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Earnings (Loss) per Share (Tables)
 12 Months Ended
Dec. 31, 2018
Earnings Per Share [Abstract]  
Summary of Calculation of Basic and Diluted Earnings (Loss) Per Share

A summary of the calculation of basic and diluted earnings (loss) per share for the years ended December 31, 2018, 2017 and 2016 is as follows:

 

(In thousands, except for per share amounts)

 

2018

 

 

2017

 

 

2016

 

Numerator

 

 

 

 

 

 

 

 

 

 

 

 

Net Income (Loss)

 

$

(19,342

)

 

$

23,840

 

 

$

35,229

 

Denominator

 

 

 

 

 

 

 

 

 

 

 

 

Weighted average number of shares – basic

 

 

47,880

 

 

 

48,153

 

 

 

48,724

 

Effect of dilutive securities:

 

 

 

 

 

 

 

 

 

 

 

 

Stock options

 

 

—

 

 

 

406

 

 

 

170

 

Restricted stock and restricted stock units

 

 

—

 

 

 

140

 

 

 

55

 

Weighted average number of shares – diluted

 

$

47,880

 

 

$

48,699

 

 

$

48,949

 

Earnings (loss)  per share – basic

 

$

(0.40

)

 

$

0.50

 

 

$

0.72

 

Earnings (loss) per share – diluted

 

$

(0.40

)

 

$

0.49

 

 

$

0.72