Revenue (Disaggregate revenue) (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Disaggregation of Revenue [Line Items]
Revenue	$ 417,400	$ 368,845
Tuition and fees
Disaggregation of Revenue [Line Items]
Revenue	414,430	365,361
Other
Disaggregation of Revenue [Line Items]
Revenue	2,970	3,484
Chamberlain
Disaggregation of Revenue [Line Items]
Revenue	167,930	142,596
Chamberlain | Tuition and fees
Disaggregation of Revenue [Line Items]
Revenue	167,930	142,596
Chamberlain | Other
Disaggregation of Revenue [Line Items]
Revenue	0	0
Walden
Disaggregation of Revenue [Line Items]
Revenue	161,513	141,608
Walden | Tuition and fees
Disaggregation of Revenue [Line Items]
Revenue	161,513	141,608
Walden | Other
Disaggregation of Revenue [Line Items]
Revenue	0	0
Medical and Veterinary
Disaggregation of Revenue [Line Items]
Revenue	87,957	84,641
Medical and Veterinary | Tuition and fees
Disaggregation of Revenue [Line Items]
Revenue	84,987	81,157
Medical and Veterinary | Other
Disaggregation of Revenue [Line Items]
Revenue	$ 2,970	$ 3,484