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Discontinued Operations (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended		1 Months Ended	3 Months Ended		1 Months Ended	0 Months Ended	3 Months Ended
Discontinued Operations (Narrative) (Details) (USD $)	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Feb. 29, 2012 Sale of Kaplan Learning Technologies [Member] Education [Member]	Jun. 30, 2012 Sale of Kaplan EduNeering [Member] Education [Member]	Mar. 31, 2012 Sales of Kaplan EduNeering and Kaplan Learning Technologies [Member] Education [Member]	Aug. 31, 2012 Sale of Kidum [Member] Education [Member]	Jul. 31, 2012 Disposition of Avenue 100 Media Solutions Inc. [Member] Other Businesses [Member]	Sep. 30, 2012 Disposition of Avenue 100 Media Solutions Inc. [Member] Other Businesses [Member]
Pre-tax gain (loss) on sale and/or disposition	$ 0	$ 29,541,000	$ (70,000)	$ 26,459,000				$ 3,600,000	$ (5,700,000)
After-tax gain (loss) on sale and/or disposition					(1,900,000)	18,500,000		10,200,000
Income tax benefits in connection with sales and/or dispositions of businesses							$ 23,200,000			$ 44,500,000

Amount of gain (loss), before tax expense or benefit and not previously recognized, resulting from the sale of a business component.

Amount of gain (loss), after tax expense or benefit and not previously recognized, resulting from the sale of a business component.