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Goodwill and Other Intangible Assets - Schedule of Asset Impairment Charges (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Segment Reporting Information [Line Items] |  |  |
Total Impairments of Goodwill | $ 0 | $ 23,465 | $ 0
Impairments of Deferred costs and Other intangible assets, net | 3,073 | 0 | 0
Impairments of long-lived assets | 28,992 | 0 | 0
Total | 40,597 | 23,465 | 0
Brazil |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Impairments of Goodwill | 0 | 0 | 0
Mexico |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Impairments of Goodwill | 0 | 0 | 0
Andean & Iberian |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Impairments of Goodwill | 0 | 0 | 0
Central America & U.S. Campuses |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Impairments of Goodwill | 0 | 0 | 0
EMEAA |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Impairments of Goodwill | 0 | 23,465 | 0
Online & Partnerships |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Impairments of Goodwill | 0 | 0 | 0
Tradenames |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Impairments of Tradenames | 8,532 | 0 | 0
Tradenames | Brazil |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Impairments of Tradenames | 0 | 0 | 0
Tradenames | Mexico |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Impairments of Tradenames | 0 | 0 | 0
Tradenames | Andean & Iberian |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Impairments of Tradenames | 0 | 0 | 0
Tradenames | Central America & U.S. Campuses |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Impairments of Tradenames | 5,443 | 0 | 0
Tradenames | EMEAA |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Impairments of Tradenames | 3,089 | 0 | 0
Tradenames | Online & Partnerships |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Impairments of Tradenames | $ 0 | $ 0 | $ 0

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- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=68055307&loc=d3e2420-110228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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- Definition Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13777-109266 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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- Definition Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16373-109275 + Details
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- Definition The charge against earnings resulting from the write down of long lived assets other than goodwill due to the difference between the carrying value and lower fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84176398&loc=d3e2921-110230 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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