Property, Equipment, and Related Depreciation and Amortization - Average Estimated Useful Lives for Property (Detail)	9 Months Ended
	Dec. 31, 2013
Machinery and equipment | Minimum
Property Plant And Equipment [Line Items]
Average estimated useful lives of property	3 years
Machinery and equipment | Maximum
Property Plant And Equipment [Line Items]
Average estimated useful lives of property	10 years
Furniture and fixtures | Minimum
Property Plant And Equipment [Line Items]
Average estimated useful lives of property	3 years
Furniture and fixtures | Maximum
Property Plant And Equipment [Line Items]
Average estimated useful lives of property	10 years
Computer hardware and software | Minimum
Property Plant And Equipment [Line Items]
Average estimated useful lives of property	3 years
Computer hardware and software | Maximum
Property Plant And Equipment [Line Items]
Average estimated useful lives of property	5 years
Leasehold improvements
Property Plant And Equipment [Line Items]
Average estimated useful lives of property	10 years