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Equity (Tables)
9 Months Ended
Sep. 30, 2015
Equity [Abstract]  
Treasury Stock
The following table shows the number of shares withheld for taxes and the associated value of those shares for the nine-month periods ended September 30, 2015 and 2014. These shares were accounted for as treasury stock when withheld and then immediately retired.
 
Nine Months Ended September 30,
 
2015
 
2014
 
(In thousands)
Number of shares withheld for taxes
1,699

 
1,004

Value of shares withheld for taxes
$
2,347

 
$
6,281