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Common Stock (Narrative) (Details) | 12 Months Ended
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Dec. 31, 2021 item shares | Dec. 31, 2020 item
Class A Common Stock |  |
Number of votes per share of common stock | 1 | 1
Class B Common Stock |  |
Number of votes per share of common stock | 10 | 10
Number of shares issued upon conversion into Class A Common Stock | shares | 1 |

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- Definition Number of votes per share. + References No definition available. + Details
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- Details
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- Details
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