Fair Value Measurements - Assets and Liabilities Recorded at Fair Value on Recurring Basis (Detail) (USD $) In Millions, unless otherwise specified	Dec. 29, 2012	Dec. 31, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	$ 0.1	$ 0.2
Assets held for sale	0.1	1.2
Total Assets	0.2	1.4
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives
Assets held for sale
Total Assets
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	0.1	0.2
Assets held for sale		1.2
Total Assets	0.1	1.4
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives
Assets held for sale	0.1
Total Assets	$ 0.1