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OPERATING LEASES (Rental Expense From Continuing Operations Under Nomineral Operating Leases) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
OPERATING LEASES [Abstract]      
Minimum rentals $ 52,713 $ 49,461 $ 42,887
Contingent rentals (based principally on usage) 57,278 60,380 56,717
Total $ 109,991 $ 109,841 $ 99,604