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Stockholders' Equity - Summary of Changes in Common Shares Available for Awards under Omnibus Incentive Plan and Predecessor Plans (Parenthetical) (Detail) shares in Millions | Dec. 31, 2015 shares
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PSU and SLO Awards [Member]. |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Contingently issuable shares | 4.1

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- Definition Contingently issuable shares. + References No definition available. + Details
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Period Type: | instant

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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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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |