Revenue Recognition - Schedule of Disaggregation of Revenue from Contracts with Customers (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Disaggregation of Revenue [Line Items]
Consolidated revenue	$ 303,590	$ 290,250
U.S. Higher Education Segment
Disaggregation of Revenue [Line Items]
Consolidated revenue	221,008	219,236
U.S. Higher Education Segment | Tuition, net of discounts, grants and scholarships
Disaggregation of Revenue [Line Items]
Consolidated revenue	211,746	209,731
U.S. Higher Education Segment | Other
Disaggregation of Revenue [Line Items]
Consolidated revenue	9,262	9,505
Australia/New Zealand Segment
Disaggregation of Revenue [Line Items]
Consolidated revenue	48,260	47,375
Australia/New Zealand Segment | Tuition, net of discounts, grants and scholarships
Disaggregation of Revenue [Line Items]
Consolidated revenue	46,446	45,634
Australia/New Zealand Segment | Other
Disaggregation of Revenue [Line Items]
Consolidated revenue	1,814	1,741
Education Technology Services Segment
Disaggregation of Revenue [Line Items]
Consolidated revenue	$ 34,322	$ 23,639