Stock-Based Compensation Plans Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Tax benefits as a percentage of compensation expense	22.10%	17.80%	21.90%
Statutory tax rate	21.00%	21.00%	21.00%
Total unrecognized compensation cost	$ 10.6
Weighted average period for recognition of compensation expense	1 year 8 months 12 days
Percentage of fair value at purchase date	85.00%
Discount from market price, purchase date	15.00%
Employee Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for future grants under the stock option and compensation plan	4,400,000
Directors' Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for future grants under the stock option and compensation plan	398,300
Restricted Stock/RSUs/PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life of options	3 years	3 years	3 years
Weighted average grant date fair value, options granted (in dollars per share)	$ 10.63	$ 14.93	$ 16.94

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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

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Discount rate from fair value on purchase date that participants pay for shares.

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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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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices.

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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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