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Subsequent Event - Additional Information (Detail) | 1 Months Ended |  |
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Apr. 22, 2015 | Apr. 03, 2015 | Jan. 02, 2015
Subsequent Event [Line Items] |  |  |
Common Stock Shares Authorized |  | 100,000,000 us-gaap_CommonStockSharesAuthorized | 100,000,000 us-gaap_CommonStockSharesAuthorized
Subsequent Event [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Common Stock Shares Authorized | 80,000,000 us-gaap_CommonStockSharesAuthorized / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |
Preferred Stock, Shares Authorized | 2,000,000 us-gaap_PreferredStockSharesAuthorized / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |
Dividend Declared Stock Split Authorized | If the proposed stock split and the change in authorized shares are approved by stockholders the cash dividend will be $0.15 per share after giving effect to the split. If the proposed stock split, the change in authorized shares, or both are not approved by stockholders (such that the split does not occur), the cash dividend will be $0.30 per share. |  |
Stockholders' Equity Note, Stock Split | two-for-one stock split |  |

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- Definition Description on dividend declared stock split aothorized. + References No definition available. + Details
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- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
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- Definition The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.28) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29 -Article 5 + Details
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- Definition Description of the stock split arrangement. Also provide the retroactive effect given by a stock split that occurs after the balance date but before the release of financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Stock Split -URI http://asc.fasb.org/extlink&oid=6525746 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB TOPIC 4.C) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187143-122770 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 4 -Section C + Details
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- Details
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