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Stockholders' Equity (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Beginning balance $ 289,399 $ 255,970
Net income 12,372 19,361
Acquisition of treasury stock   (12,501)
Restricted stock issuances (2,788) (517)
Amortization of restricted stock 1,957 2,307
Other comprehensive income   40
Ending balance 296,412 260,400
Common Stock    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Common Stock/Class A Common Stock, Dividends declared $ (4,194) $ (3,964)
Cash dividends per share (in dollars per share) $ 0.28 $ 0.25
Class A Common Stock    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Common Stock/Class A Common Stock, Dividends declared $ (334) $ (296)
Cash dividends per share (in dollars per share) $ 0.26 $ 0.23
Common Stock | Common Stock    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Beginning balance $ 30,006 $ 29,907
Restricted stock issuances 116 17
Ending balance 30,122 29,924
Common Stock | Class A Common Stock    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Beginning balance 1,806 1,809
Ending balance 1,806 1,809
Additional Paid-In Capital    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Beginning balance 108,706 102,572
Restricted stock issuances (2,904) (534)
Amortization of restricted stock 1,957 2,307
Ending balance 107,759 104,345
Retained Earnings    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Beginning balance 398,393 342,983
Net income 12,372 19,361
Ending balance 406,237 358,084
Retained Earnings | Common Stock    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Common Stock/Class A Common Stock, Dividends declared (4,194) (3,964)
Retained Earnings | Class A Common Stock    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Common Stock/Class A Common Stock, Dividends declared (334) (296)
Accumulated Other Comprehensive Loss    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Beginning balance (756) (2,293)
Other comprehensive income   40
Ending balance (756) (2,253)
Treasury Stock    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Beginning balance (248,756) (219,008)
Acquisition of treasury stock   (12,501)
Ending balance $ (248,756) $ (231,509)