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Subsequent Events - Additional Information (Detail) (Subsequent Event, Stock Purchase Agreement, TFI, USD $)
In Millions, unless otherwise specified |
1 Months Ended |
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Mar. 10, 2014
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Subsequent Event | Stock Purchase Agreement | TFI
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| Subsequent Event [Line Items] | |
| Sale of common stock of its subsidiary | 100.00% |
| Proceed from sale of common stock of its subsidiary | $ 165.0 |
| Stock received from sale of ownership of subsidiary | $ 10.0 |