Stock Compensation Plan (Tables)

9 Months Ended

Sep. 30, 2012

Stock Compensation Plan

Schedule of stock-based compensation expense and related income tax benefits

	Three Months Ended September 30,						Nine Months Ended September 30,
	2012			2011			2012			2011
Stock-based compensation expense	$	0.9		$	0.9		$	3.9		$	3.1
Income tax benefit	(0.3		)	(0.4		)	(1.5		)	(1.2		)
Stock-based compensation, net of income tax benefit	$	0.6		$	0.5		$	2.4		$	1.9

Schedule of total compensation costs related to the Company's equity awards and amounts recognized

	Stock Options and SARs			Performance shares and RSUs
Unrecognized compensation cost — December 31, 2011	$	0.8		$	2.4
Grant date fair value of current year grants	2.0			4.1
Compensation expense recognized	(1.0		)	(2.9		)
Estimated forfeitures for awards granted in prior years	—			0.1
Unrecognized compensation cost — September 30, 2012	$	1.8		$	3.7
Expected amortization period (in years)	3.2			1.8

Schedule of assumptions used to determine the grant date fair value of options granted

	Nine months Ended September 30, 2012
Expected term in years	4.9
Risk free interest rate	1.1	%
Volatility	45.4	%
Dividend yield	2.0	%