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Equity - Activity for Class B Common Stock and Treasury Stock (Details) - shares
 3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Beginning Balance (in shares) 9,986,317 17,441,863 10,229,521 16,094,488
Stock Award Activity (in shares) (7,200) (12,050) (382,996) (1,704,592)
Purchase of Treasury Stock (in shares) 1,236,199 2,877,691 1,368,791 5,917,608
Ending Balance (in shares) 11,215,316 20,307,504 11,215,316 20,307,504
Class B Shares        
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Beginning Balance (in shares) 89,519,139 92,063,593 89,275,935 93,410,968
Stock Award Activity (in shares) 7,200 12,050 382,996 1,704,592
Purchase of Treasury Stock (in shares) (1,236,199) (2,877,691) (1,368,791) (5,917,608)
Ending Balance (in shares) 88,290,140 89,197,952 88,290,140 89,197,952
Purchase of Treasury Stock (in shares)     1,400,000