Contingencies (Details) (USD $)	1 Months Ended	3 Months Ended	6 Months Ended		3 Months Ended			1 Months Ended					6 Months Ended	3 Months Ended
	Jan. 31, 2014	Dec. 31, 2013	Dec. 31, 2013 Qui Tam Matters [Member] Plantiffs	Dec. 31, 2013 Qui Tam Matters [Member] Pending Litigation [Member]	Dec. 31, 2013 State of Colorado Attorney General [Member]	Dec. 31, 2013 State of Colorado Attorney General [Member] Eligible Students [Member]	Dec. 31, 2013 State of Colorado Attorney General [Member] Colorado Department of Law [Member]	Dec. 31, 2010 Attorney General of the Commonwealth of Kentucky [Member] Threatened Litigation [Member] Subpoenas Education_Systems	Oct. 31, 2010 Florida Attorney General [Member] Threatened Litigation [Member] Education_Systems	Dec. 31, 2011 City Attorney of the City of San Francisco, California [Member] Threatened Litigation [Member]	Dec. 31, 2013 AU Seattle APA Program Accreditation Lawsuit [Member] Threatened Litigation [Member] Plantiffs	Aug. 31, 2013 AU Seattle APA Program Accreditation Lawsuit [Member] Threatened Litigation [Member] Plantiffs	Dec. 31, 2013 U.S. Department of Veterans Affairs [Member] Threatened Litigation [Member] Education_Systems	Dec. 31, 2013 General and Administrative Expense [Member] State of Colorado Attorney General [Member]
Loss Contingencies [Line Items]
Number of plaintiffs			5								9	20
Loss Contingency, Damages Sought, Value				$ 11,000,000,000
Number of states included in investigation of potential issues	13
Litigation Settlement, Amount					3,400,000	2,900,000	500,000							3,400,000
Litigation Settlement Amount, Suspended Civil Penalties							$ 1,000,000
Litigation Settlement Amount, Suspended Civil Penalty, Suspension Period		3 years
Loss Contingency, Number of Locations Impacted								3	9	7			4
Loss Contingency, Number of Schools Impacted by Subpoena								6