Inventories (Tables)

3 Months Ended

Oct. 31, 2011

Inventories [Abstract]

Components Of Inventory

	October 31, 2011		July 31, 2011
Materials	$	112,443	$	110,466
Work in process		36,904		33,917
Finished products		124,825		127,093
Total inventories	$	274,172	$	271,476