Stockholders' Equity - Share-based Compensation Plans (Detail)	3 Months Ended
Mar. 31, 2016 plan shares
Share-based Compensation Arrangement by Share-based Payment Award
Share-based employee compensation plans, number \| plan	2
2012 Plan
Share-based Compensation Arrangement by Share-based Payment Award
2012 equity incentive plan shares authorized \| shares	25,000,000
Shares reserved for issuance increase percentage	2.50%
Share-based compensation arrangement by share-based payment award, expiration period (in years)	10 years
Share-based compensation arrangement by share-based payment award, expiration period for plan (in years)	10 years
2012 Plan \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award
Shares reserved for issuance increase date range	Jan. 01, 2013
2012 Plan \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award
Shares reserved for issuance increase date range	Jan. 01, 2022

Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period for Plan

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- Definition

Share-based Employee Compensation Plans, Number

+ References

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- Definition

Shares reserved for issuance, increase date

+ References

No definition available.

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- Definition

Shares Reserved For Issuance Increase Percentage

+ References

No definition available.

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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.

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- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

+ 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 (a)(3)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ 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 (a)(2)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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