Stockholders' Equity - Additional Information - Restricted Stock Units (Detail) (USD $)	6 Months Ended
Jun. 30, 2014
Schedule Of Stockholders Equity [Line Items]
Shares granted	780,000
Restricted Stock Units [Member]
Schedule Of Stockholders Equity [Line Items]
Fair value of restricted stock unit	$ 3.75
Fair value of restricted stock unit, forfeiture rate	0.00%
2012 Incentive Compensation Plan [Member] \| Restricted Stock Units [Member]
Schedule Of Stockholders Equity [Line Items]
Shares granted	132,600

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (d)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration