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Leases Lessor, Lease Income Table (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Leases [Abstract]        
Fixed Contractual Payments $ 557,820   $ 1,111,806  
Variable lease payments 122,369   247,634  
Lease $ 680,189 $ 0 $ 1,359,440 $ 0