Retirement Plans (Schedule of Multiemployer Plans) (Details) - Steelworkers Pension Trust [Member] - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Multiemployer Plans [Line Items]
Plan number	499
PPA zone status	Green	Green
Funding plan pending / implemented	No
Company contributions to the Trust	$ 691	$ 647	$ 711
Surcharge imposed	No

Amount of cost for employer contribution to multiemployer plan. Multiemployer plan includes, but is not limited to, pension plan determined to be individually significant and insignificant and other postretirement benefit plan.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Indicates whether funding improvement plan or rehabilitation plan was implemented or pending for multiemployer pension plan, determined to be individually insignificant. Acceptable values are "No", "Pending", "Implemented", "Other", and "NA".

+ References

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- Definition

Indicates whether employer paid surcharge to multiemployer pension plan determined to be individually insignificant. Acceptable values are "No", "Yes" and "NA".

+ References

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- Definition

Indicates certified zone status of multiemployer pension plan determined to be individually significant. Acceptable values are "Green", "Yellow", "Orange", "Red", "Other", and "NA".

+ References

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- Definition

Plan number for multiemployer pension plan determined to be individually significant, in three-digit numeric format.

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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.

+ References

No definition available.

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