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Summary of Significant Accounting Policies - Impairment of Long-Lived Assets (Details) (USD $)
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9 Months Ended | 12 Months Ended | |
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Sep. 30, 2010
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Dec. 31, 2010
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Dec. 31, 2009
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| Summary of Significant Accounting Policies [Abstract] | |||
| Impairment charges | $ 111,000 | $ 846,000 | $ 5,200,000 |
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- Definition
Charges against earnings for both operating properties and properties classified as discontinued operations during the reporting period to reduce the carrying amount of real property to fair value. No definition available.
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- Details
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