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Related-Party Transactions - Narrative (Details) ft² in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) | Dec. 31, 2013 ft² note
Related Party Transaction [Line Items] |  |  |  |
Interest expense, related party | $ 8,973 | $ 10,515 | $ 15,134 |
Due (to) from affiliates | $ 68,227 | $ 83,928 |  |
Limited partnership interest of the operating partnership (as a percent) | 7.00% | 7.00% |  |
Related Parties Note Receivable, RED Consolidated Holdings, LLC |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Due (to) from affiliates | $ 5,593 | $ 9,252 |  |
Notes receivable interest rate | 5.25% |  |  |
Interest earned | $ 366 | 520 | 614 |
Northwestern Mutual Life (NML) |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Interest expense payable, related party | 736 | 756 |  |
Unconsolidated joint ventures |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Interest income, related party |  |  | 164 |
Due (to) from affiliates | (6,809) | 7,467 |  |
Affiliated entity |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Limited partnership interest of the operating partnership (as a percent) |  |  |  | 40.00%
Affiliated entity | Fashion Outlets of Chicago |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Property square footage | ft² |  |  |  | 538
Affiliated entity | Related parties note receivable, AWE Talisman Company |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Interest income, related party |  |  | 516 |
Number of notes receivable | note |  |  |  | 2
Notes receivable interest rate |  |  |  | 5.00%
Affiliated entity | Notes receivable | Fashion Outlets of San Francisco |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Interest earned | 2,234 | 1,872 | $ 206 |
Note receivable | $ 69,443 | $ 67,209 |  |
Affiliated entity | Notes receivable | Fashion Outlets of San Francisco | LIBOR |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Notes receivable interest rate | 2.00% |  |  |

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