Lease Disclosures - Future Minimum Lease Payments Under Noncancelable Leases as Lessee (Details) $ in Thousands	Dec. 31, 2019 USD ($)
Finance Leases
2020	$ 19,800
2021	16,400
2022	14,700
2023	11,600
2024	9,400
Thereafter	55,700
Total minimum lease payments	127,600
Less: interest/imputed interest	(37,300)
Total obligations	90,300
Less: current portion	12,900
Long-term lease obligations	77,393
Operating Leases
2020	97,400
2021	81,100
2022	73,400
2023	60,600
2024	54,900
Thereafter	173,000
Total minimum lease payments	540,400
Less: interest/imputed interest	(108,600)
Total obligations	431,800
Less: current portion	72,815
Long-term lease obligations	$ 359,025