Earnings per Share Information

The table below provides, for the periods indicated, information pertaining to the calculation of earnings per share, common stock equivalents, weighted-average number of antidilutive options, and shares issued (amounts in thousands):



	Six months ended April 30,				Three months ended April 30,
	2018		2017		2018		2017
Numerator:
Net income as reported	$	243,917	$	195,054	$	111,810	$	124,638
Plus interest and costs attributable to 0.5% Exchangeable Senior Notes, net of income tax benefit (a)			769				385
Numerator for diluted earnings per share	$	243,917	$	195,823	$	111,810	$	125,023

Denominator:
Basic weighted-average shares	154,306		163,040		152,731		163,492
Common stock equivalents (b)	2,707		2,011		2,398		2,051
Shares attributable to 0.5% Exchangeable Senior Notes (a)			5,859				5,860
Diluted weighted-average shares	157,013		170,910		155,129		171,403

Other information:
Weighted-average number of antidilutive options and restricted stock units (c)	823		3,535		278		1,865
Shares issued under stock incentive and employee stock purchase plans	880		1,974		57		694


(a)	On September 15, 2017, we redeemed these notes for cash.


(b)	Common stock equivalents represent the dilutive effect of outstanding in-the-money stock options using the treasury stock method and shares expected to be issued upon the conversion of restricted stock units under our equity award programs.


(c)	Weighted-average number of antidilutive options and restricted stock units are based upon the average closing price of our common stock on the New York Stock Exchange for the period.