Three Months Ended

December 31,

2012

2011

Net income attributable to common shareholders

$

14.3

$

31.3

Weighted-average shares outstanding — basic (millions)

62.4

62.0

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

0.2

—

Weighted-average shares outstanding — diluted (millions)

62.6

62.0

Earnings per share — basic and diluted

$

0.23

$

0.50