Earnings Per Share

9 Months Ended

Oct. 31, 2013

Earnings Per Share [Abstract]

Earnings Per Share

EARNINGS PER SHARE

Basic earnings per share (“EPS”) is computed as net earnings divided by the weighted-average number of common shares outstanding for the period. Diluted EPS includes the dilutive effect of the assumed exercise of stock options and unvested restricted stock units.

The following table summarizes the reconciliation of the numerators and denominators for the basic and diluted EPS computations:

	Three Months Ended   October 31,				Nine Months Ended   October 31,
(in thousands)	2013		2012		2013		2012
Net earnings for basic and diluted EPS	$	94,610	$	63,179	$	284,968	$	236,514
Weighted-average shares for basic EPS	128,004		126,737		127,716		126,697
Incremental shares based upon the assumed exercise of    stock options and unvested restricted stock units	970		1,165		1,013		1,217
Weighted-average shares for diluted EPS	128,974		127,902		128,729		127,914

For the three months ended October 31, 2013 and 2012, there were 350,000 and 758,000 stock options and restricted stock units excluded from the computations of earnings per diluted share due to their antidilutive effect. For the nine months ended October 31, 2013 and 2012, there were 509,000 and 843,000 stock options and restricted stock units excluded from the computations of earnings per diluted share due to their antidilutive effect.