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Real Estate Investments Noncontrolling Interests in Subsidiaries (Details) (USD $)
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0 Months Ended | 12 Months Ended | 0 Months Ended | 0 Months Ended | 1 Months Ended | |||||
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Jun. 15, 2011
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Dec. 31, 2011
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Dec. 31, 2010
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Dec. 31, 2009
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Dec. 31, 2011
4661 Kenmore Avenue [Member]
acre
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Jun. 15, 2011
Six Fifty North Glebe Road [Member]
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Dec. 31, 2011
Six Fifty North Glebe Road [Member]
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Nov. 23, 2011
Braddock Gateway [Member]
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Dec. 31, 2011
Braddock Gateway [Member]
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Oct. 31, 2011
Northern Virginia Industrial Park I I Member
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| Real Estate Properties [Line Items] | ||||||||||
| Land, Acres Held | 0.8 | |||||||||
| Estimated Development Costs | $ 43,500,000 | $ 95,000,000 | ||||||||
| Percentage Of Capital Contribution Through Debt | 70.00% | 70.00% | 70.00% | |||||||
| Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage | 90.00% | 95.00% | ||||||||
| Percentage Of Residential Property To Be Leased To Achieve Project Stabilization Stage | 90.00% | |||||||||
| Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners | 10.00% | 5.00% | ||||||||
| Inventory, Real Estate, Land and Land Development Costs | 13,400,000 | 14,400,000 | ||||||||
| Gain (Loss) on Sale of Properties | $ 97,491,000 | $ 21,600,000 | $ 13,300,000 | $ 400,000 | ||||||
| X | ||||||||||
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- Definition
The difference between the carrying value and the sale price of real estate or properties that were intended to be sold or held for capital appreciation or rental income. This element refers to the gain (loss) included in earnings and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Carrying amount as of the balance sheet date, net of valuation allowances and impairment losses, of costs of land expected to be developed in the near term plus capitalized costs of development, for purposes of selling completed units to home buyers or commercial or industrial entities.. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity. No definition available.
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- Details
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- Definition
Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Estimated Development Costs No definition available.
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- Definition
Land, Acres Held No definition available.
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- Definition
Percentage of capital contribution through debt No definition available.
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- Definition
Percentage Of Residential Property To Be Leased To Achieve Project Stabilization Stage No definition available.
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