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Differences between the United States federal statutory income tax rate and the effective income tax rate were as follows: (Details)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Statutory rates	21.00%	21.00%	21.00%
State and local taxes, net of Federal benefit	0.20%	0.30%	0.20%
Windfall benefit from exercise of stock options	(0.40%)	(0.90%)	(0.60%)
Benefit of Foreign Derived Intangible Income	(0.80%)	(0.60%)	(0.40%)
Effect of foreign taxes greater than U.S. statutory rates	3.10%	7.40%	7.50%
Other	(0.90%)	(0.10%)	0.20%
Effective rates	22.20%	27.10%	27.90%

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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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-Publisher FASB
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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 deduction for dividend paid to employee stock ownership plan.

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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 applicable to statutory income tax expense (benefit) outside of the country of domicile.

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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 other adjustments.

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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 applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).

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