Leases - Supplemental Cash Flow Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Leases
Operating cash flows from operating leases	$ 227,451
Operating cash flows from finance leases	10,800
Financing cash flows from finance leases	34,358
Operating leases	118,381
Finance leases	187,339
Right-of-use assets and liabilities recognized upon adoption of ASC 842	$ 733,584