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Related Party Transactions: (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2016 | Mar. 31, 2015 | Dec. 31, 2015
Related party transactions |  |  |
Interest expense, related party | $ 2,272 | $ 2,729 |
Due from affiliates | 73,087 |  | $ 83,928
Related parties note receivable, RED Consolidated Holdings, LLC |  |  |
Related party transactions |  |  |
Due from affiliates | $ 8,222 |  | $ 9,252
Note receivable, interest rate (as a percent) | 5.25% |  | 5.25%
Interest income, related party | $ 117 | 137 |
Unconsolidated Joint Ventures and Third Party Managed Properties |  |  |
Related party transactions |  |  |
Management fees | 3,953 | 2,211 |
Development and leasing fees | 2,961 | 1,892 |
Fees charged to unconsolidated joint ventures and third-party managed properties | 6,914 | 4,103 |
Northwestern Mutual Life (NML) |  |  |
Related party transactions |  |  |
Interest expense payable, related party | 751 |  | $ 756
Unconsolidated Joint Ventures |  |  |
Related party transactions |  |  |
Due from affiliates | (2,865) |  | 7,467
Candlestick Point | Affiliated Entity | Notes Receivable |  |  |
Related party transactions |  |  |
Interest income, related party | 521 | $ 433 |
Note receivable | $ 67,730 |  | $ 67,209
London Interbank Offered Rate (LIBOR) | Candlestick Point | Affiliated Entity | Notes Receivable |  |  |
Related party transactions |  |  |
Note receivable, interest rate (as a percent) | 2.00% |  |

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