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Intangible And Other Assets (Schedule Of Intangible And Other Assets) (Details) (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Oct. 01, 2011
years
Jan. 01, 2011
Component of Other Expense, Nonoperating [Line Items]  
Total intangibles and other assets, net$ 69,806$ 55,737
Total Intangibles And Other Assets, Net [Member]
  
Component of Other Expense, Nonoperating [Line Items]  
Total intangibles and other assets, net69,80655,737
Other Assets [Member]
  
Component of Other Expense, Nonoperating [Line Items]  
Total other assets, Carrying Amount11,6086,615
Total other assets, Accumulated Amortization3,4562,633
Tradenames [Member]
  
Component of Other Expense, Nonoperating [Line Items]  
Total intangibles-not subject to amortization, Carrying Amount18,95018,938
Key Money Deposits [Member]
  
Component of Other Expense, Nonoperating [Line Items]  
Total other assets, Carrying Amount32,72922,973
Total other assets, Accumulated Amortization9,6667,720
Other Deposits [Member]
  
Component of Other Expense, Nonoperating [Line Items]  
Total other assets, Carrying Amount12,14411,991
Deferred Compensation Plan Assets [Member]
  
Component of Other Expense, Nonoperating [Line Items]  
Total other assets, Carrying Amount2,8133,295
Long Term Restricted Cash [Member]
  
Component of Other Expense, Nonoperating [Line Items]  
Long term restricted cash, Carrying Amount1,7540
Total Other Assets [Member]
  
Component of Other Expense, Nonoperating [Line Items]  
Total other assets, Carrying Amount61,04844,874
Total other assets, Accumulated Amortization13,12210,353
Total Intangibles And Other Assets [Member]
  
Component of Other Expense, Nonoperating [Line Items]  
Total intangibles and other assets, Carrying Amount92,73175,384
Total intangibles and other assets, Accumulated Amortization22,92519,647
Trademarks [Member]
  
Component of Other Expense, Nonoperating [Line Items]  
Useful Lives (years)10 
Total intangibles-subject to amortization, Carrying Amount4,1222,666
Total intangibles-subject to amortization, Accumulated Amortization2,0301,795
Customer List [Member]
  
Component of Other Expense, Nonoperating [Line Items]  
Useful Lives (years)9 
Total intangibles-subject to amortization, Carrying Amount7,6427,937
Total intangibles-subject to amortization, Accumulated Amortization7,1966,963
Patents [Member]
  
Component of Other Expense, Nonoperating [Line Items]  
Useful Lives, Minimum (years)14 
Useful Lives, Maximum (years)20 
Total intangibles-subject to amortization, Carrying Amount773775
Total intangibles-subject to amortization, Accumulated Amortization383349
Other Intangibles [Member]
  
Component of Other Expense, Nonoperating [Line Items]  
Useful Lives, Minimum (years)7 
Useful Lives, Maximum (years)20 
Total intangibles-subject to amortization, Carrying Amount196194
Total intangibles-subject to amortization, Accumulated Amortization194187
Total Intangibles - Subject To Amortization [Member]
  
Component of Other Expense, Nonoperating [Line Items]  
Total intangibles-subject to amortization, Carrying Amount12,73311,572
Total intangibles-subject to amortization, Accumulated Amortization$ 9,803$ 9,294