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Contingencies - Additional Information (Detail) (USD $) | 3 Months Ended | 1 Months Ended
--- | --- | ---
Sep. 30, 2013 | Oct. 25, 2013 Subsequent Events [Member]
Loss Contingencies [Line Items] |  |
Minimum estimated range of aggregate loss for legal proceedings | $ 0 |
Maximum estimated range of aggregate loss for legal proceedings | 24,000,000 |
Agreed settlement amount |  | 10,000,000
Amount of recovered insurance proceeds |  | 4,900,000
Net amount due under the settlement agreement |  | 5,100,000
Agreed full and final settlement amount |  | 500,000
Litigation expenses | $ 2,300,000 |

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- Definition Amount of judgment or settlement awarded to (against) the entity in respect of litigation. + References No definition available. + Details
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- Definition Amount of loss contingency liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 + Details
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