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Fair Value Measurements (Fair Value Hierarchy Of Assets And Liabilities Measured At Fair Value On A Nonrecurring Basis) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Jan. 01, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total Gains/(Losses)   $ (7,429)
Level 1 [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets and liabilities measured at fair value on a nonrecurring basis   0
Level 2 [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets and liabilities measured at fair value on a nonrecurring basis   0
Level 3 [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets and liabilities measured at fair value on a nonrecurring basis   9,301
Specific Company-Owned Stores-Net [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets and liabilities measured at fair value on a nonrecurring basis 51 0
Total Gains/(Losses) (957) (1,848)
Specific Company-Owned Stores-Net [Member] | Level 1 [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets and liabilities measured at fair value on a nonrecurring basis 0 0
Specific Company-Owned Stores-Net [Member] | Level 2 [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets and liabilities measured at fair value on a nonrecurring basis 0 0
Specific Company-Owned Stores-Net [Member] | Level 3 [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets and liabilities measured at fair value on a nonrecurring basis 51 0
Specific Company-Owned Office-Net [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets and liabilities measured at fair value on a nonrecurring basis   8,863
Total Gains/(Losses)   (3,738)
Specific Company-Owned Office-Net [Member] | Level 1 [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets and liabilities measured at fair value on a nonrecurring basis   0
Specific Company-Owned Office-Net [Member] | Level 2 [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets and liabilities measured at fair value on a nonrecurring basis   0
Specific Company-Owned Office-Net [Member] | Level 3 [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets and liabilities measured at fair value on a nonrecurring basis   8,863
Specific Trade Names [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets and liabilities measured at fair value on a nonrecurring basis   438
Total Gains/(Losses)   (1,843)
Specific Trade Names [Member] | Level 1 [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets and liabilities measured at fair value on a nonrecurring basis   0
Specific Trade Names [Member] | Level 2 [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets and liabilities measured at fair value on a nonrecurring basis   0
Specific Trade Names [Member] | Level 3 [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets and liabilities measured at fair value on a nonrecurring basis   $ 438