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Major Category of Assets Measured at Fair Value on Recurring Basis (Detail) - Fair Value, Measurements, Recurring $ in Thousands | Mar. 31, 2017 USD ($)
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Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items] |
Assets | $ 97,472
Money market funds |
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items] |
Assets | 85,292
U.S. Government and agency securities |
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items] |
Assets | 402
Corporate and other debt securities |
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items] |
Assets | 11,778
Quoted prices in active markets for identical assets (Level 1) |
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items] |
Assets | 85,694
Quoted prices in active markets for identical assets (Level 1) | Money market funds |
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items] |
Assets | 85,292
Quoted prices in active markets for identical assets (Level 1) | U.S. Government and agency securities |
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items] |
Assets | 402
Significant other observable inputs (Level 2) |
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items] |
Assets | 11,778
Significant other observable inputs (Level 2) | Corporate and other debt securities |
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items] |
Assets | $ 11,778

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- Definition Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items] + References No definition available. + Details
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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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