Net Income Per Common Share (Tables)

3 Months Ended

Oct. 31, 2011

Net Income Per Common Share [Abstract]

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

	Three Months Ended
	October 31,
	2011			2010
Numerator: (in thousands)
Net income	$	32,732		$	26,281
Less:
Restricted stock dividends		(57	)		(56	)
Numerator for basic and diluted Class A net income per share	$	32,675		$	26,225
Less:
Preferential dividends		(818	)		(820	)
Preferential dividends on dilutive stock options		(5	)		(6	)
Numerator for basic and diluted Class B net income per share	$	31,852		$	25,399
Denominator: (in thousands)
Denominator for basic net income per share for both Class A and Class B		52,657			52,448
Plus: Effect of dilutive stock options		297			362
Denominator for diluted net income per share for both Class A and Class B	$	52,954		$	52,810
Class A Nonvoting Common Stock net income per share:
Basic	$	0.62		$	0.50
Diluted	$	0.62		$	0.50
Class B Voting Common Stock net income per share:
Basic	$	0.60		$	0.48
Diluted	$	0.60		$	0.48