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CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Sep. 30, 2012
Oct. 02, 2011
Sep. 30, 2012
Oct. 02, 2011
Statement of Income and Comprehensive Income [Abstract]        
Net Income (loss) $ (73) $ 46,747 $ (4,388) $ 51,901
Currency translation adjustments 905 (763) 725 (511)
Change in net unrealized gain (loss) on investments 50 (80) 0 (77)
Comprehensive income (loss) $ 882 $ 45,904 $ (3,663) $ 51,313