Contingencies (Details) $ in Millions					12 Months Ended
	Mar. 11, 2015 claim	Feb. 13, 2013 allegations	Aug. 17, 2011 claim Complaint	Jul. 22, 2011 USD ($)	Dec. 31, 2016 USD ($) claim program_review	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($) Case
Loss Contingencies [Line Items]
Number of existing legal claims or proceedings that are likely to have a material effect on the Company's business					0
Portion of regulations under 90/10 rule					an institution would lose its eligibility to participate in Title IV programs for a period of at least two fiscal years if the institution derives more than 90% of its receipts from Title IV programs, as calculated on a cash basis in accordance with the Higher Education Act and applicable ED regulations, in each of two consecutive fiscal years. An institution with Title IV receipts exceeding 90% for a single fiscal year would be placed on provisional certification and may be subject to other enforcement measures.
KHE's Broomall, PA location [Member]
Loss Contingencies [Line Items]
Amount payable under agreement | $				$ 1.6
Higher Education [Member]
Loss Contingencies [Line Items]
Education division revenue derived from financial aid received by students under Title IV programs | $					$ 437.0	$ 628.0	$ 806.0
Kaplan University [Member] | Maximum [Member]
Loss Contingencies [Line Items]
Percentage of receipts derived from Title IV					77.00%	79.00%
Education [Member] | Urquilla-Diaz And Jajdelski Case [Member]
Loss Contingencies [Line Items]
Number of unsealed cases filed by former employees under the U.S. Federal False Claims Act | Case							2
Education [Member] | Diaz Case [Member]
Loss Contingencies [Line Items]
The number of separate complaints included in the Diaz case that received rulings | Complaint			3
Remaining employment claim in the Diaz complaint			1
Education [Member] | Diaz Claims [Member]
Loss Contingencies [Line Items]
Number of claims affirmed for dismissal by US Court of Appeals	3
Number of claims appealed	4
Education [Member] | Jajdelski case [Member]
Loss Contingencies [Line Items]
Number of allegations not dismissed | allegations		1
Higher Education [Member]
Loss Contingencies [Line Items]
Percentage of receipts from Title IV programs					90.00%
Higher Education [Member] | Sale Of KHE Campuses Business [Member] | Education [Member]
Loss Contingencies [Line Items]
Number of pending ED program reviews | program_review					4