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Revenue (Disaggregate revenue) (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Disaggregation of Revenue [Line Items]
Revenue	$ 368,845	$ 354,269
Tuition and fees
Disaggregation of Revenue [Line Items]
Revenue	365,361	351,530
Other
Disaggregation of Revenue [Line Items]
Revenue	3,484	2,739
Chamberlain
Disaggregation of Revenue [Line Items]
Revenue	142,596	135,405
Chamberlain | Tuition and fees
Disaggregation of Revenue [Line Items]
Revenue	142,596	135,405
Chamberlain | Other
Disaggregation of Revenue [Line Items]
Revenue	0	0
Walden
Disaggregation of Revenue [Line Items]
Revenue	141,608	130,901
Walden | Tuition and fees
Disaggregation of Revenue [Line Items]
Revenue	141,608	130,901
Walden | Other
Disaggregation of Revenue [Line Items]
Revenue	0	0
Medical and Veterinary
Disaggregation of Revenue [Line Items]
Revenue	84,641	87,963
Medical and Veterinary | Tuition and fees
Disaggregation of Revenue [Line Items]
Revenue	81,157	85,224
Medical and Veterinary | Other
Disaggregation of Revenue [Line Items]
Revenue	$ 3,484	$ 2,739

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