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Financial Statement Details Financial Statement Details Amount Reclassified out of Accumulated Other Comprehensive Income (Details) (USD $)
 3 Months Ended 9 Months Ended
Mar. 31, 2013
Mar. 25, 2012
Mar. 31, 2013
Mar. 25, 2012
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]        
Other non-operating income (expense), net $ 494,000 $ 324,000 $ 2,622,000 $ 1,187,000
Income before income taxes 25,764,000 7,190,000 74,011,000 37,401,000
Income tax expense (benefit) 3,607,000 (2,299,000) 15,328,000 3,015,000
Net income 22,157,000 9,489,000 58,683,000 34,386,000
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Unrealized Investment Gain (Loss) [Member]
        
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]        
Other non-operating income (expense), net 43,000 4,000 80,000 1,001,000
Income before income taxes 43,000 4,000 80,000 1,001,000
Income tax expense (benefit) 6,000 (1,000) 17,000 81,000
Net income $ 37,000 $ 5,000 $ 63,000 $ 920,000