XML 82 R66.htm IDEA: XBRL DOCUMENT v3.8.0.1
Income Taxes Income Taxes (Table 3) (Details)
12 Months Ended
Dec. 22, 2017
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Income Taxes [Abstract]        
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate 35.00% 35.00% 35.00% 35.00%
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential   (4.50%) (5.30%) (3.60%)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Compensation Cost, Amount   (2.20%) (3.00%) 0.00%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes   2.00% 2.00% 1.70%
Effective Income Tax Rate Reconciliation, Nondeductible Expense   0.50% 0.20% 0.14%
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent   (4.40%) 0.00% 0.00%
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance   2.70% 0.00% 0.00%
Effective Income Tax Rate Reconciliation, Deductions, Other   1.80% 0.20% 0.90%
Effective Income Tax Rate, Continuing Operations   30.90% 29.10% 34.10%