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Noncontrolling Interest (Details) $ in Thousands | 1 Months Ended | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Mar. 31, 2017 USD ($) building property | Sep. 30, 2018 USD ($) | Sep. 30, 2017 USD ($) | Sep. 30, 2018 USD ($) | Sep. 30, 2017 USD ($)
Noncontrolling Interest [Line Items] |  |  |  |  |
Number of properties included in joint venture agreement | property | 1 |  |  |  |
Number of buildings included in joint venture agreement | building | 2 |  |  |  |
Proceeds from noncontrolling interest, net | $ 255,931 |  |  | $ 0 | $ 255,813
Noncontrolling interest in variable interest equity | 181,859 |  |  |  |
Adjustments to additional paid in capital, difference between net proceeds received and fair value of noncontrolling interest equity | 74,072 |  |  |  |
Comprehensive income attributable to noncontrolling interest |  | $ (1,397) | $ (1,379) | (4,181) | (2,865)
Cash distribution for joint venture partners |  | 5,151 | $ 5,105 | 15,932 | $ 8,587
Variable interest entity, consolidated, carrying amount, real estate assets |  | 749,830 |  | 749,830 |
Variable interest entity, consolidated, carrying amount, mortgage debt |  | $ 620,000 |  | $ 620,000 |
Third Party Investor |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |
Noncontrolling interest, increase from business combination | $ 261,009 |  |  |  |
Joint Venture |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |
Noncontrolling interest, ownership percentage by noncontrolling owners | 45.00% |  |  |  |
Noncontrolling interest, ownership percentage by parent | 55.00% |  |  |  |

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