Per Share Information (Tables)

3 Months Ended

Mar. 31, 2013

Earnings Per Share (Tables)

Schedule Of Earnings Per Share Diluted By Common Class Text Block

		Three Months Ended
(in millions, except per share amounts):		March 31,
		2013		2012
Numerator for basic net income per common share -
	Net income attributable to ATI	$	10.0	$	56.2
Effect of dilutive securities:
	4.25% Convertible Notes due 2014		-		2.3
Numerator for diluted net income per common share -
	Net income available to ATI after assumed conversions	$	10.0	$	58.5
Denominator for basic net income per
	common share-weighted average shares		106.6		105.9
Effect of dilutive securities:
	Share-based compensation		0.5		0.9
	4.25% Convertible Notes due 2014		-		9.6
Denominator for diluted net income per
	common share – adjusted weighted average shares
	assuming conversions		107.1		116.4
Basic net income attributable to ATI per common share		$	0.09	$	0.53
Diluted net income attributable to ATI per common share		$	0.09	$	0.50