Debt - Components of Debt (Parenthetical) (Detail)	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Nov. 13, 2009
8.375% Senior Notes Due in 2017 [Member]
Debt Instrument [Line Items]
Interest rate on notes	8.375%	8.375%
Debt instrument maturity year	2017
Discount rate on issue of senior notes			1.425%
8.125% Senior Notes Due in 2018 [Member]
Debt Instrument [Line Items]
Interest rate on notes	8.125%	8.125%
Debt instrument maturity year	2018