Net Income Per Share (Tables)

9 Months Ended

Oct. 31, 2021

Earnings Per Share [Abstract]

Schedule of Computation of the Numerators and Denominators Used in the Basic and Diluted Net Loss Per Share Amounts

The following table sets forth the computation of the numerators and denominators used in the basic and diluted net income per share amounts:

	Three Months Ended October 31,				Nine Months Ended October 31,
	2021		2020		2021		2020
Numerator:
Net income	$	136.7	$	132.2	$	407.9	$	296.9
Denominator:
Denominator for basic net income per share—weighted average shares	220.0		219.6		219.8		219.4
Effect of dilutive securities	2.5		2.7		2.5		2.7
Denominator for dilutive net income per share	222.5		222.3		222.3		222.1
Basic net income per share	$	0.62	$	0.60	$	1.86	$	1.35
Diluted net income per share	$	0.61	$	0.59	$	1.83	$	1.34