Supplemental disclosure of cash flow information (Tables)

12 Months Ended

Jul. 31, 2012

Net Changes in Operating Assets and Liabilities

Changes in operating assets and liabilities, net of the impact of acquisitions, are as follows:

	Year Ended July 31,
	2012			2011			2010
Accounts and notes receivable	$	(8,258	)	$	(17,099	)	$	(12,703	)
Inventories		(4,765	)		(16,821	)		(7,435	)
Other assets		2,525			2,578			(2,506	)
Refundable income taxes		312			(315	)		2,831
Accounts payable, trade		1,548			12,490			2,654
Accrued liabilities		3,948			4,078			2,489
Other liabilities		265			2,405			625
Advance payments and deferred revenue		5,471			(54	)		1,535
Accrued income taxes		3,850			1,298			2,387
Net changes in operating assets and liabilities	$	4,896		$	(11,440	)	$	(10,123	)