Employee Benefit Plans - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Defined Contribution Plan Disclosure [Line Items]
Employer contributions to trusteed plan, vesting schedule (in years)	5 years
Defined benefit plan assets	$ 0.0
United States
Defined Contribution Plan Disclosure [Line Items]
Employer's contribution to retirement plans	$ 0.0	$ 4.9	$ 7.3