Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Details Textual)

v2.4.0.6
Summary of Significant Accounting Policies (Details Textual) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Regions
Unit
Country
Y
Dec. 31, 2010
Unit
Dec. 31, 2009
Unit
Summary of Significant Accounting Policies (Textual) [Abstract]      
Majority-owned subsidiaries that the Company controls Between 20% and 50%    
Subsidiaries that the Company accounts for under the cost method Less than 20%    
Remaining maturity period for highly liquid investments Three months or less    
Approximate available remaining lease period for fee owned properties 20    
Multiplication Value to Cash flows for the determination of fair value of Reporting units 7.5 6.5 6.5
Number of reporting units in U.S. 16    
Number of international reporting units 8    
Amortization period of deferred charges and other assets, minimum 1    
Amortization period of deferred charges and other assets, maximum 10    
General liability claim per occurrence $ 250    
Annual cap per policy year 2,650    
Medical claim per occurrence 125    
Insurance Reserves 7,600 7,447  
Unredeemed gift cards and other advances 7,846 7,073 7,162
Advertising cost $ 18,052 $ 16,147 $ 15,104
Minimum Percentage for Tax position measure as largest amount of benefit 50.00%