Inventories (Tables)

6 Months Ended

Jan. 31, 2013

Inventories [Abstract]

Components Of Inventory

	January 31, 2013		July 31, 2012
Materials	$	108,694	$	111,808
Work in process		33,076		30,767
Finished products		120,162		113,541
Total inventories	$	261,932	$	256,116