Revenue - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Disaggregation of Revenue [Line Items]
Total Revenue	$ 164,551	$ 154,432
Instructional services, net of grants and scholarships
Disaggregation of Revenue [Line Items]
Total Revenue	150,344	142,276
Graduation fees
Disaggregation of Revenue [Line Items]
Total Revenue	1,087	660
Textbook and other course materials
Disaggregation of Revenue [Line Items]
Total Revenue	11,822	10,464
Other fees
Disaggregation of Revenue [Line Items]
Total Revenue	1,298	1,032
Operating Segments
Disaggregation of Revenue [Line Items]
Total Revenue	160,873	150,238
Corporate and Other
Disaggregation of Revenue [Line Items]
Total Revenue	3,678	4,194
Corporate and Other | Instructional services, net of grants and scholarships
Disaggregation of Revenue [Line Items]
Total Revenue	3,678	4,194
Corporate and Other | Graduation fees
Disaggregation of Revenue [Line Items]
Total Revenue	0	0
Corporate and Other | Textbook and other course materials
Disaggregation of Revenue [Line Items]
Total Revenue	0	0
Corporate and Other | Other fees
Disaggregation of Revenue [Line Items]
Total Revenue	0	0
APUS | Operating Segments
Disaggregation of Revenue [Line Items]
Total Revenue	83,946	80,656
APUS | Operating Segments | Instructional services, net of grants and scholarships
Disaggregation of Revenue [Line Items]
Total Revenue	82,551	79,805
APUS | Operating Segments | Graduation fees
Disaggregation of Revenue [Line Items]
Total Revenue	1,087	660
APUS | Operating Segments | Textbook and other course materials
Disaggregation of Revenue [Line Items]
Total Revenue	0	0
APUS | Operating Segments | Other fees
Disaggregation of Revenue [Line Items]
Total Revenue	308	191
RU | Operating Segments
Disaggregation of Revenue [Line Items]
Total Revenue	59,251	53,135
RU | Operating Segments | Instructional services, net of grants and scholarships
Disaggregation of Revenue [Line Items]
Total Revenue	49,963	44,677
RU | Operating Segments | Graduation fees
Disaggregation of Revenue [Line Items]
Total Revenue	0	0
RU | Operating Segments | Textbook and other course materials
Disaggregation of Revenue [Line Items]
Total Revenue	8,601	7,911
RU | Operating Segments | Other fees
Disaggregation of Revenue [Line Items]
Total Revenue	687	547
HCN | Operating Segments
Disaggregation of Revenue [Line Items]
Total Revenue	17,676	16,447
HCN | Operating Segments | Instructional services, net of grants and scholarships
Disaggregation of Revenue [Line Items]
Total Revenue	14,152	13,600
HCN | Operating Segments | Graduation fees
Disaggregation of Revenue [Line Items]
Total Revenue	0	0
HCN | Operating Segments | Textbook and other course materials
Disaggregation of Revenue [Line Items]
Total Revenue	3,221	2,553
HCN | Operating Segments | Other fees
Disaggregation of Revenue [Line Items]
Total Revenue	$ 303	$ 294