Segment Information - Summary of Financial Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Segment Reporting Information [Line Items]
Depreciation and amortization	$ 3,946	$ 5,080	$ 12,026	$ 15,440
Interest expense, net	(1,069)	(631)	(3,064)	(1,542)
Income tax expense (benefit)	3,068	1,236	6,955	2,433
Operating Segments
Segment Reporting Information [Line Items]
Depreciation and amortization	3,541	4,797	10,868	14,554
Interest expense, net	559	456	1,924	1,378
Income tax expense (benefit)	7,899	5,342	20,556	13,761
Operating Segments | APUS Segment
Segment Reporting Information [Line Items]
Depreciation and amortization	939	1,216	2,951	3,671
Interest expense, net	401	394	1,082	1,274
Income tax expense (benefit)	8,556	8,580	22,320	23,425
Operating Segments | RU Segment
Segment Reporting Information [Line Items]
Depreciation and amortization	2,065	3,069	6,342	9,684
Interest expense, net	87	(9)	601	(19)
Income tax expense (benefit)	(394)	(3,051)	(1,161)	(9,148)
Operating Segments | HCN
Segment Reporting Information [Line Items]
Depreciation and amortization	537	512	1,575	1,199
Interest expense, net	71	71	241	123
Income tax expense (benefit)	(263)	(187)	(603)	(516)
Corporate and Other
Segment Reporting Information [Line Items]
Depreciation and amortization	405	283	1,158	886
Interest expense, net	(1,628)	(1,087)	(4,988)	(2,920)
Income tax expense (benefit)	$ (4,831)	$ (4,106)	$ (13,601)	$ (11,328)