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Stockholders' Equity (Tables)
 12 Months Ended
Dec. 31, 2019
Stockholders' Equity.  
Summary of share repurchase activity

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Year ended December 31, 

 

Cumulative

 

    

2019

    

2018

 

2017

 

total (1)

 

 

(in thousands)

Shares of common stock repurchased

 

 

51

 

 

260

 

 

505

 

 

816

Cost of shares of common stock repurchased

 

$

1,056

 

$

5,293

 

$

8,599

 

$

14,948

(1)

Amounts represent the total shares common stock repurchased under the stock repurchase program through December 31, 2019.