Accounting Policies (Tables)

3 Months Ended

12 Months Ended

Jul. 31, 2011

Apr. 30, 2011

Accounting Policies (Tables) [Abstract]

Share based payments

	Three Months Ended
	July 31,
	2011		2010
Share-based compensation expense included in selling, distribution, and administrative expenses	$	5,151	$	4,340
Share-based compensation expense included in other merger and integration costs		881		988
Share-based compensation expense included in other restructuring costs		43		64
Total share-based compensation expense	$	6,075	$	5,392
Related income tax benefit	$	2,014	$	1,688

The following table summarizes amounts related to share-based payments.

			April 30,
	2011		2010		2009
Share-based compensation expense included in selling, distribution, and administrative expenses	$	19,896	$	20,687	$	14,043
Share-based compensation expense included in merger and integration costs		4,148		5,262		8,062
Share-based compensation expense included in other restructuring costs		290		0		0
Total share-based compensation expense	$	24,334	$	25,949	$	22,105
Related income tax benefit	$	8,064	$	8,402	$	7,261