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Accumulated Other Comprehensive Loss - Reclassification Out of Accumulated Other Comprehensive Loss (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended
Dec. 26, 2013
Dec. 27, 2012
Dec. 26, 2013
Dec. 27, 2012
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Total before tax $ 223 $ 240 $ 445 $ 479
Tax effect (89) (95) (178) (191)
Amortization of defined pension items, net of tax 134 145 267 288
Amortization of defined benefit pension items [Member] | Amount Reclassified from AOCL [Member]
        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Total before tax (223)   (445)  
Tax effect 89   178  
Amortization of defined pension items, net of tax (134)   (267)  
Amortization of defined benefit pension items [Member] | Amount Reclassified from AOCL [Member] | Administrative Expenses [Member]
        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Unrecognized prior service cost (240)   (479)  
Unrecognized net gain $ 17   $ 34