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The Company and Summary of Significant Accounting Policies - Recent Accounting Pronouncements (Details) | 12 Months Ended
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Dec. 31, 2017 USD ($)
ASU 2016-09 |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |
Tax benefit (expense) | $ 0

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- Definition Amount of tax benefit from exercise of stock options granted under share-based compensation arrangement. + References No definition available. + Details
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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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- Details
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