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Stockholders' Equity - Changes in Number of Shares of Class A Stock Outstanding (Details) - Class A Stock - shares | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Change In Common Stock Outstanding [Roll Forward] |  |  |  |
Class A Stock outstanding, beginning of period | 10,975,723 | 12,156,174 | 10,868,556 | 12,447,036
Issued pursuant to share-based compensation plans | 4,987 | 0 | 207,209 | 86,451
Repurchased and canceled pursuant to the stock buy-back | (96,135) | (885,230) | (191,190) | (1,262,543)
Class A Stock outstanding, end of period | 10,884,575 | 11,270,944 | 10,884,575 | 11,270,944

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