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Real Estate Investments (Details) (USD $) In Thousands | Jun. 30, 2011 | Dec. 31, 2010
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Gross carrying value of rental properties |  |
Land | $ 698,982 | $ 697,724
Building and improvements | 3,722,243 | 3,693,579
Tenant improvements | 463,816 | 442,808
Rental properties | $ 4,885,041 | $ 4,834,111

X
- Definition Carrying amount as of the balance sheet date of long-lived, depreciable assets that include building structures held for productive use including any addition, improvement, or renovation to the structure, such as interior masonry, interior flooring, electrical, and plumbing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 5 + Details
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- Definition Carrying amount as of the balance sheet date of real estate held for productive use. This excludes land held for sale. + Details
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- Definition Carrying amount at the balance sheet date of long-lived, depreciable asset that is an addition or improvement to assets held under lease arrangement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 5 + Details
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- Details
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- Definition Represents a total which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments. + Details
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