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GOODWILL AND INTANGIBLE ASSETS Schedule of Goodwill (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Mar. 30, 2013
Mar. 31, 2012
Goodwill [Roll Forward]    
Goodwill, carrying amount $ 115,058 $ 115,367
Whole blood business 216,940 [1]  
Effect of change in foreign currency exchange rates (1,524) (309)
Goodwill, carrying amount $ 330,474 $ 115,058
[1] See Note 3, Acquisitions, for a full description of the acquisition of the whole blood assets, which occurred on August 1, 2012.