Annual report pursuant to Section 13 and 15(d)

Estimated Future Amortization Expense (Detail)

v2.4.1.9
Estimated Future Amortization Expense (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Mar. 31, 2014
Mar. 31, 2013
Goodwill And Intangible Assets Disclosure [Abstract]      
2016 $ 8,631us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths    
2017 8,270us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo    
2018 3,546us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree    
2019 2,616us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour    
2020 617us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive    
Future 1,256us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive    
Net $ 24,936us-gaap_IntangibleAssetsNetExcludingGoodwill $ 9,074us-gaap_IntangibleAssetsNetExcludingGoodwill $ 4,757us-gaap_IntangibleAssetsNetExcludingGoodwill