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PROPERTY, PLANT AND EQUIPMENT (Details 2) - USD ($)
$ in Thousands
12 Months Ended
Dec. 26, 2015
Dec. 27, 2014
Dec. 28, 2013
Operating leases      
Rental expense for operating leases $ 25,546 $ 28,580 $ 26,567
Minimum lease payments under operating leases      
2016 20,816    
2017 17,824    
2018 13,587    
2019 9,510    
2020 7,894    
Subsequent 31,986    
Total minimum lease payments $ 101,617