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Income Taxes (Narrative) (Details) (USD $)
3 Months Ended 6 Months Ended 3 Months Ended
Dec. 30, 2012
Dec. 25, 2011
Dec. 30, 2012
Dec. 25, 2011
Jun. 24, 2012
Mar. 31, 2013
Scenario, Forecast [Member]
Components of Income Tax Expense (Benefit) [Line Items]            
Income Tax Expense (Benefit) $ 7,170,000 $ 1,803,000 $ 11,721,000 $ 5,314,000   $ (1,500,000)
U.S. statutory tax rate 35.00%          
Unrecognized tax benefits balance 4,400,000   4,400,000   4,400,000  
Unrecognized tax benefits, changes 0          
Estimated change in unrecognized tax benefits in next 12 months $ 2,200,000   $ 2,200,000