Segment Information - Financial Information by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2025	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Segment Reporting Information [Line Items]
Total Revenue	$ 158,330	$ 163,215	$ 162,766	$ 164,551	$ 164,110	$ 153,122	$ 152,895	$ 154,432	$ 648,862	$ 624,559	$ 600,545
Instructional costs and services									297,020	295,703	292,862
Selling and promotional									137,252	128,810	132,955
General and administrative									144,582	141,961	128,239
(Loss) income from operations before interest and income taxes									47,935	33,066	(48,306)
Operating Segments
Segment Reporting Information [Line Items]
Total Revenue									641,056	600,601	574,325
(Loss) income from operations before interest and income taxes									94,011	66,502	(20,545)
Operating Segments | APUS Segment
Segment Reporting Information [Line Items]
Total Revenue									319,842	317,049	303,303
Instructional costs and services									103,920	103,745	97,246
Selling and promotional									62,884	58,563	57,580
General and administrative									56,584	58,807	55,992
Other									5,629	6,512	8,059
(Loss) income from operations before interest and income taxes									90,825	89,422	84,426
Operating Segments | RU Segment
Segment Reporting Information [Line Items]
Total Revenue									246,231	216,262	214,086
Instructional costs and services									139,421	133,448	140,861
Selling and promotional									64,045	58,682	66,571
General and administrative									29,876	30,324	25,401
Other									8,849	15,606	84,828
(Loss) income from operations before interest and income taxes									4,040	(21,798)	(103,575)
Operating Segments | HCN Segment
Segment Reporting Information [Line Items]
Total Revenue									74,983	67,290	56,936
Instructional costs and services									46,623	43,795	38,582
Selling and promotional									7,773	6,923	4,312
General and administrative									19,285	15,989	14,182
Other									2,156	1,705	1,256
(Loss) income from operations before interest and income taxes									(854)	(1,122)	(1,396)
Corporate and Other
Segment Reporting Information [Line Items]
Total Revenue									7,806	23,958	26,220
Instructional costs and services									7,056	14,715	16,173
Selling and promotional									2,550	4,642	4,492
General and administrative									38,837	36,841	32,664
Other									5,439	1,196	652
(Loss) income from operations before interest and income taxes									$ (46,076)	$ (33,436)	$ (27,761)