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Goodwill and Other Intangible Assets - Schedule of Changes in Carrying Amount of Goodwill (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended |
--- | --- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2013
Goodwill [Line Items] |  |  |
Goodwill, beginning balance | $ 170,706 |  | $ 87,356
Goodwill impairment | (83,350) | (168,700) |
Goodwill ending balance | 87,356 | 170,706 | 87,356
CTU [Member] |  |  |
Goodwill [Line Items] |  |  |
Goodwill, beginning balance | 45,938 |  | 45,938
Goodwill impairment |  |  |
Goodwill ending balance | 45,938 |  | 45,938
AIU [Member] |  |  |
Goodwill [Line Items] |  |  |
Goodwill, beginning balance | 41,418 |  | 41,418
Goodwill impairment |  |  |
Goodwill ending balance | 41,418 |  | 41,418
Health Education [Member] |  |  |
Goodwill [Line Items] |  |  |
Goodwill, beginning balance | 41,293 |  |
Goodwill impairment | (41,293) |  |
Goodwill ending balance |  |  |
Culinary Arts [Member] |  |  |
Goodwill [Line Items] |  |  |
Goodwill, beginning balance |  |  |
Goodwill impairment |  |  |
Goodwill ending balance |  |  |
Design & Technology [Member] |  |  |
Goodwill [Line Items] |  |  |
Goodwill, beginning balance | 40,752 |  |
Goodwill impairment | (40,752) |  |
Goodwill ending balance |  |  |
Transitional Schools [Member] |  |  |
Goodwill [Line Items] |  |  |
Goodwill, beginning balance | 1,305 |  |
Goodwill impairment | (1,305) |  |
Goodwill ending balance |  |  |

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- Definition Amount after accumulated impairment loss of an asset representing 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 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + 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 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: 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=14024403&loc=d3e13854-109267 Reference 3: 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 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=14024403&loc=d3e13816-109267 + Details
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