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v3.19.3.a.u2

Organization and Summary of Significant Accounting Policies (Narrative) (Details) | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2019 USD ($) segment | Dec. 31, 2018 USD ($) segment | Dec. 31, 2017 USD ($) segment | Jan. 01, 2019 USD ($) | Oct. 31, 2017 USD ($) | Sep. 30, 2017 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |
Number of operating segments | segment | 1 | 1 | 1 |  |  |
Interest costs capitalized | $ 1,099,000 | $ 2,675,000 | $ 2,435,000 |  |  |
Real estate acquisitions | 668,489,000 | 591,691,000 |  |  |  |
Investments in work in progress - improvements | 84,008,000 | 123,881,000 |  |  |  |
Revolving credit facility borrowing capacity | 900,000,000 |  |  |  | $ 900,000,000 | $ 650,000,000
Deferred debt costs, accumulated amortization | 15,574,000 | 14,118,000 |  |  |  |
Mortgages |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Deferred debt costs | 147,000 | 147,000 |  |  |  |
Deferred debt costs, accumulated amortization | 90,000 | 73,000 |  |  |  |
Loans Payable |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Deferred debt costs | 26,932,000 | 26,932,000 |  |  |  |
Deferred debt costs, accumulated amortization | $ 8,962,000 | $ 6,705,000 |  |  |  |
ASU 2016-02 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Operating lease - right-of-use assets |  |  |  | $ 7,735,000 |  |
Operating lease liabilities |  |  |  | $ 10,155,000 |  |

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