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Leases - Operating Leases (Details)
$ in Thousands
Jun. 30, 2018
USD ($)
Leases [Abstract]  
2018 (6 months remaining) $ 91,781
2019 179,437
2020 169,326
2021 158,203
2022 153,659
Thereafter 1,244,509
Total $ 1,996,915