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Amount of change in intrinsic value of outstanding award under share-based payment arrangement. Excludes share and unit options.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Intrinsic value of outstanding award under share-based payment arrangement. Excludes share and unit options.

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Equity Incentive Plan - Long Term Incentive Plan (LTIP) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended				12 Months Ended
	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2021	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Performance Share Units
Equity Transactions
Granted (in shares)	354,090
Granted (in dollars per share)	$ 40.77
Unrecognized compensation	$ 15.1
Weighted average period for recognition of total unrecognized compensation expense related to unvested stock options granted	2 years 1 month 6 days
Stock based compensation expense	$ 4.5		$ 0.9
Performance Share Units \| Fiscal Year 2021 MIP
Equity Transactions
Granted (in shares)		37,886		38,575
Earned award vesting percentage		33.33%		33.33%
Performance Share Units \| Fiscal Year 2022 LTIP
Equity Transactions
Granted (in shares)						250,250
Granted (in dollars per share)						$ 36.30
Vesting period						3 years
Fair value						$ 9.1
Performance Share Units \| Fiscal Year 2023 LTIP
Equity Transactions
Granted (in shares)					289,640
Granted (in dollars per share)					$ 34.41
Vesting period					3 years
Fair value					$ 10.0
Performance Share Units \| Fiscal Year 2024 LTIP
Equity Transactions
Granted (in shares)	354,090
Granted (in dollars per share)	$ 40.84
Vesting period	3 years
Fair value	$ 14.4
Performance Share Units \| Tech Elevator
Equity Transactions
Stock based compensation expense	$ 0.2		$ 0.3
Performance Share Units \| Tech Elevator \| Fiscal Year 2021 MIP
Equity Transactions
Intrinsic value of awards							$ 4.0
Performance Shares Tranche #1
Equity Transactions
Fair value					4.8
Share based payment award fair market value decrease					$ 0.8
Performance Shares Tranche #1 \| Vest immediately \| Fiscal Year 2022 LTIP
Equity Transactions
Earned award vesting percentage						50.00%
Performance Shares Tranche #1 \| Vest immediately \| Fiscal Year 2023 LTIP
Equity Transactions
Earned award vesting percentage					50.00%
Performance Shares Tranche #1 \| Vest immediately \| Fiscal Year 2024 LTIP
Equity Transactions
Earned award vesting percentage	75.00%
Performance Shares Tranche #1 \| Vest annually over two years. \| Fiscal Year 2022 LTIP
Equity Transactions
Earned award vesting percentage						50.00%
Performance Shares Tranche #1 \| Vest annually over two years. \| Fiscal Year 2023 LTIP
Equity Transactions
Earned award vesting percentage					50.00%
Performance Shares Tranche #1 \| Vest annually over two years. \| Fiscal Year 2024 LTIP
Equity Transactions
Earned award vesting percentage	25.00%
Time Based Award \| Tech Elevator \| Fiscal Year 2021 MIP
Equity Transactions
Vesting period						3 years
Intrinsic value of awards							$ 4.0
Time Based Award \| Vest immediately \| Tech Elevator \| Fiscal Year 2021 MIP
Equity Transactions
Earned award vesting percentage							70.00%
Time Based Award \| Vest annually over two years. \| Tech Elevator \| Fiscal Year 2021 MIP
Equity Transactions
Earned award vesting percentage							30.00%