XML 37 R26.htm IDEA: XBRL DOCUMENT v3.8.0.1
Stock-Based Compensation (Tables)
 3 Months Ended
Mar. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Summary of Compensation Expense and Related Tax Benefits
The following table presents compensation expense and the related tax benefits for equity awards recognized in the consolidated statements of income:
 
Three months ended March 31
 
2018
 
2017
 
(in thousands)
Compensation expense
$
1,510

 
$
734

Tax benefit
(461
)
 
(744
)
Stock-based compensation expense, net of tax benefit
$
1,049

 
$
(10
)