Pension and Post-retirement Benefits (Details) $ in Millions	3 Months Ended	9 Months Ended
	Mar. 31, 2021 USD ($) plan	Mar. 31, 2021 USD ($) plan
Defined Benefit Plan Disclosure [Line Items]
Number of defined benefit pension plans | plan	2	2
Expected employer contributions for remainder of the fiscal year	$ 1.8	$ 1.8
Pension Plan | United States
Defined Benefit Plan Disclosure [Line Items]
Employer contributions	2.6	5.4
Pension Plan | Foreign Plan
Defined Benefit Plan Disclosure [Line Items]
Employer contributions	$ 0.3	$ 0.7