Earnings Per Common Share (Tables)

6 Months Ended

Dec. 31, 2011

Earnings Per Common Share [Abstract]

Computation Of Basic And Diluted Earnings Per Common Share

	Three Months Ended								Six Months Ended
	December 31,								December 31,
(in millions, except per share data)	2011				2010				2011				2010
Net income attributable to Carpenter		$	23.6			$	9.3			$	47.4			$	16.9
Less: earnings and dividends allocated to participating securities			(0.2	)			(0.1	)			(0.4	)			(0.2	)
Earnings available to Carpenter common stockholders		$	23.4			$	9.2			$	47.0			$	16.7
Weighted average number of common shares outstanding, basic			44.4				44.1				44.4				44.1
Effect of shares issuable under share based compensation plans			0.7				0.6				0.7				0.5
Weighted average number of common shares outstanding, diluted			45.1				44.7				45.1				44.6
Basic earnings per common share		$	0.53			$	0.21			$	1.06			$	0.38
Diluted earnings per common share		$	0.52			$	0.21			$	1.05			$	0.38

Share-Based Compensation Plans Excluded From The Calculations Of Diluted Earnings Per Share

	Three Months Ended				Six Months Ended
	December 31,				December 31,
(in millions)	2011		2010		2011		2010
Stock options		0.1		0.4		0.1		0.4
Restricted stock awards		—		0.1		—		0.1