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Intangible And Other Assets (Schedule Of Intangible And Other Assets) (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2011
Jan. 01, 2011
Finite And Indefinite Lived Intangible And Other Assets [Line Items]    
Useful Lives, Minimum (years) 7  
Useful Lives, Maximum (years) 20  
Total intangibles-subject to amortization, Carrying Amount $ 12,723 $ 11,572
Total intangibles-subject to amortization, Accumulated Amortization 9,967 9,294
Total other assets, Carrying Amount 66,243 44,874
Total other assets, Accumulated Amortization 14,039 10,353
Total intangible and other assets, Carrying Amount 97,902 75,384
Total intangible and other assets, Accumulated Amortization 24,006 19,647
Total intangible and other assets, net 73,896 55,737
Trademarks [Member]
    
Finite And Indefinite Lived Intangible And Other Assets [Line Items]    
Useful Lives (years) 10  
Total intangibles-subject to amortization, Carrying Amount 4,121 2,666
Total intangibles-subject to amortization, Accumulated Amortization 2,109 1,795
Customer List [Member]
    
Finite And Indefinite Lived Intangible And Other Assets [Line Items]    
Useful Lives (years) 9  
Total intangibles-subject to amortization, Carrying Amount 7,636 7,937
Total intangibles-subject to amortization, Accumulated Amortization 7,274 6,963
Patents [Member]
    
Finite And Indefinite Lived Intangible And Other Assets [Line Items]    
Useful Lives, Minimum (years) 14  
Useful Lives, Maximum (years) 20  
Total intangibles-subject to amortization, Carrying Amount 773 775
Total intangibles-subject to amortization, Accumulated Amortization 394 349
Other Intangibles [Member]
    
Finite And Indefinite Lived Intangible And Other Assets [Line Items]    
Useful Lives, Minimum (years) 7  
Useful Lives, Maximum (years) 20  
Total intangibles-subject to amortization, Carrying Amount 193 194
Total intangibles-subject to amortization, Accumulated Amortization 190 187
Trade Names [Member]
    
Finite And Indefinite Lived Intangible And Other Assets [Line Items]    
Total intangibles-not subject to amortization, Carrying Amount 18,936 18,938
Key Money Deposits [Member]
    
Finite And Indefinite Lived Intangible And Other Assets [Line Items]    
Total other assets, Carrying Amount 31,804 22,973
Total other assets, Accumulated Amortization 10,291 7,720
Other Deposits [Member]
    
Finite And Indefinite Lived Intangible And Other Assets [Line Items]    
Total other assets, Carrying Amount 13,685 11,991
Deferred Compensation Plan Assets [Member]
    
Finite And Indefinite Lived Intangible And Other Assets [Line Items]    
Total other assets, Carrying Amount 2,897 3,295
Deferred Tax Asset [Member]
    
Finite And Indefinite Lived Intangible And Other Assets [Line Items]    
Total other assets, Carrying Amount 4,875 926
Restricted Cash [Member]
    
Finite And Indefinite Lived Intangible And Other Assets [Line Items]    
Total other assets, Carrying Amount 2,114 0
Other Assets [Member]
    
Finite And Indefinite Lived Intangible And Other Assets [Line Items]    
Total other assets, Carrying Amount 10,868 5,689
Total other assets, Accumulated Amortization $ 3,748 $ 2,633