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Inventories (Schedule Of Major Classifications Of Inventories) (Details) (USD $) In Thousands | Jul. 31, 2011 | Jul. 31, 2010
--- | --- | ---
Inventories |  |
Finished products | $ 14,179 | $ 9,681
Work in process | 48,575 | 46,681
Raw materials | 104,360 | 78,481
Chassis | 46,548 | 33,335
Subtotal | 213,662 | 168,178
Excess of FIFO costs over LIFO costs | (29,164) | (25,498)
Total inventories | $ 184,498 | $ 142,680

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