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Income Taxes (Narratives) (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended		12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Dec. 31, 2021	Dec. 31, 2020	Mar. 31, 2022
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	$ 0	$ 18,933
Effective Income Tax Rate Reconciliation, Percent	10.00%	9.00%		13.00%	(45.00%)
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Percent	8.00%			9.00%
Forecast [Member] | Minimum [Member]
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent						15.00%
Forecast [Member] | Maximum [Member]
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent						17.00%

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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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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 revisions of previously reported income tax expense.

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