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Inventories (Schedule Of Inventories) (Details) (USD $) In Thousands, unless otherwise specified	Aug. 31, 2014	Aug. 31, 2013
Inventories [Abstract]
Raw materials and supplies	$ 19,953	$ 19,369
Work in process	9,990	5,665
Finished goods and purchased parts	48,300	50,038
Total inventory value before LIFO adjustment	78,243	75,072
Less adjustment to LIFO value	(6,547)	(6,465)
Inventories, net	$ 71,696	$ 68,607

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Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

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Amount of difference between inventory at lower of LIFO cost or market and inventory at lower of other inventory accounting method cost or market, for example, but not limited to, FIFO or average cost.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Gross amount of unprocessed materials to be used in manufacturing or production process and supplies that will be consumed.

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Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

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