Condensed Consolidated Statements Of Shareholders' Equity (USD $) In Millions, except Share data	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income [Member]	Total
Balance at Dec. 31, 2012	$ 0.6	$ 1,076.8	$ 113.1		$ (471.4)	$ 719.1
Common stock shares, balance at Dec. 31, 2012	58,934,050
Stock issuance	247,826
Share-based employee compensation		10.4				10.4
Net earnings			32.9			32.9
Other comprehensive income					16.5	16.5
Balance at Jun. 30, 2013	0.6	1,087.2	146.0		(454.9)	778.9
Common stock shares, balance at Jun. 30, 2013	59,181,876
Balance at Dec. 31, 2013	0.6	1,098.4	207.2	(261.4)	(371.6)	673.2
Treasury stock shares, balance at Dec. 31, 2013				5,057,382		5,057,382
Common stock shares, balance at Dec. 31, 2013	54,406,927					54,406,927
Stock issuance	425,566
Share-based employee compensation		18.6				18.6
Net earnings			35.8			35.8
Other comprehensive income					10.7	10.7
Balance at Jun. 30, 2014	$ 0.6	$ 1,117.0	$ 243.0	$ (261.4)	$ (360.9)	$ 738.3
Treasury stock shares, balance at Jun. 30, 2014				5,057,382		5,057,382
Common stock shares, balance at Jun. 30, 2014	54,832,493					54,832,493