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Stock-Based Compensation
3 Months Ended
Mar. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
STOCK-BASED COMPENSATION PLANS
STOCK-BASED COMPENSATION
The Company has stock incentive plans for executives and eligible employees. Stock awards include stock options, restricted stock, and performance shares. Stock-based compensation expense for the three months ended March 31, 2015 and 2014 was $2.2 million and $2.6 million, respectively. At March 31, 2015, there was $7.0 million of unrecognized stock-based compensation cost expected to be recognized over a period of 1.5 years. During the three months ended March 31, 2015, the supplemental incentive accrual increased $0.4 million to $1.0 million.
    
The following options and stock appreciation rights were exercisable during the three months ended March 31, 2015:
Award Type
 
Number of 
Exercised Units
 
Weighted Average
Exercised Price
 
Number of Exercisable Units
 
Weighted Average
Exercisable Price
Options
 

 
$

 
308,727

 
$
19.69

Stock Appreciation Rights
 

 
$

 
46,572

 
$
14.06