Segment Information - Schedule of Financial Information by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Revenue:
Total Revenue	$ 152,895	$ 147,214	$ 307,327	$ 296,903
Depreciation and amortization:
Total Depreciation and amortization	5,232	7,953	10,360	15,709
Income (loss) from operations before interest and income taxes:
Total income (loss) from operations before interest and income taxes	2,220	(65,268)	7,402	(70,638)
Interest income (expense):
Total Interest expense, net	(785)	(1,097)	(911)	(2,876)
Income tax expense (benefit):
Total Income tax expense (benefit)	(16)	(15,137)	1,197	(16,551)
Capital expenditures:
Total Capital Expenditures	5,198	3,347	11,416	6,553
Corporate and Other
Revenue:
Total Revenue	6,404	7,420	10,598	12,524
Depreciation and amortization:
Total Depreciation and amortization	321	144	603	283
Income (loss) from operations before interest and income taxes:
Total income (loss) from operations before interest and income taxes	(6,501)	(6,700)	(15,136)	(14,977)
Interest income (expense):
Total Interest expense, net	(1,270)	(1,789)	(1,833)	(3,748)
Income tax expense (benefit):
Total Income tax expense (benefit)	(3,756)	(1,280)	(7,222)	(3,908)
Capital expenditures:
Total Capital Expenditures	930	514	1,578	587
APUS Segment | Operating Segments
Revenue:
Total Revenue	77,048	73,557	157,704	147,535
Depreciation and amortization:
Total Depreciation and amortization	1,215	1,291	2,455	2,691
Income (loss) from operations before interest and income taxes:
Total income (loss) from operations before interest and income taxes	18,291	18,941	41,378	36,015
Interest income (expense):
Total Interest expense, net	468	669	880	829
Income tax expense (benefit):
Total Income tax expense (benefit)	7,364	4,207	14,845	9,720
Capital expenditures:
Total Capital Expenditures	829	1,349	1,430	1,649
RU Segment | Operating Segments
Revenue:
Total Revenue	53,034	51,971	106,169	109,438
Depreciation and amortization:
Total Depreciation and amortization	3,331	6,195	6,615	12,122
Income (loss) from operations before interest and income taxes:
Total income (loss) from operations before interest and income taxes	(8,826)	(77,274)	(17,792)	(90,138)
Interest income (expense):
Total Interest expense, net	(10)	0	(10)	1
Income tax expense (benefit):
Total Income tax expense (benefit)	(3,366)	(18,224)	(6,097)	(22,178)
Capital expenditures:
Total Capital Expenditures	1,005	1,279	3,752	3,285
HCN Segment | Operating Segments
Revenue:
Total Revenue	16,409	14,266	32,856	27,406
Depreciation and amortization:
Total Depreciation and amortization	365	323	687	613
Income (loss) from operations before interest and income taxes:
Total income (loss) from operations before interest and income taxes	(744)	(235)	(1,048)	(1,538)
Interest income (expense):
Total Interest expense, net	27	23	52	42
Income tax expense (benefit):
Total Income tax expense (benefit)	(258)	160	(329)	(185)
Capital expenditures:
Total Capital Expenditures	$ 2,434	$ 205	$ 4,656	$ 1,032