Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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+ Details

Net Income Per Common Share - Additional Information (Detail) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 01, 2012	Jul. 03, 2011	Jul. 01, 2012	Jul. 03, 2011
Stock Options
Net Income Loss Per Common Share
Computation of diluted net income per common excluding the effect of the potential exercise of stock options and restricted stock units	0.3	0.5	0.3	1.0
Restricted Stock Units
Net Income Loss Per Common Share
Computation of diluted net income per common excluding the effect of the potential exercise of stock options and restricted stock units	0.1		0.1