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Segment and Geographic Information (Assets by Segment) (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Segment Reporting Information [Line Items] |  |
Total assets | $ 1,803,743 | $ 1,505,053
Reportable Geographical Segments [Member] |  |
Segment Reporting Information [Line Items] |  |
Total assets | 1,772,577 | 1,575,708
Reportable Geographical Segments [Member] | Brazil [Member] |  |
Segment Reporting Information [Line Items] |  |
Total assets | 786,897 | 726,250
Reportable Geographical Segments [Member] | Caribbean Division [Member] |  |
Segment Reporting Information [Line Items] |  |
Total assets | 416,541 | 355,568
Reportable Geographical Segments [Member] | NOLAD [Member] |  |
Segment Reporting Information [Line Items] |  |
Total assets | 271,558 | 247,546
Reportable Geographical Segments [Member] | SLAD [Member] |  |
Segment Reporting Information [Line Items] |  |
Total assets | 297,581 | 246,344
Corporate and Others [Member] |  |
Segment Reporting Information [Line Items] |  |
Total assets | 172,400 | 82,822
Purchase Price Allocation [Member] |  |
Segment Reporting Information [Line Items] |  |
Total assets | $ (141,234) | $ (153,477)

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