Annual report pursuant to Section 13 and 15(d)

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDER'S EQUITY

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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDER'S EQUITY - USD ($)
$ in Thousands
Total
Class A Common Stock
Class B Common Stock
Common​ Stock
Common​ Stock
Class A Common Stock
Common​ Stock
Class B Common Stock
Additional Paid-In Capital
Retained Earnings
Non-controlling Interests
Beginning balance (in shares) at Dec. 31, 2019       928 0 0      
Beginning balance at Dec. 31, 2019 $ 406,031     $ 93 $ 0 $ 0 $ 21,992 $ 383,946  
Common stock dividends (37,166)             (37,166)  
Effect of reorganization transactions (in shares)       (928)          
Effect of reorganization transactions       $ (93)     93    
Issuance of common stock (in shares)         14,766,709 45,233,291      
Issuance of common stock         $ 148 $ 452 (600)    
Conversion of Class B common stock (in shares)         4,900,272 (4,900,272)      
Conversion of Class B common stock         $ 49 $ (49)      
Offering costs (4,495)           (4,495)    
Stock-based compensation 1,045           1,045    
Net income 370,577             370,577  
Ending balance (in shares) at Dec. 31, 2020   19,666,981 40,333,019 0 19,666,981 40,333,019      
Ending balance at Dec. 31, 2020 735,992     $ 0 $ 197 $ 403 18,035 717,357 $ 0
Common stock dividends (121,057)             (121,057)  
Dividend equivalents on unvested restricted stock units, net of forfeitures             2,879 (2,879)  
Issuance of Class A shares for acquisition of RMS (in shares)         996,644        
Issuance of Class A shares for acquisition of RMS 15,289       $ 10   15,279    
Vesting of restricted stock units (in shares)         60,287        
Stock-based compensation 5,982           5,982    
Non-controlling interest contributions 25               25
Net income 283,782             283,773 9
Ending balance (in shares) at Dec. 31, 2021   20,723,912 40,333,019 0 20,723,912 40,333,019      
Ending balance at Dec. 31, 2021 $ 920,013     $ 0 $ 207 $ 403 $ 42,175 $ 877,194 $ 34