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Business Combinations, Goodwill and Intangible Assets (Composition of Goodwill and Intangible Assets) (Details) - USD ($)
$ in Thousands
Jun. 30, 2015
Dec. 31, 2014
Dec. 31, 2013
Indefinite-lived Intangible Assets [Line Items]      
Goodwill $ 101,840 $ 68,829 $ 55,101
Total intangible assets, net 34,265 23,171  
Software Development Company In Argentina [Member]      
Indefinite-lived Intangible Assets [Line Items]      
Goodwill 101,840 68,829  
Total intangible assets 40,655 28,510  
Accumulated amortization (6,390) (5,339)  
Total intangible assets, net 34,265 23,171  
Software Development Company In Argentina [Member] | Licenses and Others [Member]      
Indefinite-lived Intangible Assets [Line Items]      
Finite-Lived Intangible Assets, Gross 10,033 5,111  
Software Development Company In Argentina [Member] | Non-Compete / Solicitation Agreement [Member]      
Indefinite-lived Intangible Assets [Line Items]      
Finite-Lived Intangible Assets, Gross 1,679 1,829  
Software Development Company In Argentina [Member] | Customer Lists [Member]      
Indefinite-lived Intangible Assets [Line Items]      
Finite-Lived Intangible Assets, Gross 14,631 11,294  
Trademarks [Member] | Software Development Company In Argentina [Member]      
Indefinite-lived Intangible Assets [Line Items]      
Trademarks $ 14,312 $ 10,276