Subsequent Events - Additional Information (Detail) (Other Party [Member], Subsequent Event [Member], USD $) In Millions, unless otherwise specified	0 Months Ended
Oct. 10, 2014
Other Party [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Legal settlement of acquisition	$ 0.8

The amount of cash paid for the settlement of litigation or for other legal issues during the period.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 25

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585

Name:	us-gaap_PaymentsForLegalSettlements
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration