Net Loss Per Share - Additional Information (Detail) (Convertible Note Warrant, USD $)	Jun. 30, 2014	Jun. 12, 2014
Convertible Note Warrant
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Exercise price of shares issued on warrant transactions	$ 12.00	$ 12.00

Exercise price per share or per unit of warrants or rights outstanding.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(i)(4))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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