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Revenue Recognition - Schedule of Disaggregation of Revenue from Contracts with Customers (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Disaggregation of Revenue [Line Items]
Consolidated revenue	$ 312,266	$ 287,680	$ 602,516	$ 544,286
U.S. Higher Education Segment
Disaggregation of Revenue [Line Items]
Consolidated revenue	216,613	202,679	435,849	399,574
U.S. Higher Education Segment | Tuition, net of discounts, grants and scholarships
Disaggregation of Revenue [Line Items]
Consolidated revenue	207,571	194,362	417,302	382,875
U.S. Higher Education Segment | Other
Disaggregation of Revenue [Line Items]
Consolidated revenue	9,042	8,317	18,547	16,699
Australia/New Zealand Segment
Disaggregation of Revenue [Line Items]
Consolidated revenue	71,130	65,472	118,505	106,975
Australia/New Zealand Segment | Tuition, net of discounts, grants and scholarships
Disaggregation of Revenue [Line Items]
Consolidated revenue	69,004	63,766	114,638	104,188
Australia/New Zealand Segment | Other
Disaggregation of Revenue [Line Items]
Consolidated revenue	2,126	1,706	3,867	2,787
Education Technology Services Segment
Disaggregation of Revenue [Line Items]
Consolidated revenue	$ 24,523	$ 19,529	$ 48,162	$ 37,737

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