Annual report pursuant to Section 13 and 15(d)

Segment and Geographic Information - Additional Information (Detail)

v3.5.0.1
Segment and Geographic Information - Additional Information (Detail) - Segment
12 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Mar. 31, 2014
Segment Reporting Information [Line Items]      
Number of operating segments 3    
Number of reportable segments 2    
Sales | Customer A      
Segment Reporting Information [Line Items]      
Concentrations of credit risk, percentage 26.10% 50.60% 45.80%
Sales | Customer B      
Segment Reporting Information [Line Items]      
Concentrations of credit risk, percentage   11.10% 22.20%
Sales | Customer C      
Segment Reporting Information [Line Items]      
Concentrations of credit risk, percentage     10.50%