Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ 40,744	$ 52,195	$ 77,980	$ 95,490
Effective tax rate	26.00%	43.00%	23.00%	38.00%
Foreign tax credit carry forwards	$ 35,900		$ 35,900
Valuation allowance	35,900		35,900
Second component of tax deductible goodwill, net of tax	$ 1,000		$ 1,000

Second component of tax deductible goodwill, net of tax

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign tax credit carryforwards.

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

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Amount of valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from tax credit carryforwards for which it is more likely than not that a tax benefit will not be realized.

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