Stockholders' Equity - Share-based Compensation Plans (Detail)	3 Months Ended
Mar. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award
Share-based employee compensation plans, number	2
2012 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Share-based compensation arrangement by share-based payment award, expiration period	10 years
Share-based compensation arrangement by share-based payment award, expiration period for plan	10 years
2012 equity incentive plan shares authorized	25,000,000
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

No definition available.

+ Details

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- Definition

Shares reserved for issuance, increase date

+ References

No definition available.

+ Details

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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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- 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

+ Details

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