Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Award Paid in Cash

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Award Paid in Stock

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Shares Awarded After Performance Period, as a Percentage of Targeted Amount

+ References

No definition available.

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- Definition

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

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Weighted-average period over which cost not yet recognized is expected to be recognized for 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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- Definition

Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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- Definition

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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- Definition

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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- 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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Employee Benefit Plans (Performance Shares and Compensation Expense) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Performance Share Units (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares awarded (in shares)	199,500	156,600	313,100
Percentage of award paid in stock	50.00%
Percentage of award paid in cash	50.00%
Performance period	3 years
Compensation expense	$ 29.2	$ 22.1	$ 47.1
Total unrecognized compensation expense related to outstanding restricted stock units and restricted shares	$ 21.9
Weighted average period for compensation expense recognition	1 year
Performance Share Units (PSUs) \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares awarded after performance period, as a percentage of targeted amount	0.00%
Performance Share Units (PSUs) \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares awarded after performance period, as a percentage of targeted amount	150.00%
Performance Shares Earned as Dividend Equivalents
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares awarded (in shares)	10,511	11,304	13,586
Executive Officer \| Performance Share Units (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares awarded (in shares)	80,452	79,043	181,322
Employees Other Than Named Executive Officers \| Performance Share Units (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares awarded (in shares)	108,560	66,296	118,168
Percentage of award paid in stock	100.00%
Chief Executive Officer \| Performance Share Units (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense			$ 16.0