Annual report pursuant to Section 13 and 15(d)

Acquisitions Acquisitions (Details 1)

Acquisitions Acquisitions (Details 1) (CSI [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 02, 2014
Acquired Finite-Lived Intangible Assets [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill		$ 16,230
Backlog [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill		70
Finite-Lived Intangible Asset, Useful Life	0 years 1 month
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill		10,980
Finite-Lived Intangible Asset, Useful Life	7 years
Trademarks [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill		810
Finite-Lived Intangible Asset, Useful Life	7 years
Product Technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill		3,860
Finite-Lived Intangible Asset, Useful Life	3 years
Noncompete Agreements [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill		$ 510
Finite-Lived Intangible Asset, Useful Life	2 years