Net Income (Loss) Per Common Share (Tables)

9 Months Ended

Apr. 30, 2012

Net Income (Loss) Per Common Share [Abstract]

Reconciliations of the numerator and denominator of the basic and diluted per share

	Three Months Ended April 30,						Nine Months Ended April 30,
	2012			2011			2012			2011
Numerator: (in thousands)
Net income (loss)	$	27,652		$	28,589		$	(29,570	)	$	79,069
Less:
Restricted stock dividends		(57	)		(56	)		(172	)		(168	)
Numerator for basic and diluted Class A net income (loss) per share	$	27,595		$	28,533		$	(29,742	)	$	78,901
Less:
Preferential dividends		—			—			(818	)		(820	)
Preferential dividends on dilutive stock options		—			—			(5	)		(6	)
Numerator for basic and diluted Class B net income (loss) per share	$	27,595		$	28,533		$	(30,565	)	$	78,075
Denominator: (in thousands)
Denominator for basic net income (loss) per share for both Class A and Class B		52,513			52,701			52,539			52,581
Plus: Effect of dilutive stock options		490			636			—			486
Denominator for diluted net income (loss) per share for both Class A and Class B		53,003			53,337			52,539			53,067
Class A Nonvoting Common Stock net income (loss) per share:
Basic	$	0.53		$	0.54		$	(0.57	)	$	1.50
Diluted	$	0.52		$	0.54		$	(0.57	)	$	1.49
Class B Voting Common Stock net income (loss) per share:
Basic	$	0.53		$	0.54		$	(0.58	)	$	1.48
Diluted	$	0.52		$	0.54		$	(0.58	)	$	1.47