XML 30 R62.htm IDEA: XBRL DOCUMENT v2.4.1.9
Segment Information - Additional Information (Detail)
3 Months Ended
Mar. 31, 2015
Customer
Segment
Segment Reporting [Abstract]  
Number of business segments 3us-gaap_NumberOfReportableSegments
Number of customer who contributed more than 10 percent of revenue 0for_EntityWideRevenueMajorCustomerNumber
Maximum percentage of revenue from customer 10.00%us-gaap_ConcentrationRiskPercentage1