Quarterly report pursuant to sections 13 or 15(d)

Intangible Assets - Additional Information (Detail)

v2.4.0.8
Intangible Assets - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
6 Months Ended 12 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Mar. 31, 2013
Goodwill And Intangible Assets [Line Items]      
Increase in intangible assets     $ 6,826
Unamortizable intangible assets, impairment of intangibles 0   0
Amortization expense, in cost of revenues $ 975 $ 116