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Impairment of Long-Lived Assets - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified | 9 Months Ended
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Sep. 30, 2013 | Sep. 30, 2012
Indefinite-lived Intangible Assets [Line Items] |  |
Lease period of fee owned properties | 20 years |
Fair value of long-lived assets in the multiples of cash flow | Six and a half times | Six and a half times
Estimated aggregate fair value of long-lived assets impaired during current period | $ 327 |

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- Definition Assumed remaining period of 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 A description of how an entity determined the fair value of the long-lived asset they are holding and using, for example, whether based on a quoted market price, prices for similar assets, or another valuation technique. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section CC -Subsection 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6391110&loc=d3e2921-110230 + Details
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- Details
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