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Long-Term Debt (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 30, 2012
Dec. 25, 2011
Debt Disclosure [Line Items]    
Long-term Debt $ 1,432,100 $ 1,760,363
Unsecured notes bearing fixed rate interest at 6.375% due April 2012
   
Debt Disclosure [Line Items]    
Long-term Debt 0 306,534
Borrowings under revolving credit agreements expiring September 2014
   
Debt Disclosure [Line Items]    
Long-term Debt 205,000 235,000
Unsecured notes bearing fixed rate interest at 8.75% due November 2014
   
Debt Disclosure [Line Items]    
Long-term Debt 248,376 247,609
Unsecured notes bearing fixed rate interest at 10% due June 2015
   
Debt Disclosure [Line Items]    
Long-term Debt 61,286 59,522
Unsecured notes bearing fixed rate interest at 6.375% due September 2015
   
Debt Disclosure [Line Items]    
Long-term Debt 248,497 247,995
Unsecured notes bearing fixed rate interest at 10% due April 2016
   
Debt Disclosure [Line Items]    
Long-term Debt 174,241 169,775
Unsecured notes bearing fixed rate interest at 9.375% due November 2017
   
Debt Disclosure [Line Items]    
Long-term Debt 247,547 247,168
Unsecured notes bearing fixed rate interest at 7.125% due September 2018
   
Debt Disclosure [Line Items]    
Long-term Debt $ 247,153 $ 246,760