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Legal Proceedings - Additional Information (Detail) - USD ($) |  |  | 1 Months Ended
--- | --- | --- | ---
Oct. 11, 2013 | May. 26, 2011 | Dec. 31, 2013
Case No. 811-CV-399-T-30AEP [Member] |  |  |
Loss Contingencies [Line Items] |  |  |
Minimum jurisdictional amount |  | $ 75,000 |
Settlement fee paid |  |  | $ 525,000
Case No. 13-CA-D09980 [Member] |  |  |
Loss Contingencies [Line Items] |  |  |
Minimum jurisdictional amount | $ 75,000 |  |

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