Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Other Intangible Assets Intangible Assets (Details)

v2.4.0.8
Goodwill and Other Intangible Assets Intangible Assets (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2013
Mar. 31, 2013
Acquired Finite-Lived Intangible Assets [Line Items]    
Intangible Assets, Gross $ 172,873 $ 172,272
Intangible Assets, Accumulated Amortization (46,010) (40,356)
Intangible Assets, Net (Excluding Goodwill) 126,863 131,916
Developed Technology Rights [Member]
    
Acquired Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Assets, Gross 10,994 10,929
Finite-Lived Intangible Assets, Accumulated Amortization (1,940) (1,659)
Finite-Lived Intangible Assets, Net 9,054 9,270
Customer Relationships [Member]
    
Acquired Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Assets, Gross 101,616 101,355
Finite-Lived Intangible Assets, Accumulated Amortization (32,977) (27,723)
Finite-Lived Intangible Assets, Net 68,639 73,632
Backlog [Member]
    
Acquired Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Assets, Gross 10,158 10,167
Finite-Lived Intangible Assets, Accumulated Amortization (10,158) (10,167)
Other Intangible Assets [Member]
    
Acquired Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Assets, Gross 1,630 1,630
Finite-Lived Intangible Assets, Accumulated Amortization (935) (807)
Finite-Lived Intangible Assets, Net 695 823
Trademarks [Member]
    
Acquired Finite-Lived Intangible Assets [Line Items]    
Indefinite-Lived Intangible Assets (Excluding Goodwill) 47,974 47,693
Certification Marks [Member]
    
Acquired Finite-Lived Intangible Assets [Line Items]    
Indefinite-Lived Intangible Assets (Excluding Goodwill) $ 501 $ 498