Income Taxes (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Changes in liability for unrecognized tax benefits [Roll forward]
Beginning Balance	$ 5.0	$ 5.6
Additions for tax positions taken in the current year	1.3	0.6
Additions for tax positions of prior years	0.7	1.1
Reduction for expiration of statute of limitations/audits	(0.7)	(2.3)
Ending Balance	6.3	5.0	5.6
Income tax uncertainties [Abstract]
Accrued liabilities for interest and penalties	0.4	0.4
Tax-related interest expense	0.1
Tax-related interest income		0.1
Unrecognized tax benefits that would favorably impact the effective income tax rate	5.9
Amount of unrecognized tax benefits which may change	0.3
U.S. operations	15.8	7.2	6.5
International operations	76.9	67.3	76.6
Income before income taxes	92.7	74.5	83.1
Current: [Abstract]
Federal	0	0.6	0.3
State	0	0.2	0.1
International	20.6	14.6	17.9
Current income tax provision	20.6	15.4	18.3
Deferred: [Abstract]
Federal and state	2.7	(0.5)	(5.1)
International	0.2	(1.3)	0.3
Deferred income tax provision	2.9	(1.8)	(4.8)
Income tax expense	23.5	13.6	13.5
Deferred tax assets [Abstract]
Net operating loss carryforwards	21.7	28.1
Tax credit carryforwards	42.5	33.3
Restructuring and impairment charges	1.7	5.5
Capital loss carryforwards	0	1.4
Pension and deferred compensation	62.3	48.6
Other	9.3	8.7
Valuation allowance	(19.3)	(24.9)
Total deferred tax assets	118.2	100.7
Deferred tax liabilities: [Abstract]
Accelerated depreciation	41.2	39.5
Other	6.5	7.1
Total deferred tax liabilities	47.7	46.6
Net deferred tax asset	70.5	54.1
U.S. federal corporate tax rate	35.00%	35.00%	35.00%
Tax on international operations less than U.S. tax rate	(8.90%)	(11.00%)	(7.60%)
Non-benefited losses	0.00%	1.40%	2.00%
Reversal of prior valuation allowance	(0.10%)	(0.20%)	(1.20%)
Reversal of reserves for unrecognized tax benefits	0.00%	(3.00%)	(3.40%)
U.S. tax on international earnings, net of foreign tax credits	(1.50%)	(2.20%)	(3.20%)
State income taxes, net of federal tax effect	0.70%	(1.60%)	(1.10%)
General business credits and Section 199 Deduction	(2.40%)	(1.50%)	(5.40%)
Other	2.50%	1.40%	1.10%
Effective tax rate	25.30%	18.30%	16.20%
Operating Loss Carryforwards [Line Items]
Deferred tax asset attributable to carryforwards	21.7	28.1
Tax credit carryforwards, expiration date [Abstract]
Undistributed earnings reinvested indefinitely in foreign subsidiaries	568.2
Federal Jurisdiction [Member] | Research and Development [Member]
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	9.2
Tax credit carryforwards, expiration date [Abstract]
2021	0.1
2022	0.5
Expiring after 2022	8.6
Foreign Jurisdiction [Member]
Deferred tax assets [Abstract]
Net operating loss carryforwards	6.6
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	26.3
Deferred tax asset attributable to carryforwards	6.6
Foreign loss carryforwards with no expiration date	15.7
Foreign Jurisdiction [Member] | Foreign Credit [Member]
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	27.5
Tax credit carryforwards, expiration date [Abstract]
2012	2.6
2014	0.4
2015	3.5
2016	1.8
2017	2.4
2018	1.9
2019	3.1
2020	3.2
2021	8.6
State Jurisdiction [Member]
Deferred tax assets [Abstract]
Net operating loss carryforwards	15.1
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	255.4
Deferred tax asset attributable to carryforwards	15.1
State loss carryforwards expiring in 2013	0.1
State loss carryforwards expiring after 2013	255.3
State Jurisdiction [Member] | Research and Development [Member]
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	3.5
Tax credit carryforwards, expiration date [Abstract]
2021	0.8
2022	0.8
Expiring after 2022	$ 1.9