XML 16 R25.htm IDEA: XBRL DOCUMENT v2.4.0.6

Nature of Operations (Details)	9 Months Ended
	Sep. 30, 2012 Segment Campus
Nature of Operations (Textual)
Number of campuses	97
Number of reporting segments	1

X

- Details

Name:	stra_NatureOfOperationsTextualAbstract
Namespace Prefix:	stra_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of campuses.

+ References

No definition available.

+ Details

Name:	stra_NumberOfCampuses
Namespace Prefix:	stra_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

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.

+ References

No definition available.

+ Details

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