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Income Taxes - Additional Information (Detail) (USD $) | 9 Months Ended
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Sep. 30, 2013
Income Tax Examination [Line Items] |
Gross liability for tax positions | $ 204,000
Income tax examination years description | The Company is no longer subject to U.S. Federal income tax examinations for the years prior to 2011.
State Tax Authority | Minimum |
Income Tax Examination [Line Items] |
Income tax examination year | 2008
State Tax Authority | Maximum |
Income Tax Examination [Line Items] |
Income tax examination year | 2012

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- Definition A brief description of status of the tax examination, significant findings to date, and the entity's position with respect to the findings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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- Definition The current portion of the amount recognized for uncertain tax positions as of the balance sheet date. + 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 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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