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Goodwill - Summary of Change in the Net Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2017 | Dec. 31, 2016
Goodwill [Line Items] |  |
Goodwill |  | $ 2,094,359
Accumulated impairment loss |  | (159,895)
Goodwill [Roll Forward] |  |
Balance, beginning of period | $ 1,934,464 |
Acquisitions | 3,099 |
Dispositions | (488) |
Reclassification to Long-term assets held for sale | (32,330) |
Currency translation adjustments | 123,541 |
Adjustments to prior acquisitions | 0 |
Balance, end of period | 2,028,286 |
Brazil |  |
Goodwill [Line Items] |  |
Goodwill |  | 501,055
Accumulated impairment loss |  | 0
Goodwill [Roll Forward] |  |
Balance, beginning of period | 501,055 |
Acquisitions | 0 |
Dispositions | 0 |
Reclassification to Long-term assets held for sale | 0 |
Currency translation adjustments | 16,286 |
Adjustments to prior acquisitions | 0 |
Balance, end of period | 517,341 |
Mexico |  |
Goodwill [Line Items] |  |
Goodwill |  | 480,985
Accumulated impairment loss |  | 0
Goodwill [Roll Forward] |  |
Balance, beginning of period | 480,985 |
Acquisitions | 0 |
Dispositions | 0 |
Reclassification to Long-term assets held for sale | 0 |
Currency translation adjustments | 75,101 |
Adjustments to prior acquisitions | 0 |
Balance, end of period | 556,086 |
Andean & Iberian |  |
Goodwill [Line Items] |  |
Goodwill |  | 297,519
Accumulated impairment loss |  | 0
Goodwill [Roll Forward] |  |
Balance, beginning of period | 297,519 |
Acquisitions | 0 |
Dispositions | 0 |
Reclassification to Long-term assets held for sale | 0 |
Currency translation adjustments | 19,748 |
Adjustments to prior acquisitions | 0 |
Balance, end of period | 317,267 |
Central America & U.S. Campuses |  |
Goodwill [Line Items] |  |
Goodwill |  | 154,759
Accumulated impairment loss |  | (96,754)
Goodwill [Roll Forward] |  |
Balance, beginning of period | 58,005 |
Acquisitions | 0 |
Dispositions | 0 |
Reclassification to Long-term assets held for sale | 0 |
Currency translation adjustments | 0 |
Adjustments to prior acquisitions | 0 |
Balance, end of period | 58,005 |
EMEAA |  |
Goodwill [Line Items] |  |
Goodwill |  | 200,254
Accumulated impairment loss |  | (63,141)
Goodwill [Roll Forward] |  |
Balance, beginning of period | 137,113 |
Acquisitions | 3,099 |
Dispositions | (488) |
Reclassification to Long-term assets held for sale | (32,330) |
Currency translation adjustments | 11,506 |
Adjustments to prior acquisitions | 0 |
Balance, end of period | 118,900 |
Online & Partnerships |  |
Goodwill [Line Items] |  |
Goodwill |  | 459,787
Accumulated impairment loss |  | $ 0
Goodwill [Roll Forward] |  |
Balance, beginning of period | 459,787 |
Acquisitions | 0 |
Dispositions | 0 |
Reclassification to Long-term assets held for sale | 0 |
Currency translation adjustments | 900 |
Adjustments to prior acquisitions | 0 |
Balance, end of period | $ 460,687 |

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