Employee Incentive Plans (Tables)

12 Months Ended

Dec. 31, 2012

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Compensation expense relating to short term incentive plans

Total costs relating to STI Plans were recorded as follows, for each period presented:

	Year Ended December 31,
	2012		2011		2010
Cost of products sold, excluding depreciation and amortization and other items	$	4.3	$	3.2	$	2.9
Selling, administrative, research and development, and general	10.1		5.2		3.9
Total costs recorded in connection with STI Plans	$	14.4	$	8.4	$	6.8

The following table presents the allocation of the charges detailed above, by segment:

	Year Ended December 31,
	2012		2011		2010
Fabricated Products segment	$	9.9	$	5.9	$	4.8
All Other	4.5		2.5		2.0
Total costs recorded in connection with STI Plans	$	14.4	$	8.4	$	6.8

Non-cash compensation expense

Recorded non-cash compensation expense by type of award under LTI programs were as follows, for each period presented:

	Year Ended December 31,
	2012		2011		2010
Service-based non-vested common shares and restricted stock units	$	3.8	$	4.1	$	3.6
Performance shares	1.8		1.1		0.8
Service-based stock options	—		—		0.1
Total non-cash compensation expense	$	5.6	$	5.2	$	4.5

The following table presents the allocation of the charges detailed above, by segment:

	Year Ended December 31,
	2012		2011		2010
Fabricated Products	$	1.7	$	1.5	$	1.4
All Other	3.9		3.7		3.1
Total non-cash compensation expense	$	5.6	$	5.2	$	4.5

Unrecognized gross compensation cost data

The following table presents unrecognized gross compensation cost data, by type of award:

	December 31, 2012
	Unrecognized gross compensation costs, by award type		Expected period (in years) over which the remaining gross compensation costs will be recognized, by award type
Service-based non-vested common shares and restricted stock units	$	3.4	1.5
Performance shares	$	4.1	1.9

Summary of activity of non-vested common shares, restricted stock units, and performance shares

A summary of the activity with respect to non-vested common shares, restricted stock units and performance shares for the year ended December 31, 2012 is as follows:

	Non-Vested Common Shares				Restricted Stock Units				Performance Shares
	Shares		Weighted-Average Grant-Date Fair Value per Share		Units		Weighted-Average Grant-Date Fair Value per Unit		Shares		Weighted-Average Grant-Date Fair Value per Share
Outstanding at December 31, 2011	202,836		$	29.24	6,072		$	33.67	777,934		$	26.84
Granted	92,949		45.03		2,486		44.46		215,579		44.47
Vested	(134,746	)	24.30		(3,375	)	25.77		(7,952	)	18.89
Forfeited	(2,355	)	43.91		—		—		—		—
Canceled	—		—		—		—		(401,611	)	14.73
Outstanding at December 31, 2012	158,684		$	42.47	5,183		$	43.99	583,950		$	41.78