XML 125 R111.htm IDEA: XBRL DOCUMENT
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Subsequent Events - Additional Information (Details) - USD ($) |  |  |  | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Jan. 23, 2019 | Jan. 09, 2019 | Jan. 04, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Jan. 11, 2019
Subsequent Event [Line Items] |  |  |  |  |  |  |
Derivative, notional amount |  |  |  | $ 69,670,000 |  |  |
Proceeds from the disposition of properties |  |  |  | 63,866,000 | $ 260,711,000 | $ 150,378,000 |
Fund III |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Capital called |  |  |  | 423,900,000 |  |  |
Capital called company share amount |  |  |  | 551,900,000 |  |  |
Interest Rate Swaps |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Derivative, notional amount |  |  |  | $ 50,000,000 |  |  |
Derivative fixed interest rate |  |  |  | 2.80% |  |  |
Interest Rate Swaps | Mortgages |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Derivative, notional amount |  |  |  | $ 136,600,000 |  |  |
Derivative fixed interest rate |  |  |  | 2.86% |  |  |
Subsequent Event |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Derivative remaining maturity periods |  |  | 10 years |  |  |  |
Subsequent Event | Fund III | 3104 M Street Property |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Proceeds from the disposition of properties | $ 10,500,000 |  |  |  |  |  |
Subsequent Event | Renaissance Portfolio | Fund III | 3104 M Street Property |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Equity method investment, ownership percentage | 20.00% |  |  |  |  |  |
Subsequent Event | Renaissance Portfolio | Fund III | 3104 M Street Property | Mortgages |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Equity method investments | $ 4,700,000 |  |  |  |  |  |
Subsequent Event | Interest Rate Swaps |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Derivative, notional amount |  |  | $ 100,000,000 |  |  |  |
Derivative fixed interest rate |  |  | 2.60% |  |  |  |
Subsequent Event | Interest Rate Swaps | Fund V | Elk Grove Commons - Elk Grove, CA |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Borrowings, amount |  |  |  |  |  |  | $ 41,500,000
Subsequent Event | Fund V |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Capital called |  | $ 33,200,000 |  |  |  |  |
Capital called company share amount |  | $ 6,700,000 |  |  |  |  |

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