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Merger and Other Acquisitions - Other Acquisitions (Details)
9 Months Ended
Jan. 06, 2016
USD ($)
store
Sep. 30, 2016
USD ($)
store
Latin America Acquisition    
Business Acquisition [Line Items]    
Post closing adjustments $ 229,000  
Purchase price 30,123,000 $ 29,894,000
Cash paid   27,357
Business Combination, Consideration Transferred, Liabilities Incurred   2,537
Notes payable $ 6,630,000 $ 6,630,000
U.S. Acquisition    
Business Acquisition [Line Items]    
Number of stores acquired | store   1
Purchase price   $ 824,000
Cash paid   575,000
Notes payable   $ 0
Mexico Acquisition | Latin America Acquisition    
Business Acquisition [Line Items]    
Number of stores acquired | store 166  
El Salvador Acquisition | Latin America Acquisition    
Business Acquisition [Line Items]    
Number of stores acquired | store 13