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Legal Proceedings - Additional Information (Detail) - USD ($) | Feb. 24, 2016 | Jan. 20, 2016 | Dec. 03, 2015
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Case No.15-007461-CI [Member] |  |  |
Loss Contingencies [Line Items] |  |  |
Directors and officers insurance policy claim deductible |  |  | $ 15,000
Case No.11915-VCG [Member] |  |  |
Loss Contingencies [Line Items] |  |  |
Directors and officers insurance policy claim deductible |  | $ 500,000 |
Case No. 8:16CV408t30 [Member] |  |  |
Loss Contingencies [Line Items] |  |  |
Directors and officers insurance policy claim deductible | $ 75,000 |  |

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