Leases - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Leases
Operating cash flows from operating leases	$ 17,656	$ 81,346
Operating cash flows from finance leases	5,813	1,195
Financing cash flows from finance leases	15,424	6,055
Operating leases	$ 7,882	62,150
Right-of-use assets and liabilities recognized upon adoption of ASC 842		$ 733,584