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Income Taxes (Tables)
9 Months Ended
Sep. 30, 2016
Income Tax Disclosure [Abstract]  
Schedule of Components of Income Tax Expense

The following table presents components of income tax expense for the three and nine months ended September 30, 2016 and 2015:

   Three months ended
September 30,
  Nine months ended
September 30,
(in thousands)  2016  2015  2016  2015
Income tax based on income from continuing operations, at estimated tax rates of 37.5% in 2016 and 38.0% in 2015  $7,838   $8,331   $21,545   $15,285 
Effect of change in estimated tax rate  (424)  (1,002)  -   - 
Income tax expense before discrete items  7,414   7,329   21,545   15,285 
                 
Discrete tax expense/(benefit):                
Provision for/resolution of tax audits and contingencies, net  -   4,521   (825)  4,505 
Adjustments to prior period tax liabilities  (11)  (581)  (254)  (641)
Other discrete tax adjustments, net  85   968   113   1,152 
Enacted tax legislation  -   6   34   97 
Total income tax expense  $7,488   $12,243   $20,613   $20,398