Discontinued Operations and Assets Held for Sale (Summary of Income Statement Information of Operations) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Discontinued Operations And Disposal Groups [Abstract]
Revenue	$ 0	$ 45,652
Operating cost and expense:
Cost of educational services	0	33,948
Student services and administrative expense	10,084	14,373
Restructuring expense	0	35
Total operating cost and expense	10,084	48,356
Operating loss	(10,084)	(2,704)
Interest and dividend income	0	978
Interest expense	0	(1,157)
Net other expense	0	(179)
Loss from discontinued operations before income taxes	(10,084)	(2,883)
Benefit from (provision for) income taxes	2,477	(273)
Net loss from discontinued operations	$ (7,607)	$ (3,156)