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Investments In Joint Ventures (Narrative) (Details) | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Jun. 30, 2021 USD ($) | Jun. 30, 2019 | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 12, 2019
Maximum Investments by Formed Unconsolidated Joint Venture |  |  |  | $ 360,000,000 |  |  |  |  |
Direct Costs of Leased and Rented Property or Equipment |  |  |  | 267,703,000 |  | $ 252,190,000 | $ 235,589,000 |  |
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property |  |  |  | (174,384,000) |  | (382,000) | (49,901,000) |  |
Equity in income of joint ventures | [1] |  |  | $ 9,777,000 | [2] | $ 8,052,000 | 14,783,000 | [2] |
Number of joint ventures accounted for under equity method investments |  |  | 3 | 3 |  | 3 |  |  |
Equity method investment ownership percentage |  |  |  | 31.30% |  |  |  |  |
Maximum guaranteed amount of loans utilized for construction and development activities for joint ventures |  |  |  | $ 400,000 |  |  |  |  |
Fees earned for property and asset management, construction, development, and other services to joint ventures |  |  |  | $ 6,600,000 |  | $ 7,600,000 | $ 6,800,000 |  |
Maximum [Member] |  |  |  |  |  |  |  |  |
Equity method investment ownership percentage |  |  |  | 40.00% |  |  |  |  |
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] |  |  |  |  |  |  |  |  |
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property |  |  |  |  |  | $ (400,000) |  |  |
Camden South Bay [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] |  |  |  |  |  |  |  |  |
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property |  |  |  | $ (6,200,000) |  |  |  |  |
Number of Real Estate Properties |  |  |  |  |  |  |  |  | 1
Proceeds from Sale of Property, Plant, and Equipment |  | $ 38,500,000 |  |  |  |  |  |  |
Number of Units in Real Estate Property |  |  |  |  |  |  |  |  | 270
[1] | Equity in income excludes our ownership interest of fee income from various services provided by us to the Funds.
[2] | Equity in income for the year ended December 31, 2020 includes our ownership interest of the Resident Relief Fund payments of approximately $0.4 million. Equity in income for the year ended December 31, 2019 includes our ownership interest of the gain on sale of the operating property of approximately $6.2 million.

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- Definition Maximum investment by formed unconsolidated joint venture including leverage of approximately 50% of the estimated value of the underlying real estate after to change in June 2019. + References No definition available. + Details
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- Definition Amount of expense incurred and directly related to generating revenue by lessor from operating lease of rented property and equipment. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(2)(c)) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 + Details
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- Definition This element represents the undistributed income (or loss) of equity method investments, net of dividends or other distributions received from unconsolidated subsidiaries, certain corporate joint ventures, and certain noncontrolled corporations; such investments are accounted for under the equity method of accounting. This element excludes distributions that constitute a return of investment, which are classified as investing activities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details
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