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Summary of General Terms of Stock-Based Compensation Plans for Awards Granted (Parenthetical) (Detail) - Maximum | Dec. 31, 2020 shares
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2004 Plan |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Share based compensation, common stock shares reserved | 1,400,000
2006 Plan |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Share based compensation, common stock shares reserved | 200,000
2007 Plan |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Share based compensation, common stock shares reserved | 400,000
2009 Plan |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Share based compensation, common stock shares reserved | 300,000
2010 Plan |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Share based compensation, common stock shares reserved | 200,000

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Number of shares authorized for issuance under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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