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Net Income (Loss) Per Share (Tables)
12 Months Ended
Dec. 31, 2019
Earnings Per Share [Abstract]  
Calculations of Net Income (Loss) Per Share
The calculations of net income (loss) per share were: 
 
Year Ended December 31,
 
2019
 
2018
 
 
(In thousands, except per share data)
Basic:
 
 
 
 
Net income (loss)
$
54,561

 
$
(15,629
)
 
Weighted average common shares outstanding
20,636

 
20,544

 
Net income (loss) per share
$
2.64

 
$
(0.76
)
 
Diluted:
 
 
 
 
Net income (loss)
$
54,561

 
$
(15,629
)
 
Weighted average common shares outstanding
20,636

 
20,544

 
Net income (loss) per share
$
2.64

 
$
(0.76
)