Business Segments (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended							6 Months Ended	3 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended
	Dec. 31, 2011	Jan. 02, 2011	Jan. 03, 2010	Dec. 31, 2011 Education [Member]	Dec. 31, 2009 Education [Member]	Dec. 31, 2011 Kaplan Higher Education [Member]	Dec. 31, 2010 Kaplan Higher Education [Member]	Jun. 30, 2010 K12 [Member]	Dec. 31, 2010 Test Preparation [Member]	Dec. 31, 2011 Test Preparation [Member]	Jun. 30, 2009 Score [Member]	Dec. 31, 2009 Kaplan's Professional Domestic Training Business [Member]
Severance and restructuring costs				$ 29.2	$ 33.2	$ 13.2	$ 9.3	$ 7.8	$ 10.4	$ 12.5	$ 24.9	$ 8.3
Number Of Television Broadcast Stations	6
Foreign Revenues	628	540	505
Foreign long-lived assets	$ 74	$ 57