Revenue Recognition - Summary of Disaggregation of Revenue by Major Source (Detail) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2025	Mar. 31, 2024
Disaggregation Of Revenue [Line Items]
Total revenue		$ 213,004	$ 168,264
Tuition, Net [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	[1]	202,314	159,269
Technology and Other Fees [Member]
Disaggregation Of Revenue [Line Items]
Total revenue		9,534	7,729
Tuition and Fees, Net [Member]
Disaggregation Of Revenue [Line Items]
Total revenue		211,848	166,998
Other [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	[2]	1,156	1,266
University Group [Member] | CTU [Member]
Disaggregation Of Revenue [Line Items]
Total revenue		119,579	113,569
University Group [Member] | AIUS [Member]
Disaggregation Of Revenue [Line Items]
Total revenue		54,059	54,505
University Group [Member] | USAHS [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	[3]	39,183
University Group [Member] | Tuition, Net [Member] | CTU [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	[1]	113,658	107,440
University Group [Member] | Tuition, Net [Member] | AIUS [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	[1]	51,492	51,829
University Group [Member] | Tuition, Net [Member] | USAHS [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	[1],[3]	37,164
University Group [Member] | Technology and Other Fees [Member] | CTU [Member]
Disaggregation Of Revenue [Line Items]
Total revenue		5,179	5,340
University Group [Member] | Technology and Other Fees [Member] | AIUS [Member]
Disaggregation Of Revenue [Line Items]
Total revenue		2,338	2,389
University Group [Member] | Technology and Other Fees [Member] | USAHS [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	[3]	2,017
University Group [Member] | Tuition and Fees, Net [Member] | CTU [Member]
Disaggregation Of Revenue [Line Items]
Total revenue		118,837	112,780
University Group [Member] | Tuition and Fees, Net [Member] | AIUS [Member]
Disaggregation Of Revenue [Line Items]
Total revenue		53,830	54,218
University Group [Member] | Tuition and Fees, Net [Member] | USAHS [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	[3]	39,181
University Group [Member] | Other [Member] | CTU [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	[2]	742	789
University Group [Member] | Other [Member] | AIUS [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	[2]	229	287
University Group [Member] | Other [Member] | USAHS [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	[2],[3]	2
Corporate and Other [Member]
Disaggregation Of Revenue [Line Items]
Total revenue		183	190
Corporate and Other [Member] | Other [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	[2]	$ 183	$ 190

[1] Tuition includes revenue earned for all degree-granting programs as well as revenue earned for non-degree and professional development programs.

[2] Other revenue primarily includes contract training revenue and miscellaneous non-student related revenue.

[3] USAHS includes revenue beginning on the acquisition date of December 2, 2024.