Regulation (Details)	3 Months Ended	6 Months Ended	12 Months Ended
	Mar. 31, 2018 USD ($) state item	Jun. 30, 2014 item	Dec. 31, 2014 state item
Minimum
Regulation [Line Items]
Average of median annual earning percentage	8.00%
Average of median discretionary percentage	20.00%
Maximum
Regulation [Line Items]
Average of median annual earning percentage	12.00%
Average of median discretionary percentage	30.00%
Strayer University
Regulation [Line Items]
Number of debt-to-earnings measures	2
Failed programs	0
Number of ineligible years	3 years
Number of current associate degree programs in the Zone	2
Number of consecutive years program has to fail both metrics to become ineligible	2 years
Number of consecutive years program has to fail one metric to become ineligible	4 years
Number of metric that can't failed for consecutive years	1
Number of guidance documents	2
Number of years an adverse action must be disclosed	5 years
Number of sessions		4
Number of conducted compliance reviews			2
Number of reviews in which no further action was required			3
Number of on-site reviews conducted			4
Number of states in which compliance reviews were conducted | state			3
Strayer University | Minimum
Regulation [Line Items]
Number of states needed for state authorization reciprocity agreement | state	2
Strayer University | Maximum
Regulation [Line Items]
Amount due to department of education | $	$ 500