Leases - Lease Obligations (Details) $ in Thousands	Dec. 31, 2016 USD ($)
Operating Leases, Future Minimum Payments Receivable [Abstract]
2017	$ 152,464
2018	147,025
2019	135,796
2020	122,071
2021	109,383
Thereafter	591,541
Total	1,258,280
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2017	3,737
2018	3,756
2019	3,776
2020	3,669
2021	3,744
Thereafter	185,621
Total	$ 204,303