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Stockholders' Equity - Summarization of Common Stock Shares for Issuance Under Existing Equity Compensation Plans (Detail) shares in Thousands | Dec. 31, 2017 $ / shares shares
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of Securities to be Issued Upon Exercise of Outstanding Options & Vesting of RSUs | 21,401
Weighted-Average Exercise Price of Outstanding Options | $ / shares | $ 20.35
Number of Securities Remaining Available for Issuance Under Equity Compensation Plans (Excluding Securities Reflected in Column) | 5,360
Equity Compensation Plans Approved by Security Holders [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of Securities to be Issued Upon Exercise of Outstanding Options & Vesting of RSUs | 20,999
Weighted-Average Exercise Price of Outstanding Options | $ / shares | $ 20.55
Number of Securities Remaining Available for Issuance Under Equity Compensation Plans (Excluding Securities Reflected in Column) | 5,360
Equity Compensation Plans Not Approved by Security Holders [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of Securities to be Issued Upon Exercise of Outstanding Options & Vesting of RSUs | 402
Weighted-Average Exercise Price of Outstanding Options | $ / shares | $ 11.01
Number of Securities Remaining Available for Issuance Under Equity Compensation Plans (Excluding Securities Reflected in Column) | 0

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- Definition Share based compensation arrangement by share based payment award options and restricted stock units outstanding. + 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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- Definition Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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