Revenue (Disaggregate revenue) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Revenue	$ 361,231	$ 365,623	$ 371,198	$ 289,070	$ 223,466	$ 230,213	$ 234,396	$ 218,826	$ 1,387,122	$ 906,901	$ 866,427
Tuition and fees [Member]
Disaggregation of Revenue [Line Items]
Revenue									1,376,591	903,626	848,153
Other [Member]
Disaggregation of Revenue [Line Items]
Revenue									10,531	3,275	18,274
Chamberlain [Member]
Disaggregation of Revenue [Line Items]
Revenue									557,536	563,814	511,655
Walden University
Disaggregation of Revenue [Line Items]
Revenue									485,393
Medical and Veterinary [Member]
Disaggregation of Revenue [Line Items]
Revenue									344,193	343,087	354,772
Chamberlain [Member]
Disaggregation of Revenue [Line Items]
Revenue									557,536	563,814	511,655
Chamberlain [Member] | Tuition and fees [Member]
Disaggregation of Revenue [Line Items]
Revenue									557,536	563,814	511,655
Chamberlain [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Revenue									0	0
Walden University
Disaggregation of Revenue [Line Items]
Revenue									485,393	0
Walden University | Tuition and fees [Member]
Disaggregation of Revenue [Line Items]
Revenue									485,393	0
Walden University | Other [Member]
Disaggregation of Revenue [Line Items]
Revenue									0	0
Medical and Veterinary [Member]
Disaggregation of Revenue [Line Items]
Revenue									344,193	343,087	354,772
Medical and Veterinary [Member] | Tuition and fees [Member]
Disaggregation of Revenue [Line Items]
Revenue									333,662	339,812	336,498
Medical and Veterinary [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Revenue									$ 10,531	$ 3,275	$ 18,274