Long-Term Debt (Detail) (USD $) In Thousands	Jun. 26, 2011	Dec. 26, 2010
Debt Disclosure [Line Items]
Long-term Debt	$ 2,021,587	$ 2,352,242
Unsecured Fixed Rate Notes 5.75 Percent Paid June 2011
Debt Disclosure [Line Items]
Long-term Debt		433,196
Unsecured Floating Rate Term Loan Due July 2011
Debt Disclosure [Line Items]
Long-term Debt	180,000	180,000
Unsecured notes bearing fixed rate interest at 6.375% due April 2012
Debt Disclosure [Line Items]
Long-term Debt	306,465	306,397
Borrowings under revolving credit agreements expiring September 2014
Debt Disclosure [Line Items]
Long-term Debt	320,000	221,000
Unsecured notes bearing fixed rate interest at 8.75% due November 2014
Debt Disclosure [Line Items]
Long-term Debt	247,261	246,924
Unsecured notes bearing fixed rate interest at 10% due June 2015
Debt Disclosure [Line Items]
Long-term Debt	58,739	58,007
Unsecured notes bearing fixed rate interest at 6.375% due September 2015
Debt Disclosure [Line Items]
Long-term Debt	247,761	247,535
Unsecured notes bearing fixed rate interest at 10% due April 2016
Debt Disclosure [Line Items]
Long-term Debt	167,788	165,950
Unsecured notes bearing fixed rate interest at 9.375% due November 2017
Debt Disclosure [Line Items]
Long-term Debt	246,995	246,830
Unsecured notes bearing fixed rate interest at 7.125% due September 2018
Debt Disclosure [Line Items]
Long-term Debt	$ 246,578	$ 246,403