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Restructuring Charges - Restructuring Charges by Segment (Detail) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2016
Restructuring And Related Cost [Line Items]
Severance and related expenses	[1]	$ 1,898	$ 507
University Group [Member]
Restructuring And Related Cost [Line Items]
Severance and related expenses		1,865	84
Corporate and Other [Member]
Restructuring And Related Cost [Line Items]
Severance and related expenses		33	388
Subtotal [Member]
Restructuring And Related Cost [Line Items]
Severance and related expenses		1,898	472
All Other Campuses [Member]
Restructuring And Related Cost [Line Items]
Severance and related expenses			35
CTU [Member] | University Group [Member]
Restructuring And Related Cost [Line Items]
Severance and related expenses		782	18
AIU [Member] | University Group [Member]
Restructuring And Related Cost [Line Items]
Severance and related expenses		$ 1,083	$ 66
[1] Includes charges related to COBRA and outplacement services which are assumed to be completed by the third month following an employee’s departure.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 1
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-Name Accounting Standards Codification
-Topic 420
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
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-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

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-Publisher FASB
-Name Accounting Standards Codification
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