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Business and Geographic Segment Information - Additional Information (Details) $ in Thousands | 5 Months Ended | 6 Months Ended | 7 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Dec. 31, 2017 USD ($) segment state licensed_institution | Jun. 30, 2017 segment | Jul. 31, 2017 segment | Dec. 31, 2017 USD ($) segment campus state licensed_institution educational_institution | Dec. 31, 2016 USD ($)
Segment Reporting Information [Line Items] |  |  |  |  |
Number of operating segments (segment) | segment | 6 |  | 3 | 6 |
Number of additional operating segments created (segment) | segment |  | 3 |  |  |
Assets | $ | $ 7,391,285 |  |  | $ 7,391,285 | $ 7,062,534
Brazil |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Number of postsecondary educational institutions (educational institution) | educational_institution |  |  |  | 13 |
Number of states in which entity operates (state) | state | 8 |  |  | 8 |
Mexico |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Number of postsecondary educational institutions (educational institution) | educational_institution |  |  |  | 2 |
Number of campuses of postsecondary educational institutions (campus) | campus |  |  |  | 40 |
Saudi Arabia |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Number of licensed institutions managed through joint venture arrangements (licensed institution) | licensed_institution | 8 |  |  | 8 |
China |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Number of licensed institutions managed through joint venture arrangements (licensed institution) | licensed_institution | 1 |  |  | 1 |
Discontinued Operations, Held-for-sale |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Assets | $ | $ 1,549,340 |  |  | $ 1,549,340 | $ 1,431,498

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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(11)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(12)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References No definition available. + Details
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