Year Ended September 30,

2013

2012

2011

Net income(1)

$

63.4

$

104.8

$

106.1

Weighted average shares outstanding — basic (in millions)

62.7

62.2

62.0

Effect of dilutive stock options and unvested time-based restricted stock (in millions)

0.3

0.2

—

Weighted average shares outstanding — diluted (in millions)

63.0

62.4

62.0

Earnings per share — basic

$

1.01

$

1.68

$

1.71

Earnings per share — diluted

$

1.01

$

1.68

$

1.71

Anti-dilutive effect of stock options and unvested time-based restricted stock excluded from the computation of diluted earnings per share (millions)

1.3

2.0

1.9