Regulation (Details)	4 Months Ended	9 Months Ended	12 Months Ended
	May 31, 2014 Rulemaking_Session	Sep. 30, 2019 hearing Subcommittee measure Program Jurisdiction Metric	Dec. 31, 2016 USD ($) State	Dec. 31, 2014 Review State
Regulation [Line Items]
Number of debt-to-earnings measures | measure		2
Number of ineligible years		3 years
Number of metrics that can't be failed for consecutive years | Metric		1
Number of consecutive years program has to fail both metrics to become ineligible		2 years
Number of consecutive years		3 years
Number of consecutive years program has to fail one metric to become ineligible		4 years
Number of current associate degree programs in the Zone | Program		3
Number of years needed with combination of zone and failing designations		4 years
Number of subcommittees | Subcommittee		3
Number of department public hearings convened | hearing		3
Number of sessions | Rulemaking_Session	4
Minimum
Regulation [Line Items]
Licensed jurisdictions | Jurisdiction		1
Number of states needed for state authorization reciprocity agreement | State			2
Strayer University
Regulation [Line Items]
Number of years an adverse action must be disclosed		5 years
Number of states in which compliance reviews were conducted | State				3
Number of conducted compliance reviews | Review				2
Number of reviews in which no further action was required | Review				3
Strayer University | Maximum
Regulation [Line Items]
Amount due to department of education | $			$ 500
Capella University | Strayer University
Regulation [Line Items]
Number of current associate degree programs in the Zone | Program		1
Strayer University
Regulation [Line Items]
Number of current associate degree programs in the Zone | Program		2
Number of on-site reviews conducted | Review				4
Passes
Regulation [Line Items]
Average of median discretionary percentage		20.00%
Passes | Maximum
Regulation [Line Items]
Average of median annual earning percentage		8.00%
Warning | Minimum
Regulation [Line Items]
Average of median annual earning percentage		8.00%
Average of median discretionary percentage		20.00%
Warning | Maximum
Regulation [Line Items]
Average of median annual earning percentage		12.00%
Average of median discretionary percentage		30.00%
Fails | Minimum
Regulation [Line Items]
Average of median annual earning percentage		12.00%
Average of median discretionary percentage		30.00%