4,729
Interest on lease liabilities	352
Total finance lease expense	$ 5,081