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Net Income (Loss) Per Share (Tables)
9 Months Ended
Jan. 01, 2012
Net Income (Loss) Per Share (Details) [Abstract]  
ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock
Basic net income per share is computed using the weighted-average number of common shares outstanding during the period.  Diluted net income per share is computed using the weighted-average number of common and dilutive potential common shares outstanding during the period. Potential common shares include employee stock options and restricted stock units.
 
   
Three Months Ended
  
Nine Months Ended
 
(in thousands, except per share amounts)
 
Jan. 1,
2012
  
Jan. 2,
2011
  
Jan. 1,
2012
  
Jan. 2,
2011
 
Numerators (basic and diluted):
            
   Net income (loss) from continuing operations
 $(903) $14,897  $19,966  $54,121 
   Net income (loss) from discontinued operations (including
      gain from divestiture)
  (5,290)  (5,103)  25,742   (15,340)
   Net income (loss)
 $(6,193) $9,794  $45,708  $38,781 
                  
Denominators:
                
   Weighted average shares outstanding - basic
  141,839   151,421   144,792   154,487 
   Dilutive effect of employee stock options and restricted
      stock units
  ---   1,554   1,914   1,038 
Weighted average common shares outstanding, assuming dilution
  141,839   152,975   146,706   155,525 
                  
Basic net income (loss) per share:
                
   Net income (loss) from continuing operations
 $(0.01) $0.10  $0.14  $0.35 
Net income (loss) from discontinued operations
  (0.03)  (0.04)  0.18   (0.10)
Net income (loss)
 $(0.04) $0.06  $0.32  $0.25 
                  
Diluted net income (loss) per share:
                
Net income (loss) from continuing operations
 $(0.01) $0.10  $0.14  $0.35 
Net income (loss) from discontinued operations
  (0.03)  (0.04)  0.17   (0.10)
Net income (loss)
 $(0.04) $0.06  $0.31  $0.25