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Share-Based Compensation (Tables)
 3 Months Ended
Mar. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Summary of Share-Based Compensation Expense
The following table summarizes our share-based compensation expense recognized for the periods presented:
 
Three Months Ended
 
March 31,
 
2016
 
2015
Equity-classified awards:
 
 
 
Stock option awards
$
(303
)
 
$
393

Common, deferred and restricted stock and stock unit awards
(299
)
 
597

 
(602
)
 
990

Liability-classified awards
(7
)
 
379

 
$
(609
)
 
$
1,369