Supplemental disclosure of cash flow information

12 Months Ended

Jul. 31, 2012

Supplemental disclosure of cash flow information

18. Supplemental disclosure of cash flow information:

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	)

Supplemental disclosure of non-cash investing activities:

The Company had accrued milestone payments towards the construction of manufacturing facilities in Shanghai, China, and State College, PA, of $1,755, $1,785, and $0 at July 31, 2012, 2011, and 2010 respectively.