Acquisitions (Estimated Fair Values of Assets Acquired and Liabilities Assumed) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2022	Aug. 12, 2021
Assets acquired:
Goodwill	$ 961,262	$ 961,262	$ 961,262
Walden University, LLC
Assets acquired:
Cash and cash equivalents				$ 65,010
Restricted cash				18,389
Accounts receivable				22,091
Prepaid expenses and other current assets				8,819
Property and equipment				25,882
Operating lease assets				6,096
Deferred income taxes				59
Intangible assets				833,351
Goodwill				651,052
Other assets, net				21,316
Total assets acquired				1,652,065
Liabilities assumed:
Accounts payable				31,971
Accrued payroll and benefits				25,639
Accrued liabilities				1,620
Deferred revenue				10,958
Current operating lease liabilities				1,983
Long-term operating lease liabilities				4,343
Other liabilities				4,098
Total liabilities assumed				80,612
Net assets acquired				$ 1,571,453