Net income per common share (Tables)

3 Months Ended

Sep. 30, 2011

Notes to Financial Statements [Abstract]

Schedule computation of basic and diluted earnings per share

The following table sets forth the computation of basic and diluted net income per common share from continuing operations (in thousands, except per share amounts):

	Three Months Ended				Six Months Ended
	September 30,				September 30,
	2011		2010		2011		2010
Net income from continuing operations	$	79,287	$	104,748	$	178,580	$	196,625
Weighted average common shares outstanding	190,809		186,303		190,461		185,922
Dilutive effect of stock options and RSUs	4,107		4,401		4,332		4,466
Dilutive effect of convertible debt	5,283		—		7,590		—
Weighted average common and potential common shares outstanding	200,199		190,704		202,383		190,388
Basic net income per common share – continuing operations	$	0.42	$	0.56	$	0.94	$	1.06
Diluted net income per common share – continuing operations	$	0.40	$	0.55	$	0.88	$	1.03