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Impairment of Long-Lived Assets - Additional Information (Detail) (USD $)
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6 Months Ended |
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Jun. 30, 2014
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| Property Plant And Equipment [Abstract] | |
| Impairment of long-lived assets | $ 0 |
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- Definition
The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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