Income Taxes (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Domestic and foreign components of income before taxes:
Domestic	$ (11.6)	$ (25.3)	$ (12.5)
Foreign	149.9	170.8	162.6
Total	138.3	145.5	150.1
Current income tax (benefit) expense:
Federal	1.4	(0.6)	0.3
State	0.9	0.2
Foreign	69.5	56.7	56.6
Total current income tax expense	71.8	56.3	56.9
Deferred income tax (benefit):
Federal	1.2	(3.8)	0.3
State		(0.9)
Foreign	(12.9)	(0.1)	(3.9)
Total deferred income tax (benefit)	(11.7)	(4.8)	(3.6)
Income tax provision	60.1	51.5	53.3
Reconciliation of United States federal statutory rate to effective income tax rate
Statutory tax rate (as a percent)	35.00%	35.00%	35.00%
Foreign tax rate differential (as a percent)	(7.20%)	(8.00%)	(5.70%)
Permanent differences (as a percent)	18.70%	12.80%	13.70%
Tax contingencies (as a percent)	3.00%	6.10%	4.40%
Change in tax rates (as a percent)	(0.70%)	0.20%	0.10%
Withholding taxes (as a percent)	0.30%		(1.30%)
State income taxes, net of federal benefits (as a percent)	0.30%	(0.30%)	0.70%
Purchase accounting (as a percent)	0.90%	(3.00%)	0.20%
Tax Credits (as a percent)	(9.50%)	(5.10%)	(4.10%)
Other (as a percent)	0.10%	(1.50%)	(0.50%)
Change in valuation allowance for unbenefitted losses (as a percent)	2.60%	(0.80%)	(7.00%)
Effective tax rates (as a percent)	43.50%	35.40%	35.50%
Deferred tax assets:
Accounts receivable	1.3
Accrued expenses	0.8	6.1
Compensation	8.6	8.2
Investments	0.8	4.2
Deferred revenue	2.2	4.4
Net operating loss carryforwards	10.6	15.3
Capital loss carryforwards		0.3
Foreign tax and other tax credit carryforwards	15.5	14.8
Foreign statutory reserves	15.0	4.9
Unrealized currency gain/loss	4.8
Warranty reserve	3.1	2.9
Other	0.6	1.3
Gross deferred tax assets	63.3	62.4
Less valuation allowance	(39.9)	(33.7)
Total deferred tax assets	23.4	28.7
Deferred tax liabilities:
Accounts receivable	0.1	1.0
Fixed assets	2.8	4.0
Foreign statutory reserves	5.8	12.5
Investments	0.3	2.5
Inventory	0.3	0.6
Intangibles	5.8	7.6
Accrued expenses	3.9	3.8
Other		3.0
Total deferred tax liabilities	19.0	35.0
Net deferred tax liability	$ 4.4	$ (6.3)