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Leases (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Leases [Abstract]        
Fixed contractual payments $ 581,393 $ 557,384 $ 1,732,930 $ 1,673,855
Variable lease payments 110,867 109,290 329,172 333,049
Lease $ 692,260 $ 666,674 $ 2,062,102 $ 2,006,904