Lease Accounting - Lessee, Minimum Lease Payments (Details) $ in Thousands	Sep. 30, 2019 USD ($)
Operating Lease Payments
2019 (excluding 9 months ended September 30, 2019)	$ 5,399
2020	18,819
2021	11,969
2022	9,319
2023	7,825
Thereafter	18,949
Total future minimum lease payments	72,280
Less: Interest	(10,253)
Total future minimum lease payments less interest	62,027
Finance Lease Payments
2019 (excluding 9 months ended September 30, 2019)	4,516
2020	17,337
2021	16,048
2022	10,825
2023	7,503
Thereafter	9,588
Total future minimum lease payments	65,817
Less: Interest	(8,489)
Total future minimum lease payments less interest	57,328
Total Lease Payments
2019 (excluding 9 months ended September 30, 2019)	9,915
2020	36,156
2021	28,017
2022	20,144
2023	15,328
Thereafter	28,537
Total future minimum lease payments	138,097
Less: Interest	(18,742)
Total future minimum lease payments less interest	119,355
Accounts payable and accrued expenses
Operating Lease Payments
Total future minimum lease payments less interest	178
Finance Lease Payments
Total future minimum lease payments less interest	70
Total Lease Payments
Total future minimum lease payments less interest	248
Operating lease obligations
Operating Lease Payments
Total future minimum lease payments less interest	61,849
Finance Lease Payments
Total future minimum lease payments less interest	0
Total Lease Payments
Total future minimum lease payments less interest	61,849
Finance lease obligations
Operating Lease Payments
Total future minimum lease payments less interest	0
Finance Lease Payments
Total future minimum lease payments less interest	57,258
Total Lease Payments
Total future minimum lease payments less interest	$ 57,258