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Impairment of Long-Lived Assets - Additional Information (Detail) $ in Thousands | 9 Months Ended
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Sep. 30, 2015 USD ($) | Sep. 30, 2014
Indefinite-lived Intangible Assets [Line Items] |  |
Estimated aggregate fair value of long-lived assets impaired during current period | $ 1,801 |
Remaining operating period assumed for fee owned properties | 20 years |
Multiple of cash flows used to estimate fair value of long-lived asset | 6.5 | 6.5

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- Definition Maximum remaining use period assumed in impairment evaluation for fee owned properties. + References No definition available. + Details
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- Definition Estimated aggregate fair value of long lived assets impaired during current period. + References No definition available. + Details
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- Definition Represents cash flow multiple used to estimate fair value of long-lived assets evaluated for impairment during reporting period. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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