Stock-Based and Other Long-Term Incentive Compensation (Details) - $ / shares shares in Millions	3 Months Ended
Jun. 30, 2025	Sep. 30, 2025
Performance-based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity-based compensation (in shares)	0.4
Percentage of outstanding stock, minimum	0.00%
Percentage of outstanding stock, maximum	200.00%
Percentage of risk-free interest rate	4.00%
Expected life (in years)	3 years
Percentage of expected volatility	49.80%
Performance-based Restricted Stock Units, TSR Portion
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant-date fair value (in dollars per share)	$ 11.57
Percentage of share based payment arrangement settlement based on total shareholder return	70.00%
Performance-based Restricted Stock Units, RONCE Portion
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Weighted average grant-date fair value (in dollars per share)	$ 8.45
Percentage of return on net capital employed	30.00%
The 2015 Plan \| Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)	0.6
Award vesting period	3 years
The 2015 Plan \| Restricted Stock Units \| Executive Officer And Key Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant-date fair value (in dollars per share)	$ 8.45
Shares available for grant (in shares)		3.0
The 2015 Plan \| Restricted Stock \| Executive Officer And Key Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity-based compensation (in shares)	0.1
Weighted average grant-date fair value (in dollars per share)	$ 8.28
The 2014 Director Plan \| Restricted Stock Units \| Executive Officer And Key Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for grant (in shares)		0.3
2025 Awards \| Performance-based Restricted Stock Units, RONCE Portion
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
2026 Awards \| Performance-based Restricted Stock Units, RONCE Portion
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
2027 Awards \| Performance-based Restricted Stock Units, RONCE Portion
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years

Share Based Compensation Arrangement by Share Based Payment Award, Percentage of Outstanding Stock Minimum

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Share-Based Payment Arrangement, Return on Net Capital Employed, Percentage

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Share Based Payment Arrangement, Settlement Based On Total Shareholder Return, Percentage

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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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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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- Definition

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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Number of shares authorized for issuance under share-based payment arrangement.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Maximum number of shares that may be issued in accordance with the plan as a proportion of outstanding capital stock.

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Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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