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, 2015
Dec. 31, 2014
Dec. 31, 2013
Income Taxes [Abstract]      
Statutory tax rate 26.50% 26.50% 25.00%
Approved and Privileged enterprise benefits (0.40%) 3.70% 6.00%
Goodwill and intangibles impairment (15.30%) (17.30%)
Revaluation of obligations in connection with acquisitions 0.20% 3.10%
Stock compensation expense (0.40%) (3.70%) (17.30%)
Tax contingencies (0.30%) 1.60% (12.10%)
Non-deductible acquisition expenses (0.10%) (0.10%) (4.80%)
Earning taxed under foreign law 1.40% 9.60% 13.20%
Valuation Allowance (11.00%)
Other 0.10% (0.60%) (1.60%)
Effective income tax rate 0.70% 22.80% 8.40%