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Summary of Significant Accounting Policies - Merger (Details) |  | 12 Months Ended
--- | --- | ---
Jan. 10, 2017 | Jan. 10, 2017 | Dec. 31, 2018
Colony NorthStar | Class A Common Stock |  |  |
Business Acquisition [Line Items] |  |  |
Business combination, stock exchange, conversion ratio | 1.4663 | 1.4663 | 1.4663

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- Details
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