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Revenue (Disaggregate revenue) (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Disaggregation of Revenue [Line Items]
Revenue	$ 462,288	$ 417,400
Tuition and fees
Disaggregation of Revenue [Line Items]
Revenue	460,098	414,430
Other
Disaggregation of Revenue [Line Items]
Revenue	2,190	2,970
Chamberlain
Disaggregation of Revenue [Line Items]
Revenue	179,201	167,930
Chamberlain | Tuition and fees
Disaggregation of Revenue [Line Items]
Revenue	179,201	167,930
Chamberlain | Other
Disaggregation of Revenue [Line Items]
Revenue	0	0
Walden
Disaggregation of Revenue [Line Items]
Revenue	189,960	161,513
Walden | Tuition and fees
Disaggregation of Revenue [Line Items]
Revenue	189,960	161,513
Walden | Other
Disaggregation of Revenue [Line Items]
Revenue	0	0
Medical and Veterinary
Disaggregation of Revenue [Line Items]
Revenue	93,127	87,957
Medical and Veterinary | Tuition and fees
Disaggregation of Revenue [Line Items]
Revenue	90,937	84,987
Medical and Veterinary | Other
Disaggregation of Revenue [Line Items]
Revenue	$ 2,190	$ 2,970

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