Quarterly report pursuant to Section 13 or 15(d)

Segment and Geographic information (Detail)

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Segment and Geographic information (Detail) - Segment
3 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Segment Reporting Information [Line Items]    
Number of operating segments 4  
Number of reportable segments 2  
Sales | Customer A    
Segment Reporting Information [Line Items]    
Concentrations of credit risk, percentage 26.50% 64.40%