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Leases ASC 842 (Details) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 USD ($) | Jun. 30, 2019 USD ($) propertyUnit
Lessor Disclosure [Abstract] |  |
Rental and other revenues related to operating lease payments | $ 180,700 | $ 350,100
Variable lease income | 16,400 | 31,900
Operating leases, scheduled future minimum payments receivable [Abstract] |  |
July 1 to December 31, 2019 | 312,569 | 312,569
2020 | 603,436 | 603,436
2021 | 556,132 | 556,132
2022 | 520,992 | 520,992
2023 | 461,440 | 461,440
2024 | 401,060 | 401,060
Thereafter | 1,751,410 | 1,751,410
Operating leases, total future minimum payments receivable due | $ 4,607,039 | $ 4,607,039
Lessee Disclosure [Abstract] |  |
Number of properties subject to ground leases | propertyUnit |  | 20
Weighted average remaining term of ground leases (in years) | 52 years | 52 years
Operating lease liability upon initial adoption | $ 35,300 | $ 35,300
Right of use asset upon initial adoption | $ 29,700 | $ 29,700
Operating lease discount rate (in hundredths) | 4.50% | 4.50%
Operating ground lease expense | $ 600 | $ 1,200
Operating ground lease payments | 700 | 1,200
Operating ground lease liabilities, scheduled future minimum payments [Abstract] |  |
July 1 to December 31, 2019 | 1,030 | 1,030
2020 | 2,086 | 2,086
2021 | 2,127 | 2,127
2022 | 2,169 | 2,169
2023 | 2,167 | 2,167
2024 | 2,123 | 2,123
Thereafter | 83,697 | 83,697
Operating ground lease liability, total future minimum payments | 95,399 | 95,399
Operating lease liability discount | (60,269) | (60,269)
Operating lease liability | $ 35,130 | $ 35,130
Minimum [Member] |  |
Lessor Disclosure [Abstract] |  |
Operating leases, term of leases | 3 years | 3 years
Maximum [Member] |  |
Lessor Disclosure [Abstract] |  |
Operating leases, term of leases | 10 years | 10 years

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