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Stock-Based Compensation Plans (Tables)
 3 Months Ended
Mar. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan
The following table summarizes the stock-based compensation expense recognized, by award type, and the compensation expense (benefit) recognized for phantom stock unit awards during the three months ended March 31, 2020 and 2019 (amounts in thousands):
 
Three months ended March 31,
 
2020
 
2019
Stock option awards
$
9

 
$
51

Restricted stock awards
133

 
114

Restricted stock unit awards
186

 
702

 
$
328

 
$
867

Phantom stock unit awards
$
(3
)
 
$
848