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Stockholder's Equity (Tables)
6 Months Ended
Sep. 24, 2011
Stockholder's Equity [Abstract] 
Components Of Comprehensive Income

Three Months Ended

Six Months Ended

September 24,

September 25,

September 24,

September 25,

2011

2010

2011

2010

Net income

 $                11,247

 $                30,874

 $                20,425

 $                48,476

Adjustments to arrive at comprehensive income:

Change in unrealized gain on marketable securities

                      (135)

                        127

                      (130)

                          27

Comprehensive income

 $                11,112

 $                31,001

 $                20,295

 $                48,503