XML 15 R39.htm IDEA: XBRL DOCUMENT v2.4.0.6

Nature Of Operations (Details)	12 Months Ended
	Dec. 31, 2011
Nature Of Operations [Abstract]
Number of campuses	92
Number of reporting segments	1

X

- Details

Name:	stra_NatureOfOperationsAbstract
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 reporting segments.

+ References

No definition available.

+ Details

Name:	stra_NumberOfReportingSegments
Namespace Prefix:	stra_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration