Segment Reporting - Schedule of Financial Information by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Revenues
Revenues	$ 305,958	$ 285,936	$ 908,474	$ 830,222
Income from operations
Consolidated income from operations	36,326	25,629	119,606	41,097
Amortization of intangible assets	0	(3,382)	0	(10,364)
Merger and integration costs	0	(330)	0	(1,335)
Restructuring costs	(758)	(3,262)	2,757	(15,208)
U.S. Higher Education
Revenues
Revenues	207,709	201,828	643,558	601,402
Income from operations
Consolidated income from operations	11,446	10,412	59,284	26,742
Australia / New Zealand
Revenues
Revenues	71,948	63,264	190,453	170,239
Income from operations
Consolidated income from operations	14,846	13,875	26,651	20,984
Education Technology Services
Revenues
Revenues	26,301	20,844	74,463	58,581
Income from operations
Consolidated income from operations	$ 10,792	$ 8,316	$ 30,914	$ 20,278