Net Income Per Common Share (Tables)

12 Months Ended

Mar. 31, 2021

Earnings Per Share [Abstract]

Schedule of Computation of Basic and Diluted Earnings Per Share

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

	Fiscal Year Ended March 31,
	2021		2020		2019
Net income	$	349.4	$	570.6	$	355.9
Basic weighted average common shares outstanding	259.6		238.9		236.2
Dilutive effect of stock options and RSUs	3.5		3.4		3.8
Dilutive effect of 2015 Senior Convertible Debt	4.7		13.7		9.9
Dilutive effect of 2017 Senior Convertible Debt	1.7		0.1		—
Dilutive effect of 2020 Senior Convertible Debt	—		—		—
Dilutive effect of 2017 Junior Convertible Debt	1.1		0.1		—
Diluted weighted average common shares outstanding	270.6		256.2		249.9
Basic net income per common share	$	1.35	$	2.39	$	1.51
Diluted net income per common share	$	1.29	$	2.23	$	1.42

Schedule of Convertible Debt

The following is the weighted average conversion price per share used in calculating the dilutive effect (see Note 7 for details on the Convertible Debt):

	Fiscal Year Ended March 31,
	2021		2020		2019
2015 Senior Convertible Debt	$	60.90	$	61.80	$	62.86
2017 Senior Convertible Debt	$	94.96	$	96.37	$	98.03
2020 Senior Convertible Debt	$	186.86	$	—	$	—
2017 Junior Convertible Debt	$	93.30	$	94.68	$	96.31