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Concentration Risk (Details) - Cardtronics Delaware - Seven Eleven
6 Months Ended 12 Months Ended
Jun. 30, 2016
Dec. 31, 2015
Dec. 31, 2014
Concentration Risk [Line Items]      
Contract extension period 6 months    
Unaudited Pro Forma Revenues | Customer Concentration Risk      
Concentration Risk [Line Items]      
Concentration risk percentage   18.00% 17.50%