Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Income Taxes (Schedule of Reconciliation of Income Tax Rate) (Details)

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Income Taxes (Schedule of Reconciliation of Income Tax Rate) (Details)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Income Tax Disclosure [Abstract]      
Statutory tax rate 23.00% 23.00% 24.00%
Approved and Beneficiary Enterprises benefits 18.00% 16.00% 15.70%
US Tax Act enactment (222.50%)
Stock compensation expense (21.00%) (24.00%) (5.30%)
Tax contingencies (57.10%) (38.40%) (30.80%)
Non-deductible acquisition expenses (1.40%) (2.30%) (0.60%)
Earning taxed under foreign law (14.90%) (21.60%) 43.30%
Valuation allowance 6.40% 144.40%
Changes to the prior year's tax assessment (2.70%) (15.30%) (1.20%)
Non recurring Capital gain 11.50%
Whitholding tax (1.70%)
Other (2.60%) (1.40%) 1.50%
Effective income tax rate (48.90%) (57.60%) (31.50%)