Segment Reporting - Schedule of Financial Information by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Segment Reporting Information [Line Items]
Revenues	$ 303,590	$ 290,250
Segment expenses
Segment income (loss) from operations	39,794	41,356
Unallocated expenses
Restructuring costs	1,914	(5,510)
Consolidated income from operations	39,794	41,356
Other income	2,211	1,794
Income before income taxes	42,005	43,150
Segments
Segment Reporting Information [Line Items]
Revenues	303,590	290,250
Segment expenses
Direct segment expenses	239,597	233,333
Enterprise shared services allocation	22,285	21,071
Segment income (loss) from operations	41,708	35,846
Unallocated expenses
Consolidated income from operations	41,708	35,846
Unallocated expenses
Unallocated expenses
Restructuring costs	1,914	(5,510)
U.S. Higher Education
Segment Reporting Information [Line Items]
Revenues	221,008	219,236
U.S. Higher Education | Segments
Segment Reporting Information [Line Items]
Revenues	221,008	219,236
Segment expenses
Direct segment expenses	175,538	175,695
Enterprise shared services allocation	15,514	15,528
Segment income (loss) from operations	29,956	28,013
Unallocated expenses
Consolidated income from operations	29,956	28,013
Australia / New Zealand
Segment Reporting Information [Line Items]
Revenues	48,260	47,375
Australia / New Zealand | Segments
Segment Reporting Information [Line Items]
Revenues	48,260	47,375
Segment expenses
Direct segment expenses	45,251	45,209
Enterprise shared services allocation	5,105	4,421
Segment income (loss) from operations	(2,096)	(2,255)
Unallocated expenses
Consolidated income from operations	(2,096)	(2,255)
Education Technology Services
Segment Reporting Information [Line Items]
Revenues	34,322	23,639
Education Technology Services | Segments
Segment Reporting Information [Line Items]
Revenues	34,322	23,639
Segment expenses
Direct segment expenses	18,808	12,429
Enterprise shared services allocation	1,666	1,122
Segment income (loss) from operations	13,848	10,088
Unallocated expenses
Consolidated income from operations	$ 13,848	$ 10,088