Amount of gain (loss) recognized in net periodic benefit (cost) credit from irrevocable action relieving primary responsibility for benefit obligation and eliminating risk related to obligation and assets used to effect settlement.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the income tax rates.

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Income Taxes (Narratives) (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020	Sep. 30, 2021
Income tax expense as a percentage of income from continuing operations	21.00%
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement	$ 0	$ 2,722
Effective Income Tax Rate Reconciliation, Percent	26.00%		24.00%
Effective Income Tax Rate Reconciliation,Other Reconciling Items, Percent	300.00%
Forecast [Member] \| Minimum [Member]
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent				21.00%
Forecast [Member] \| Maximum [Member]
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent				23.00%