Segment Reporting, Geographic Information and Major Customers - Additional Information (Detail)	3 Months Ended
Mar. 31, 2014 Customer Segment
Segment Reporting Information [Line Items]
Number of reportable business segments	4
Number of customer represented 15% of total revenue	1
Number of customers represented 19% of company's accounts receivable	1

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

No definition available.

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration