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Summary Of Significant Accounting Policies (Details) - USD ($)
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Summary Of Significant Accounting Policies [Line Items]      
Value added tax and other tax receivable $ 24,088,000 $ 32,115,000  
Receivable with an independent logistic operator 0 11,795,000  
Impairment of long-lived assets 7,804,000 45,186,000  
Tangible asset impairment charges 12,343,000 50,886,000 $ 2,958,000
Impairment of goodwill 679,000 2,029,000 0
Accounts payable for outsourcing 2,142,000 1,850,000  
Company-Operated Franchise [Member]      
Summary Of Significant Accounting Policies [Line Items]      
Advertising expense 122,920,000 146,363,000 160,184,000
Franchisee [Member]      
Summary Of Significant Accounting Policies [Line Items]      
Advertising expense $ 35,131,000 $ 44,828,000 $ 49,820,000
Internal Used Software [Member]      
Summary Of Significant Accounting Policies [Line Items]      
Finite-lived intangible asset, useful life 3 years    
Minimum [Member] | Equipment [Member]      
Summary Of Significant Accounting Policies [Line Items]      
Property and equipment, useful life 3 years    
Maximum [Member] | Building [Member]      
Summary Of Significant Accounting Policies [Line Items]      
Property and equipment, useful life 40 years    
Maximum [Member] | Equipment [Member]      
Summary Of Significant Accounting Policies [Line Items]      
Property and equipment, useful life 12 years