Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 29, 2015	Mar. 30, 2014	Dec. 28, 2014
Income Taxes [Line Items]
Effective tax rate	(279.70%)	111.80%
Net deferred tax assets	$ 11.6		$ 12.8
Current income tax receivable	0.7		2.4
Estimated tax payments	1.1
Current income tax expense	2.8
Current deferred tax liability	2.3
Unrecognized tax benefit, if recognized, would affect the effective tax rate	17.1		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