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Accrual Withholding Taxes Percent

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Income Tax Reconciliation Tax Reform

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Amount of income tax expense (benefit) from effect of Tax Cuts and Jobs Act of 2017.

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Unrecognized Tax Benefits, Possible Change in Balance, Period

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible domestic operating loss carryforwards. Excludes state and local operating loss carryforwards.

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

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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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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation.

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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

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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.

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The amount of estimated interest accrued as of the balance sheet date arising from income tax examinations.

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The amount of the additional liability or refund received or expected based on a final settlement with a taxing authority.

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The amount of estimated penalties and interest accrued as of the balance sheet date arising from income tax examinations.

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Amount 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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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Contingency [Line Items]
U.S. tax rate	21.00%	35.00%
Accrual withholding taxes percent	5.00%
Accrual Withholding Taxes	$ 0
Unrecognized tax benefits that would impact the effective tax rate	8,434
Accrued interest and penalties	$ 0
Possible change in balance, period	12 months
Deferred Tax Assets, Valuation Allowance	$ 9,309	$ 9,560
Foreign tax credits	167,685	15,914
US NOL carryforward	96,564
Alternative minimum tax credits	0	363
Expense (benefit) from TCJA	28,411
Tax Year 2014 [Member]
Income Tax Contingency [Line Items]
Net refund	35,087
Interest on net refund	1,539
Tax Year 2015 [Member]
Income Tax Contingency [Line Items]
Net refund	44,611
Interest on net refund	668
Tax Year 2016 [Member]
Income Tax Contingency [Line Items]
Net refund	48,268
Interest on net refund	267
ASU 2016-02 [Member]
Income Tax Contingency [Line Items]
Tax benefits related to restricted stock vestings and stock options exercises	3,453	6,951
Tax benefits related to payment of dividends on restricted stock	403	626	$ 597
Internal Revenue Service (IRS) [Member] \| Tax Years 2009 through 2013 [Member]
Income Tax Contingency [Line Items]
Net refund	43,682
Interest on net refund	1,252
Tax Cut and Jobs Act [Member]
Income Tax Contingency [Line Items]
Income tax expense	$ 8,246
Accrual Withholding Taxes		$ 8,246