Financing Arrangements (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended		0 Months Ended			12 Months Ended	0 Months Ended			1 Months Ended			12 Months Ended		12 Months Ended		0 Months Ended		12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Apr. 27, 2006 5.85% notes due April 2016	Dec. 31, 2012 5.85% notes due April 2016	Dec. 31, 2011 5.85% notes due April 2016	Dec. 31, 2012 5.85% notes due April 2016 Minimum	May 15, 2003 5.47% notes due May 2013	Dec. 31, 2012 5.47% notes due May 2013	Dec. 31, 2011 5.47% notes due May 2013	Jun. 30, 2010 5.05% notes due June 2020	Dec. 31, 2012 5.05% notes due June 2020	Dec. 31, 2011 5.05% notes due June 2020	Dec. 31, 2012 5.05% notes due June 2020 Minimum	Dec. 31, 2011 Eurocurrency rate loans	Dec. 31, 2012 Other consists primarily of European borrowings (at interest rates ranging from 4.1% to 6.0%)	Dec. 31, 2011 Other consists primarily of European borrowings (at interest rates ranging from 4.1% to 6.0%)	May 15, 2003 Senior unsecured notes	May 15, 2003 4.87% senior notes due 2010	Dec. 31, 2010 4.87% senior notes due 2010
Financing Arrangements
Interest rate (as a percent)				5.85%			5.47%	5.47%			5.05%							4.87%
Minimum interest rate (as a percent)															5.00%
Maximum interest rate (as a percent)															6.00%
Total debt	$ 384.6	$ 399.4		$ 225.0	$ 225.0			$ 75.0	$ 75.0		$ 75.0	$ 75.0		$ 13.0	$ 9.6	$ 11.4
Less Current Maturities	77.1	2.0
Long-term debt, net of current portion	307.5	397.4
Principal amount of notes issued			225.0				75.0			75.0							125.0	50.0
Term of letters of credit from the date of issuance	1 year
Optional amount that the Company may prepay						1.0							1.0
Debt repaid																			50.0
Principal payments during each of the next five years and thereafter
2013	77.1
2014	2.2
2015	2.2
2016	228.1
2017	0
Thereafter	75.0
Letters of credit outstanding	$ 34.8	$ 34.9