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Inventories (Schedule Of Inventories) (Details) - USD ($)
$ in Thousands
Aug. 31, 2016
Aug. 31, 2015
Inventories [Abstract]    
Raw materials and supplies $ 26,599 $ 29,427
Work in process 5,742 7,318
Finished goods and purchased parts 47,805 44,269
Total inventory value before LIFO adjustment 80,146 81,014
Less adjustment to LIFO value (5,396) (6,084)
Inventories, net $ 74,750 $ 74,930