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Equity (Tables)
9 Months Ended
Sep. 30, 2020
Equity [Abstract]  
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 nine months ended September 30, 2020 and 2019. Class A shares have been excluded as there was no activity during these same periods.
 Three Months EndedNine Months Ended
September 30,September 30,
2020201920202019
Class B Shares
Beginning Balance100,279,043 101,211,023 101,130,379 100,803,382 
Stock Award Activity 22,500 7,500 728,831 528,574 
Purchase of Treasury Stock(866,900)(79,592)(2,424,567)(193,025)
Ending Balance99,434,643 101,138,931 99,434,643 101,138,931 
Treasury Shares
Beginning Balance9,226,413 8,294,433 8,375,077 8,702,074 
Stock Award Activity (22,500)(7,500)(728,831)(528,574)
Purchase of Treasury Stock866,900 79,592 2,424,567 193,025 
Ending Balance10,070,813 8,366,525 10,070,813 8,366,525