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Disposition of Properties and Properties Held for Sale (Details) (USD $)
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1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | |||||
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Feb. 28, 2010
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Mar. 31, 2011
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Jun. 30, 2010
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Sep. 30, 2010
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2009
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Sep. 30, 2010
Disposal Group [Member]
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Dec. 31, 2012
Disposal Group [Member]
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Dec. 31, 2011
Disposal Group [Member]
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Dec. 31, 2010
Disposal Group [Member]
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| Proceeds from Sale of Property Held-for-sale | $ 724,000 | $ 1,400,000 | |||||||||
| Impairment charges | 735,000 | 111,000 | 0 | 0.0 | 5,200,000 | 111,000 | |||||
| Disposal Group, Including Discontinued Operation, Revenue | 0 | 0 | 388,000 | ||||||||
| Disposal Group, Including Discontinued Operation, Operating Expense | 0 | 0 | 486,000 | ||||||||
| Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest | $ 0 | $ 0 | $ (98,000) | ||||||||
| X | ||||||||||
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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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| X | ||||||||||
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- Definition
Amount of operating expenses attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of sales or other form of revenues attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of income (loss) from a disposal group, net of income tax before extraordinary items allocable to noncontrolling interests. Includes, net of tax, income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cash inflow from the sale of formerly productive land held for sale, anything permanently fixed to it, including buildings, structures on it, and so forth. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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