Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Details)

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Income Taxes (Details) (USD $)
 3 Months Ended 9 Months Ended
Sep. 28, 2013
Sep. 29, 2012
Sep. 28, 2013
M
Sep. 29, 2012
Dec. 31, 2012
Income Tax Disclosure [Abstract]          
Income tax provision (benefit) from continuing operations $ (2,200,000) $ 9,200,000 $ 31,600,000 $ 30,000,000  
Reassessment of tax reserves and valuation allowance adjustments (4,300,000)   9,000,000    
Reassessment of tax reserves   2,300,000      
Reassessment of taxes reserves, valuation allowance adjustments and release of valuation allowance       100,000  
Effective tax rate from continuing operations (4.00%) 29.00% 14.20% 15.50%  
Deferred tax asset valuation allowance 723,400,000   723,400,000    
Gross unrecognized tax benefits, including interest 10,600,000   10,600,000   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 5,300,000   5,300,000    
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 700,000   700,000   3,100,000
Amounts accrued for penalties for unrecognized tax benefits $ 0   $ 0   $ 0