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Summary of Significant Accounting Policies and Recent Accounting Pronouncements (Narrative) (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 6 Months Ended
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Jun. 30, 2011 | Jun. 30, 2010 | Jun. 30, 2011 | Jun. 30, 2010
Summary of Significant Accounting Policies and Recent Accounting Pronouncements |  |  |  |
Capitalized interest | $ 1.8 | $ 1.3 | $ 3.6 | $ 2.6
Capitalized real estate taxes | $ 0.3 | $ 0.2 | $ 0.7 | $ 0.5
Percentage of rental revenue and other income from leasing of apartment homes |  |  |  | 98.00%

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- Definition Percentage of our total property revenues and total non-property income from leasing of apartment homes, excluding income on deferred compensation plans. + Details
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- Definition The amount of interest that was capitalized during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 34 -Paragraph 21 -Subparagraph b + Details
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- Details
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