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Stock-Based Compensation (Tables)
 6 Months Ended
Jun. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Changes in Capital Surplus
Changes in "Capital surplus" are primarily a result of stock compensation:
 
Quarter Ended June 30,
 
Six Months Ended June 30,
(In thousands)
2014
 
2013
 
2014
 
2013
Stock-based compensation
$
1,820

 
$
1,876

 
$
3,676

 
$
3,828

Shares withheld for taxes
(30
)
 
(2
)
 
(257
)
 
(332
)
Capital surplus increase
$
1,790

 
$
1,874

 
$
3,419

 
$
3,496