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Income Taxes (Tables)
 3 Months Ended
Mar. 31, 2017
Income Tax Disclosure [Abstract]  
Schedule Of Effective Income Tax Rate For Continuing Operations
he significant differences between the U.S. federal statutory rate and the effective income tax rate for the three months ended March 31, 2017 and 2016 are as follows:
 
Percent of Income
Before Income Taxes
Three Months Ended March 31,
2017
 
2016
Income tax expense at federal statutory rate
35.0

 
35.0

Foreign rate differences
5.9

 
(0.9
)
State taxes, net of federal income tax benefit
4.2

 
0.6

Valuation allowance for foreign operating loss carry-forwards
2.3

 
0.1

Non-deductible expenses
1.9

 
1.0

Changes in estimates related to prior year tax provision
1.9

 
(0.2
)
Income tax contingency accruals and tax settlements
1.2

 
0.9

Unremitted earnings from foreign operations
(1.1
)
 
(0.9
)
Research and development tax credit
(2.4
)
 
(0.9
)
Domestic production activities deduction
(2.8
)
 
(2.7
)
Foreign investment write-up
(6.6
)
 
(0.3
)
Valuation allowance for capital loss carry-forwards
—

 
(1.1
)
Effective income tax rate
39.5

 
30.6