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Geographic Information - Schedule of Segment and Geographic Information (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Segment Reporting Information [Line Items]        
Total Revenues $ 80,976 $ 79,813 $ 146,793 $ 143,668
Colombia [Member]        
Segment Reporting Information [Line Items]        
Total Revenues 15,525 28,300 31,953 46,878
United States [Member]        
Segment Reporting Information [Line Items]        
Total Revenues 60,342 47,774 106,650 87,892
Panama [Member]        
Segment Reporting Information [Line Items]        
Total Revenues 830 1,511 2,093 4,425
Other [Member]        
Segment Reporting Information [Line Items]        
Total Revenues $ 4,279 $ 2,228 $ 6,097 $ 4,473