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Share-Based Employee Compensation (Tables)
3 Months Ended
Mar. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs
The table below summarizes the amounts recognized in the financial statements for the three months ended March 31, 2016 and 2015 for share-based compensation, including expense for stock options, restricted stock units, phantom stock units, cash settled stock appreciation rights and performance share units.
 
Three Months Ended 
 March 31,
 
2016
 
2015
 
(In thousands)
Cost of sales
$
142

 
$
337

Operating expenses
1,910

 
5,033

Total cost of share-based compensation included in income, before income tax
$
2,052

 
$
5,370