Year Ended September 30,

2023

2022

2021

Income (loss) from continuing operations

$

(380.1)

$

(437.5)

$

517.3

Net income attributable to noncontrolling interest

—

(0.9)

Income (loss) attributable to controlling interest from continuing operations

(380.1)

(437.5)

516.4

Loss from discontinued operations, net of tax

—

(3.9)

Net income (loss) attributable to controlling interest

$

(380.1)

$

(437.5)

$

512.5

Basic income (loss) per common share:

Weighted-average common shares outstanding
during the period

56.0

55.5

55.7

Income (loss) from continuing operations

$

(6.79)

$

(7.88)

$

9.27

Loss from discontinued operations

—

(0.07)

Basic net income (loss) per common share

$

(6.79)

$

(7.88)

$

9.20

Diluted income (loss) per common share:

Weighted-average common shares outstanding
during the period

56.0

55.5

55.7

Dilutive potential common shares

—

1.5

Weighted-average number of common shares outstanding and dilutive potential common shares

56.0

55.5

57.2

Income (loss) from continuing operations

$

(6.79)

$

(7.88)

$

9.03

Loss from discontinued operations

—

(0.07)

Diluted net income (loss) per common share

$

(6.79)

$

(7.88)

$

8.96

Antidilutive stock options outstanding

0.4

0.2

0.1