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Equity (Tables)
6 Months Ended
Jun. 30, 2021
Equity [Abstract]  
Schedule of Activity for Class B Common Stock and Treasury Stock
The following table presents the activity for the Class B common stock and Treasury stock for the three and six months ended June 30, 2021 and 2020. Class A shares have been excluded as there was no activity during these same periods.
 Three Months EndedSix Months Ended
June 30,June 30,
2021202020212020
Class B Shares
Beginning Balance98,539,367 101,065,709 99,331,443 101,130,379 
Stock Award Activity 11,750 56,750 724,674 706,331 
Purchase of Treasury Stock(993,100)(843,416)(2,498,100)(1,557,667)
Ending Balance97,558,017 100,279,043 97,558,017 100,279,043 
Treasury Shares
Beginning Balance10,966,089 8,439,747 10,174,013 8,375,077 
Stock Award Activity (11,750)(56,750)(724,674)(706,331)
Purchase of Treasury Stock993,100 843,416 2,498,100 1,557,667 
Ending Balance11,947,439 9,226,413 11,947,439 9,226,413