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Stock-Based Compensation - Summary of Unvested Restricted Stock Unit Activity (Parenthetical) (Detail)	3 Months Ended
	Mar. 31, 2016 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units vest description	73,171 restricted stock units vest and convert into shares of our common stock after one year from the date of grant. 204,039 restricted stock units are performance based and vest on achievement of predefined milestones.
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of RSUs, Granted	277,210
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted units would vest over vesting period	73,171
Restricted stock units vest and convert into shares of our common stock	1 year
Performance Based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted units vest and convert into common stock over next fiscal year	204,039

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Number Of Restricted Unit Vest Over Next Fiscal Year

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Restricted Stock Unit Conversion Into Shares Period

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Restricted Stock Unit Vest Description

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ 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)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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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