Leases - Components of ROU Assets and Lease Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Leases [Abstract]
Operating leases, ROU assets	$ 284,255
Finance leases, ROU assets	874
Total ROU assets	285,129
Operating leases, liabilities	308,060
Finance leases, liabilities	1,789
Lease liabilities	$ 309,849	$ 3,125