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SEGMENT INFORMATION (Assets by segment) (Details) - USD ($)
$ in Thousands
Jan. 02, 2016
Oct. 03, 2015
Segment assets:    
Total assets $ 884,092 $ 904,466
Equipment [Member]    
Segment assets:    
Total assets 799,245 828,471
Expendable Tools [Member]    
Segment assets:    
Total assets $ 84,847 $ 75,995