Tax Receivable Agreement Liability (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Tax Receivable Agreement [Abstract]
Tax receivable agreement, percentage of realized cash saving in tax to be pass through	85.00%
Tax Receivable Agreement [Roll Forward]
Beginning balance	$ 49,665	$ 53,754
Additions (reductions) to tax receivable agreement:
Exchange of LLC Units for Class A Common Stock	2,142	1,041
Adjustment for change in estimated tax rate	(88)	(1,672)	$ (103)
Payment under tax receivable agreement	(3,505)	(3,458)	(3,865)
Ending balance	48,214	49,665	$ 53,754
Less current portion under tax receivable agreement	(3,773)	(3,589)
Payable pursuant to tax receivable agreement, less current portion	44,441	46,076
Investment in subsidiaries	$ 114,242	$ 111,511