Supplemental Disclosure of Cash Flow Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Supplemental Disclosure of Cash Flow Information
Cash paid for interest	$ 3,286	$ 1,176
Cash paid for taxes	13,099	8,749
Supplemental disclosure of non-cash financing activities:
Right-of-use assets obtained from acquisitions		1,280
Right-of-use assets obtained in exchange for new finance lease liabilities	20,881	46,865
Supplemental disclosure of non-cash investing activities:
Stock-based compensation expense capitalized on software development	143	127
Stock-based compensation expense capitalized on curriculum development	57	96
Business Combinations:
Acquired assets	464	11,120
Intangible assets, net	2,157	33,712
Goodwill	568	69,376
Assumed liabilities	(42)	(5,584)
Deferred revenue	$ (1,084)	$ (2,096)