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Organization and Summary of Significant Accounting Policies (Narrative) (Details) | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2024 USD ($) | Jun. 30, 2023 USD ($) | Jun. 30, 2024 USD ($) Segment | Jun. 30, 2023 USD ($) | Apr. 30, 2024 USD ($) | Dec. 31, 2023 USD ($)
Accounting Policies [Line Items] |  |  |  |  |  |  |
Interest costs capitalized |  | $ 1,617,000 | $ 721,000 | $ 3,476,000 | $ 1,126,000 |  |
Revenue recognized on cash basis |  | 11,108,000 | $ 14,523,000 | 20,883,000 | 30,088,000 |  |
Revolving credit facility borrowing capacity |  | 1,188,000,000 |  | $ 1,188,000,000 |  |  |
Number of Operating Segments | Segment |  |  |  | 1 |  |  |
Classified as held for sale | [1] | 9,442,000 |  | $ 9,442,000 |  |  | $ 4,573,000
Write-off of outstanding receivables and related accrued rent |  |  |  | 473,000 | $ 348,000 |  |
Escrow and other restricted accounts |  | $ 14,672,000 |  | $ 14,672,000 |  |  | 3,966,000
Land Improvements [Member] |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |
Property estimated useful life |  | 15 years |  | 15 years |  |  |
Mortgage loan |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |
Mortgage receivable |  | $ 705,000 |  | $ 705,000 |  |  | 1,002,000
Allowance for credit loss |  | $ 14,000 |  | $ 14,000 |  |  | 64,000
Minimum | Building and Building Improvements [Member] |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |
Property estimated useful life |  | 20 years |  | 20 years |  |  |
Maximum | Building and Building Improvements [Member] |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |
Property estimated useful life |  | 40 years |  | 40 years |  |  |
Revolving Credit Facility [Member] |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |
Revolving credit facility borrowing capacity |  | $ 1,200,000,000 |  | $ 1,200,000,000 |  | $ 1,100,000,000 |
Loans Payable |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |
Debt costs |  | 43,820,000 |  | 43,820,000 |  |  | 42,595,000
Debt costs accumulated amortization |  | $ 12,606,000 |  | $ 12,606,000 |  |  | $ 14,343,000
[1] |
(2) | As of June 30, 2024, six Properties were classified as held for sale. The one property classified as held for sale as of December 31, 2023 was sold during the six months ended June 30, 2024.

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