Income Taxes (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Domestic and foreign components of income before taxes:
Domestic	$ (42.4)	$ (11.6)	$ (25.3)
Foreign	167.0	149.9	170.8
Total	124.6	138.3	145.5
Current income tax (benefit) expense:
Federal	0.2	1.4	(0.6)
State	0.2	0.9	0.2
Foreign	35.0	69.5	56.7
Total current income tax expense	35.4	71.8	56.3
Deferred income tax (benefit):
Federal	(1.8)	1.2	(3.8)
State	(0.6)		(0.9)
Foreign	9.8	(12.9)	(0.1)
Total deferred income tax (benefit)	7.4	(11.7)	(4.8)
Income tax provision	42.8	60.1	51.5
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)	(10.20%)	(7.20%)	(8.00%)
Permanent differences (as a percent)	12.00%	18.70%	12.80%
Tax contingencies (as a percent)	(1.10%)	3.00%	6.10%
Change in tax rates (as a percent)	0.10%	(0.70%)	0.20%
Withholding taxes (as a percent)	0.10%	0.30%
State income taxes, net of federal benefits (as a percent)	0.10%	0.30%	(0.30%)
Purchase accounting (as a percent)	0.80%	0.90%	(3.00%)
Tax Credits (as a percent)	(8.60%)	(9.50%)	(5.10%)
Other (as a percent)	0.60%	0.10%	(1.50%)
Change in valuation allowance for unbenefitted losses (as a percent)	5.50%	2.60%	(0.80%)
Effective tax rate before valuation allowance (as a percent)	34.30%	43.50%	35.40%
Deferred tax assets:
Accounts receivable	2.7	1.3
Accrued expenses	3.1	0.8
Compensation	10.7	8.6
Investments	0.5	0.8
Deferred revenue	4.1	2.2
Net operating loss carryforwards	11.4	10.6
Capital loss carryforwards	0.8
Foreign tax and other tax credit carryforwards	18.8	15.5
Foreign statutory reserves		15.0
Unrealized currency gain/loss	4.5	4.8
Warranty reserve	2.0	3.1
Other	3.6	0.6
Gross deferred tax assets	62.2	63.3
Less valuation allowance	(42.4)	(39.9)
Total deferred tax assets	19.8	23.4
Deferred tax liabilities:
Accounts receivable	0.4	0.1
Fixed assets	2.1	2.8
Foreign statutory reserves		5.8
Investments	0.2	0.3
Inventory	0.9	0.3
Intangibles	7.4	5.8
Accrued expenses	15.5	3.9
Unrealized currency gain/loss	4.2
Total deferred tax liabilities	30.7	19.0
Net deferred tax liability	(10.9)	4.4
Increase in valuation allowance due to unbenefited losses and credits in the U.S.	2.5
Decrease in valuation allowance due to deferred tax liabilities recorded on acquisition	$ 3.3