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Related Party Transactions - Narrative (Details) - USD ($) | Jul. 30, 2020 | Jun. 30, 2020
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Hollywood Media Portfolio | Investee |  |
Related Party Transaction [Line Items] |  |
Notes receivable | $ 107,800,000 |
Hollywood Media Portfolio | Investee | Blackstone Property Partners |  |
Related Party Transaction [Line Items] |  |
Notes receivable | 12,500,000 |
Hollywood Media Portfolio Debt |  |
Related Party Transaction [Line Items] |  |
Debt instrument, face amount | $ 900,000,000.0 |
Hollywood Media Portfolio |  |
Related Party Transaction [Line Items] |  |
Ownership percentage sold | 49.00% | 49.00%
Percentage ownership retained | 51.00% |

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