The charge against earnings in the period for known and estimated costs of termination benefits provided to current employees that are involuntarily terminated under a benefit arrangement associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding costs or losses pertaining to an entity newly acquired in a business combination or a discontinued operation as defined by generally accepted accounting principles and costs associated with one-time termination benefits.

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+ Details

Severance and Other Charges - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 25, 2011	Jun. 30, 2012
Severance And Other Charges [Line Items]
Severance charges	$ 8.3
Severance charges remain unpaid		2.8
CANADA
Severance And Other Charges [Line Items]
Severance charges	3.6
AUSTRALIA
Severance And Other Charges [Line Items]
Severance charges	1.4
UNITED STATES
Severance And Other Charges [Line Items]
Severance charges	3.3
Contract
Severance And Other Charges [Line Items]
Severance charges	8.0
Retail
Severance And Other Charges [Line Items]
Severance charges	$ 0.3