Estimated tax payments on account net of refunds received.

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Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.

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Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards, net of deferred tax liability attributable to taxable temporary differences.

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Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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Amount of deferred tax liability attributable to taxable temporary differences, net of deferred tax asset attributable to deductible temporary differences and carryforwards net of valuation allowances expected to be realized or consumed within one year or operating cycle, if longer.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Carrying amount due within one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes.

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Tax year being audited in the income tax examination, in CCYY format.

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The date on which the special tax status will terminate.

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Tax year that remains open to examination under enacted tax laws, in CCYY format.

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Amount of (increase) decrease reasonably possible in the estimated lower bound of the unrecognized tax benefit for a tax position taken or expected to be taken.

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Amount of (increase) decrease reasonably possible in the estimated upper bound of the unrecognized tax benefit for a tax position taken or expected to be taken.

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Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 29, 2015	Mar. 30, 2014	Dec. 28, 2014
Income Taxes [Line Items]
Effective tax rate	(10.50%)	111.80%
Net deferred tax assets	$ 10.7us-gaap_DeferredTaxAssetsLiabilitiesNet		$ 12.8us-gaap_DeferredTaxAssetsLiabilitiesNet
Current income tax receivable	3.4us-gaap_IncomeTaxesReceivable		2.4us-gaap_IncomeTaxesReceivable
Estimated tax payments	1.1
Current income tax expense	0.1us-gaap_CurrentIncomeTaxExpenseBenefit
Current deferred tax liability	2.6us-gaap_DeferredTaxLiabilitiesCurrent
Unrecognized tax benefit, if recognized, would affect the effective tax rate	16.3		16.4
Interest and penalties benefit	0.2	0.2
Accrued interest and penalties related to unrecognized tax benefits	4.5		4.3
Expected change of gross unrecognized tax benefits, minimum	4.2
Expected change of gross unrecognized tax benefits, maximum	12.0
Minimum
Income Taxes [Line Items]
Income tax holiday, termination date	2015
Maximum
Income Taxes [Line Items]
Income tax holiday, termination date	2017
Domestic Tax Authority
Income Taxes [Line Items]
Valuation allowance			108.3
Deferred tax assets			96.1
Germany \| Minimum
Income Taxes [Line Items]
Income tax examination, year under examination	2006
Open tax years currently under audit	2006
Germany \| Maximum
Income Taxes [Line Items]
Income tax examination, year under examination	2009
Open tax years currently under audit	2014
Finland \| Minimum
Income Taxes [Line Items]
Income tax examination, year under examination	2005
Finland \| Maximum
Income Taxes [Line Items]
Income tax examination, year under examination	2009
INDIA \| Minimum
Income Taxes [Line Items]
Income tax examination, year under examination	2012
INDIA \| Maximum
Income Taxes [Line Items]
Income tax examination, year under examination	2013
CANADA \| Minimum
Income Taxes [Line Items]
Income tax examination, year under examination	2011
CANADA \| Maximum
Income Taxes [Line Items]
Income tax examination, year under examination	2014
UNITED STATES \| Minimum
Income Taxes [Line Items]
Open tax years currently under audit	2011
UNITED STATES \| Maximum
Income Taxes [Line Items]
Open tax years currently under audit	2014
CHINA \| Minimum
Income Taxes [Line Items]
Open tax years currently under audit	2011
CHINA \| Maximum
Income Taxes [Line Items]
Open tax years currently under audit	2014
HONG KONG \| Minimum
Income Taxes [Line Items]
Open tax years currently under audit	2008
HONG KONG \| Maximum
Income Taxes [Line Items]
Open tax years currently under audit	2014
Other Liabilities
Income Taxes [Line Items]
Accrued interest and penalties related to unrecognized tax benefits	$ 16.1		$ 16.1