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GOODWILL AND OTHER INTANGIBLE ASSETS Schedule of Goodwill (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Mar. 31, 2012
Apr. 02, 2011
Goodwill [Roll Forward]    
Goodwill, carrying amount $ 115,367 $ 109,988
Effect of change in foreign currency exchange rates (309) 2,326
Goodwill, carrying amount 115,058 115,367
SEBRA of Engineering and Research Associates, Inc [Member]
   
Goodwill [Roll Forward]    
Goodwill acquired during period   163 [1]
Altivation Software [Member]
   
Goodwill [Roll Forward]    
Goodwill acquired during period   228
Applied Critical Care Services, Inc. [Member]
   
Goodwill [Roll Forward]    
Goodwill acquired during period   $ 2,662 [2]
[1] See Note 3, Acquisitions, for a full description of the acquisition of the SEBRA® assets, which occurred on September 4, 2009.
[2] See Note 3, Acquisitions, for a full description of the acquisition of Applied Critical Care Services, Inc. (“ACCS”), which occurred on December 28, 2010.