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WORKERS' COMPENSATION INSURANCE AND RESERVES - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 24, 2016
Jun. 26, 2015
Jun. 24, 2016
Jun. 26, 2015
Dec. 25, 2015
Workers' Compensation Deductible Limit [Line Items]          
Workers' compensation claim deductible limit     $ 2.0    
Weighted average period - claim payments below deductible limit     5 years    
Payments made against self-insured claims     $ 37.2 $ 34.4  
Weighted average period - claim payments and receivables above deductible limit     16 years    
Excess claims $ 53.3   $ 53.3   $ 49.0
Workers' compensation claim receivables net of valuation allowance 49.2   49.2   $ 45.2
Workers' compensation expense $ 24.6 $ 22.9 $ 48.7 $ 44.4  
Below limit          
Workers' Compensation Deductible Limit [Line Items]          
Weighted average rate         1.80%