Leases - Supplemental Noncash Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Leases [Abstract]
Operating cash flows from operating leases	$ 13,149	$ 60,352
Operating cash flows from finance leases	674	3,196
Financing cash flows from finance leases	$ 7,935	$ 8,504