Annual report pursuant to Section 13 and 15(d)

Goodwill and Other Intangible Assets - Schedule of Definite-Lived Assets (Details)

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Goodwill and Other Intangible Assets - Schedule of Definite-Lived Assets (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Mar. 31, 2012
Schedule of Acquired Indefinite-Lived and Finite-Lived Intangible Assets [Line Items]    
Net carrying amount, finite-lived intangibles $ 83,725  
Gross carrying amount, intangibles 172,272 174,345
Accumulated amortization, intangibles (40,356) (29,544)
Net carrying amount, intangibles 131,916 144,801
Developed Technology [Member]
    
Schedule of Acquired Indefinite-Lived and Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount, finite-lived intangibles 10,929 11,080
Accumulated amortization, finite-lived intangibles (1,659) (1,135)
Net carrying amount, finite-lived intangibles 9,270 9,945
Customer Relationships [Member]
    
Schedule of Acquired Indefinite-Lived and Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount, finite-lived intangibles 101,355 102,492
Accumulated amortization, finite-lived intangibles (27,723) (17,569)
Net carrying amount, finite-lived intangibles 73,632 84,923
Backlog [Member]
    
Schedule of Acquired Indefinite-Lived and Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount, finite-lived intangibles 10,167 10,287
Accumulated amortization, finite-lived intangibles (10,167) (10,287)
Net carrying amount, finite-lived intangibles 0 0
Other [Member]
    
Schedule of Acquired Indefinite-Lived and Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount, finite-lived intangibles 1,630 1,633
Accumulated amortization, finite-lived intangibles (807) (553)
Net carrying amount, finite-lived intangibles 823 1,080
Trademarks [Member]
    
Schedule of Acquired Indefinite-Lived and Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount, indefinite-lived intangibles 47,693 48,348
Certification Marks [Member]
    
Schedule of Acquired Indefinite-Lived and Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount, indefinite-lived intangibles $ 498 $ 505