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Capital Stock
 12 Months Ended
Dec. 31, 2022
Capital Stock [Abstract]  
Capital Stock
8.
Capital Stock

The Company’s authorized capital stock consists of 25 million shares of preferred stock, par value $0.001 per share, 500 million shares of Class A common stock, par value $0.001 per share, and 100 million shares of Class B common stock, par value $0.001 per share. As of December 31, 2022 and 2021, there were no preferred or Class B common shares outstanding. Each share of Class A common stock entitles the holder to one vote on matters submitted to a vote of the Company’s stockholders. Stock dividends of Class A common stock may be paid only to holders of Class A common stock. Class A common stock has no conversion rights.
Weighted-average common shares outstanding

The following is a reconciliation of the weighted-average common shares outstanding for purposes of computing basic and diluted net income per share (in thousands):

 
Year Ended December 31,
  
   
2022
    
2021
    
2020
  
Basic weighted-average common shares outstanding
    
50,002
      
50,193
      
52,296
  
Effect of dilutive securities:                        
Stock awards and options
     523       1,234       469  
Diluted weighted-average common shares outstanding
    
50,525
      
51,427
      
52,765
  

For the years ended December 31, 2022, 2021 and 2020, other stock options totaling 0.1 million, 0.1 million and 0.4 million, respectively, were excluded from the calculation of diluted earnings per share because they were anti-dilutive.
Dividends

Quarterly cash dividends for the years ended December 31, 2022 and 2021 totaled $77.0 million and $76.3 million or $0.385 per share in all quarters of 2022 and $0.38 for all quarters of 2021. The board of directors has declared a quarterly cash dividend of $0.39 per share of Class A common stock to be paid on March 8, 2023 to stockholders of record on February 27, 2023.

Repurchases of common stock
In July 2018, the Company’s board of directors approved a stock repurchase plan with an authorization amount of $500 million. The repurchases are used primarily for strategic initiatives and to offset dilution from the Company’s equity incentive plans. During the years ended December 31, 2022, 2021 and 2020, the Company purchased 1.7 million, 1.6 million and 5.1 million shares under the 2018 plan for $70.0 million, $80.4 million and $144.3 million, respectively. At December 31, 2022, $175.4 million was available for repurchases under the 2018 stock repurchase plan.