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Taxes (Details 5) (USD $)
 12 Months Ended
Dec. 29, 2012
Dec. 31, 2011
Jan. 01, 2011
Taxes      
Tax at statutory rate (as a percent) 35.00% 35.00% 35.00%
State, net of federal tax benefit (as a percent) 1.00% 1.20% 0.90%
Foreign rate differential (as a percent) (10.00%) (12.00%) (11.10%)
U.S. tax on foreign income (as a percent) 3.10% 6.70% 9.80%
Income tax contingencies (as a percent) (1.70%) 0.70% (3.70%)
Other (as a percent) 0.60% 0.30% 0.20%
Provision for income taxes (as a percent) 28.00% 31.90% 31.10%
Undistributed earnings of certain foreign subsidiaries $ 557,000,000    
Unrecognized tax benefits that would favorably impact the effective tax rate in future periods if recognized 10,700,000 12,700,000 8,100,000
Reduction in income tax benefit from settlement of issues under protest 6,000,000    
Unrecognized tax benefits excluding interest and penalties 7,900,000    
Accrued income tax-related interest 2,200,000 2,500,000  
Penalties accrued 300,000    
Accrued interest expense (1,000,000) 1,200,000 800,000
Reconciliation of the total amounts of unrecognized tax benefits      
Balance at beginning of year 17,974,000 10,945,000 35,426,000
Gross increases tax positions 1,245,000 5,963,000 2,680,000
Gross decreases tax positions (2,580,000)   (27,799,000)
Gross increases - current year 2,486,000 1,192,000 842,000
Settlements (3,582,000) (119,000) (204,000)
Lapse in statute of limitations 0 0 0
Increase due to currency 6,000 (7,000)  
Balance at end of year $ 15,549,000 $ 17,974,000 $ 10,945,000