Leases - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Leases [Abstract]
Operating lease costs	$ 2.3	$ 2.4
Short-term operating lease costs	0.1	0.1
Cash paid for amounts included in the measurement of operating lease liabilities	2.5	2.4
Operating lease liabilities arising from obtaining operating right of-use assets	$ 0.9	$ 0.2