Leases - Lease Maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Operating Leases
2021	$ 124,108
2022	117,698
2023	109,125
2024	81,696
2025	72,123
Thereafter	368,666
Total lease payments	873,416
Less: Interest	(206,863)
Present value of lease liabilities	666,553	$ 698,617
Finance Leases
2021	62,501
2022	23,822
2023	12,789
2024	12,529
2025	12,566
Thereafter	395,007
Total lease payments	519,214
Less: Interest	(305,849)
Present value of lease liabilities	$ 213,365	$ 230,258
Future minimum lease payments under noncancelable operating leases
2019			$ 67,682
2020			64,237
2021			56,142
2022			52,759
2023			52,522
Thereafter			383,974
Total			$ 677,316