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, 2016
Dec. 31, 2015
Dec. 31, 2014
Income Tax Disclosure [Abstract]      
Statutory tax rate 25.00% 26.50% 26.50%
Approved and Privileged enterprise benefits 7.00% (0.40%) 3.70%
Goodwill impairment (15.30%) (17.30%)
Revaluation of obligations in connection with acquisitions 0.20% 3.10%
Stock compensation expense (2.40%) (0.40%) (3.70%)
Tax contingencies (4.70%) (0.30%) 1.60%
Non-deductible acquisition expenses (0.20%) (0.10%) (0.10%)
Earning taxed under foreign law 34.40% 1.40% 9.60%
Valuation allowance (57.00%) (11.00%)
Changes to the prior year's tax assessment 7.90%
Other 0.90% 0.10% (0.60%)
Effective income tax rate 10.90% 0.70% 22.80%