Leases - Lease Obligations (Details) $ in Thousands	Mar. 31, 2017 USD ($)
Operating Leases, Future Minimum Payments Receivable [Abstract]
2017	$ 151,136
2018	153,392
2019	144,089
2020	130,749
2021	116,857
Thereafter	627,453
Total	1,323,676
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2017	2,803
2018	3,756
2019	3,776
2020	3,669
2021	3,744
Thereafter	185,621
Total	$ 203,369