Significant Accounting Policies (Schedule Of Rental Property Improvements) (Details) - USD ($) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2018 |
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| Property, Plant and Equipment [Line Items] | ||
| Land held for development (including pre-development costs, if any) | $ 388,702,000 | $ 465,930,000 |
| Development and construction in progress, including land | 464,110,000 | 327,039,000 |
| Total | 852,812,000 | 792,969,000 |
| Buildings and improvement | 156,500,000 | 204,900,000 |
| Development [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Land | 96,600,000 | 49,600,000 |
| Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Buildings and improvement | $ 40,900,000 | |
| Land | 48,500,000 | |
| Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Development [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Buildings and improvement | 5,600,000 | |
| Land | $ 500,000 | |
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- Definition Buildings And Improvements, Net Of Accumulated Depreciation No definition available.
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- Definition Development And Construction In Progress, Including Land No definition available.
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- Definition Amount before accumulated depletion of real estate held for productive use, excluding land held for sale. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before accumulated deprecation and depletion of real estate held for productive use and additions or improvements to real estate held for productive use, examples include, but are not limited to, walkways, driveways, fences, and parking lots. Excludes land held for sale. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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