Supplemental Disclosure of Cash Flow Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Supplemental Disclosure of Cash Flow Information
Cash paid for interest	$ 660	$ 862
Cash paid for taxes	2,796	1,010
Right-of-use assets obtained as a result of the adoption of ASC 842	108,368
Supplemental disclosure of non-cash financing activities:
Right-of-use assets obtained in exchange for new finance lease liabilities	16,490	19,076
Supplemental disclosure of non-cash investing activities:
Stock-based compensation expense capitalized on software development	92	101
Stock-based compensation expense capitalized on curriculum development	$ 135	$ 176