Basis of Presentation - Additional Information (Detail)	3 Months Ended	6 Months Ended
Jun. 30, 2018 Cmp	Jun. 30, 2018 Segment
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Number of reporting segments \| Segment		3
All Other Campuses [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Number of campuses completed teach out activities \| Cmp	3

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

No definition available.

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration