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Equity (Tables) | 9 Months Ended
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Sep. 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 nine months ended September 30, 2021 and 2020. Class A shares have been excluded as there was no activity during these same periods.
|  | Three Months Ended |  | Nine Months Ended
|  | September 30, |  | September 30,
|  | 2021 |  | 2020 |  | 2021 |  | 2020
Class B Shares |  |  |  |  |  |  |  |
Beginning Balance |  | 97,558,017 |  |  | 100,279,043 |  |  | 99,331,443 |  |  | 101,130,379 |
Stock Award Activity |  | 10,000 |  |  | 22,500 |  |  | 734,674 |  |  | 728,831 |
Purchase of Treasury Stock |  | (593,619) |  |  | (866,900) |  |  | (3,091,719) |  |  | (2,424,567) |
Ending Balance |  | 96,974,398 |  |  | 99,434,643 |  |  | 96,974,398 |  |  | 99,434,643 |
Treasury Shares |  |  |  |  |  |  |  |
Beginning Balance |  | 11,947,439 |  |  | 9,226,413 |  |  | 10,174,013 |  |  | 8,375,077 |
Stock Award Activity |  | (10,000) |  |  | (22,500) |  |  | (734,674) |  |  | (728,831) |
Purchase of Treasury Stock |  | 593,619 |  |  | 866,900 |  |  | 3,091,719 |  |  | 2,424,567 |
Ending Balance |  | 12,531,058 |  |  | 10,070,813 |  |  | 12,531,058 |  |  | 10,070,813 |

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- Definition Tabular disclosure of changes in the separate accounts comprising stockholders' equity (in addition to retained earnings) and of the changes in the number of shares of equity securities during at least the most recent annual fiscal period and any subsequent interim period presented is required to make the financial statements sufficiently informative if both financial position and results of operations are presented. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21463-112644 + Details
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