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Significant Accounting Policies (Narrative) (Details) (USD $)
 12 Months Ended
Dec. 31, 2011
Jan. 01, 2011
Jan. 02, 2010
Property, Plant and Equipment [Line Items]      
Percentage of total watch assembly and jewelry production majority owned by assembly factories 60.00%    
Restricted Cash and Cash Equivalents, Noncurrent $ 2,100,000    
Restricted Cash 5,908,000 0  
Liquidation of investments 8,100,000    
Allowance for Doubtful Accounts Receivable 18,200,000 18,000,000  
Impairment losses 957,000 7,429,000 5,232,000
Goodwill and other indefinite-lived intangible assets estimated useful life, Minimum 7    
Goodwill and other indefinite-lived intangible assets estimated useful life, Maximum 20    
Warranty liability 11,000,000 8,500,000 6,400,000
Net foreign currency transaction gains (20,744,000) 5,227,000 5,779,000
Advertising costs 156,500,000 123,800,000 85,600,000
Weighted average shares issuable under stock-based awards were not included in the diluted EPS calculation 40,000   812,000
Building [Member]
      
Property, Plant and Equipment [Line Items]      
Estimated useful lives of the assets thirty    
Impairment losses   3,700,000  
Furniture And Fixtures [Member]
      
Property, Plant and Equipment [Line Items]      
Estimated useful lives of the assets five    
Selling And Distribution Expense [Member]
      
Property, Plant and Equipment [Line Items]      
Impairment losses 1,000,000 1,800,000 2,500,000
Trade Names [Member]
      
Property, Plant and Equipment [Line Items]      
Pre-tax impairment charges   1,800,000 2,700,000
Minimum [Member] | Computer Equipment And Software [Member]
      
Property, Plant and Equipment [Line Items]      
Estimated useful lives of the assets three    
Maximum [Member] | Computer Equipment And Software [Member]
      
Property, Plant and Equipment [Line Items]      
Estimated useful lives of the assets seven    
Allowance for Sales Returns [Member]
      
Property, Plant and Equipment [Line Items]      
Allowance of account receivable net 61,600,000 62,700,000  
Scenario, Forecast [Member]
      
Property, Plant and Equipment [Line Items]      
Foreign contract derivative net of tax, loss $ 4,800,000