Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2012

Stockholders' Equity Note [Abstract]

Schedule of Capital Stock

Information regarding the Company’s capital stock at December 31 follows:

	Shares Authorized		Shares Issued
	2012	2011	2012	2011
$25 par, 4% noncumulative, preferred stock	840,000	840,000	649,736	649,736
$1 par, preferred stock	2,000,000	2,000,000	—	—
$.01 par, common stock	400,000,000	400,000,000	123,352,185	123,352,185

Shares outstanding at December 31:

	2012	2011
$25 par, 4% noncumulative, preferred stock	242,170	242,170
$.01 par, common stock	110,131,353	109,910,857

Schedule of Treasury Stock

Shares of common stock in Treasury and related activity follow:

	2012		2011		2010
Balance at beginning of year	13,441,328		13,703,453		14,369,722
Shares issued to fund stock option exercises	(141,728	)	(158,440	)	(480,514	)
Employee stock purchase plan shares issued	(44,319	)	(59,390	)	(110,850	)
Nonvested shares issued	(56,136	)	(57,659	)	(143,457	)
Nonvested shares forfeited	21,687		13,364		68,552
Balance at end of year	13,220,832		13,441,328		13,703,453

Schedule of Accumulated Other Comprehensive Loss

The following table summarizes the changes in the after-tax balances of each component of accumulated other comprehensive loss (in millions):

	Postemployment Benefits			Foreign Currency Translation Adjustment			Unrealized Loss on Cash Flow Hedges			Accumulated Other Comprehensive Loss
Balance at December 31, 2010	$	0.7		$	(1.9	)	$	(0.2	)	$	(1.4	)
Other comprehensive income (loss)	(0.2		)	(0.8		)	0.2			(0.8		)
Balance at December 31, 2011	0.5			(2.7		)	—			(2.2		)
Other comprehensive income (loss)	(0.1		)	0.5			(0.6		)	(0.2		)
Balance at December 31, 2012	$	0.4		$	(2.2	)	$	(0.6	)	$	(2.4	)