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Summary of Restricted Stock Units Activity (Parenthetical) (Detail) shares in Thousands	12 Months Ended
	Dec. 31, 2015 shares
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Replacements of restricted share units assumed upon acquisitions	54

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Assumed Upon Acquisition Replaced

+ References

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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.

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No definition available.

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