Discontinued Operations and Assets Held for Sale (Summary of Income Statement Information of Operations) (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
Discontinued Operations And Disposal Groups [Abstract]
Revenue									$ 153,762	$ 205,479	$ 343,269
Operating cost and expense:
Cost of educational services									26,996	31,328	138,008
Student services and administrative expense									125,661	161,730	228,996
Restructuring expense									1,500	2,936	5,591
Total operating cost and expense									154,157	195,994	372,595
Operating (loss) income									(395)	9,485	(29,326)
Interest and dividend income									0	0	1,862
Interest expense									0	0	(2,922)
Net other expense									0	0	(1,060)
Income (loss) from discontinued operations before income taxes									(395)	9,485	(30,386)
Gain (loss) on disposal of discontinued operations before income taxes (includes ($293,360) accumulated other comprehensive income reclassifications for realized loss on foreign currency translation adjustments for the year ended June 30, 2020)									473,483	0	(287,560)
(Provision for) benefit from income taxes									(125,556)	(3,340)	12,243
Income (loss) from discontinued operations									347,532	6,145	(305,703)
Net loss attributable to redeemable noncontrolling interest from discontinued operations									0	434	444
Net income from discontinued operations attributable to Adtalem	$ 5,550	$ 343,985	$ (21,181)	$ 19,178	$ 6,447	$ 414	$ (626)	$ 344	$ 347,532	$ 6,579	$ (305,259)