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Stock Based Compensation (Tables)
 12 Months Ended
Dec. 31, 2017
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Summary of Stock Option Activity

The following is a summary of stock option activity for the year ended December 31, 2017:

 

 

 

 

 

 

Weighted

 

 

 

 

 

 

 

 

 

 

 

Average

 

 

Aggregate

 

 

 

 

 

 

 

Exercise

 

 

Intrinsic Value

 

 

 

Shares

 

 

Price

 

 

(in thousands)

 

Options outstanding at the beginning of the year

 

 

13,378

 

 

$

4.93

 

 

$

—

 

Options granted

 

 

—

 

 

 

—

 

 

 

 

 

Options exercised

 

 

—

 

 

 

—

 

 

 

 

 

Forfeitures

 

 

—

 

 

 

—

 

 

 

 

 

Options outstanding at the end of the year

 

 

13,378

 

 

$

4.93

 

 

$

3,972

 

Options exercisable at the end of the year

 

 

13,378

 

 

$

4.93

 

 

$

3,972