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Related Party Transactions - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016 | Dec. 31, 2016
Related Party Transaction [Line Items] |  |  |  |  |
Interest expense, related party | $ 2,181 | $ 2,256 | $ 4,392 | $ 4,528 |
Due from affiliates | 81,545 |  | 81,545 |  | $ 68,227
Related parties note receivable, RED Consolidated Holdings, LLC |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Due from affiliates | $ 4,933 |  | $ 4,933 |  | 5,593
Note receivable, interest rate | 5.25% |  | 5.25% |  |
Interest income, related party | $ 68 | 97 | $ 138 | 214 |
Northwestern Mutual Life (NML) |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Interest expense payable, related party | 726 |  | 726 |  | 736
Unconsolidated Joint Ventures |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Due from affiliates | 5,952 |  | 5,952 |  |
Due to affiliates |  |  |  |  | (6,809)
Affiliated Entity | Notes Receivable | Fashion Outlets of San Francisco |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Interest income, related party | 607 | $ 525 | 1,218 | $ 1,046 |
Note receivable | $ 70,660 |  | $ 70,660 |  | $ 69,443
Affiliated Entity | Notes Receivable | LIBOR | Fashion Outlets of San Francisco |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Note receivable, interest rate | 2.00% |  | 2.00% |  |

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