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BASIS OF PRESENTATION (Details)	3 Months Ended		6 Months Ended
BASIS OF PRESENTATION (Details)	Jun. 30, 2013	Jul. 01, 2012	Jun. 30, 2013	Jul. 01, 2012
BASIS OF PRESENTATION
Number of days in each interim period	91 days	91 days	182 days	182 days
Options excluded (in shares)	693,550	439,328	626,527	332,802

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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