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Fair Value Measurements (Details 3) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2010
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| Fair value of impaired properties and other assets | |||||||||
| Assets | $ 163 | ||||||||
| Impairment Losses Recognized | 43,214 | 83,478 | 0 | ||||||
| Exit Costs Included in Impairment Losses in Connection with Dispositions | (4,146) | 0 | 0 | ||||||
|
Fair value measurement on a nonrecurring basis | Properties, net
|
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| Fair value of impaired properties and other assets | |||||||||
| Impairment Losses Recognized | 62,702 | [1] | 150,093 | [1] | |||||
|
Fair value measurement on a nonrecurring basis | Prepaid and other assets
|
|||||||||
| Fair value of impaired properties and other assets | |||||||||
| Impairment Losses Recognized | 928 | [1] | |||||||
|
Fair value measurement on a nonrecurring basis | Significant Unobservable Inputs (Level 3) | Properties, net
|
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| Fair value of impaired properties and other assets | |||||||||
| Assets | 379,684 | [2] | 320,894 | [2] | |||||
| Exit Costs Included in Impairment Losses in Connection with Dispositions | 4,200 | ||||||||
|
Fair value measurement on a nonrecurring basis | Significant Unobservable Inputs (Level 3) | Prepaid and other assets
|
|||||||||
| Fair value of impaired properties and other assets | |||||||||
| Assets | 163 | [2] | |||||||
|
Fair value measurement on a nonrecurring basis | Total Estimated Fair Value | Properties, net
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| Fair value of impaired properties and other assets | |||||||||
| Assets | $ 379,684 | [2] | $ 320,894 | [2] | |||||
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