Net Earnings (Loss) Per Common Unitholders' Interest (Tables)

6 Months Ended

Jan. 31, 2012


	For the three months ended January 31,				For the six months ended January 31,
	For the three months ended January 31,				For the six months ended January 31,
	2012		2011		2012		2011

Common unitholders' interest in net earnings (loss)	$	36,010	$	21,908	$	3,732	$	(5,855	)

Weighted average common units outstanding (in thousands)		76,401.6		70,668.8		76,184.0		70,114.2

Dilutive securities		62.2		131.3		65.1		0.0

Weighted average common units outstanding plus dilutive securities		76,463.8		70,800.1		76,249.1		70,114.2

Basic and diluted net earnings (loss) per common unitholders' interest	$	0.47	$	0.31	$	0.05	$	(0.08	)