Concentration - Summary of Segment Revenue Derived from Students by Primary Funding Source (Details) - Revenue - Customer Concentration Risk	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
APUS | DoD tuition assistance programs
Concentration Risk [Line Items]
Concentration risk percentage	46.00%	48.00%	47.00%
APUS | VA education benefits
Concentration Risk [Line Items]
Concentration risk percentage	24.00%	22.00%	21.00%
APUS | Title IV programs
Concentration Risk [Line Items]
Concentration risk percentage	17.00%	17.00%	18.00%
APUS | Cash and other sources
Concentration Risk [Line Items]
Concentration risk percentage	13.00%	13.00%	13.00%
RU Segment | VA education benefits
Concentration Risk [Line Items]
Concentration risk percentage	2.00%	2.00%	2.00%
RU Segment | Title IV programs
Concentration Risk [Line Items]
Concentration risk percentage	76.00%	75.00%	74.00%
RU Segment | Cash and other sources
Concentration Risk [Line Items]
Concentration risk percentage	22.00%	23.00%	24.00%
HCN Segment | VA education benefits
Concentration Risk [Line Items]
Concentration risk percentage	1.00%	2.00%	2.00%
HCN Segment | Title IV programs
Concentration Risk [Line Items]
Concentration risk percentage	84.00%	82.00%	80.00%
HCN Segment | Cash and other sources
Concentration Risk [Line Items]
Concentration risk percentage	15.00%	16.00%	18.00%