Pension and Other Postretirement Benefits - Narrative (Details) - Pension Plans - USD ($) $ in Millions	6 Months Ended
Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Contributions	$ 4.8	$ 0.0
Expected contributions for next fiscal year	$ 6.4

Amount of contribution received by defined benefit plan from employer which increases plan assets.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration