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Revenue Recognition - Schedule of Disaggregation of Revenue from Contracts with Customers (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Consolidated revenue	$ 1,219,930	$ 1,132,924	$ 1,065,480
U.S. Higher Education
Disaggregation of Revenue [Line Items]
Consolidated revenue	857,890	818,953	770,979
U.S. Higher Education | Tuition, net of discounts, grants and scholarships
Disaggregation of Revenue [Line Items]
Consolidated revenue	820,913	784,066	738,050
U.S. Higher Education | Other
Disaggregation of Revenue [Line Items]
Consolidated revenue	36,977	34,887	32,929
Australia / New Zealand
Disaggregation of Revenue [Line Items]
Consolidated revenue	257,119	233,518	230,747
Australia / New Zealand | Tuition, net of discounts, grants and scholarships
Disaggregation of Revenue [Line Items]
Consolidated revenue	249,336	226,393	224,400
Australia / New Zealand | Other
Disaggregation of Revenue [Line Items]
Consolidated revenue	7,783	7,125	6,347
Education Technology Services
Disaggregation of Revenue [Line Items]
Consolidated revenue	$ 104,921	$ 80,453	$ 63,754

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