Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Details)

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Income Taxes (Details) (USD $)
 3 Months Ended 6 Months Ended
Jun. 29, 2013
Jun. 30, 2012
Jun. 29, 2013
M
Jun. 30, 2012
Dec. 31, 2012
Income Tax Disclosure [Abstract]          
Income tax provision from continuing operations $ 11,900,000 $ 9,900,000 $ 33,800,000 $ 20,800,000  
Reassessment of tax reserves and valuation allowance adjustments 2,200,000   13,300,000    
Release of valuation allowances and valuation allowance adjustments   3,200,000   2,200,000  
Effective tax rate from continuing operations 13.00% 9.50% 20.10% 12.90%  
Gross unrecognized tax benefits, including interest 24,900,000   24,900,000   27,800,000
Possible decrease of total amount of gross unrecognized tax benefits due to settlements with taxing authorities or lapses in the statute of limitations 16,300,000   16,300,000    
Number of months from reporting date for possible decrease of total amount of gross unrecognized tax benefits     12    
Interest accrued related to unrecognized tax benefits 3,200,000   3,200,000   3,100,000
Amounts accrued for penalties for unrecognized tax benefits $ 200,000   $ 200,000   $ 0