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Common Stock and Treasury Stock - (Narrative) (Details) $ / shares in Units, $ in Millions |  |  |  |  |  |  |  |  | 3 Months Ended | 9 Months Ended |
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Sep. 27, 2023 $ / shares | May 09, 2023 $ / shares | Mar. 01, 2023 $ / shares | Dec. 07, 2022 $ / shares | Sep. 20, 2022 $ / shares | Aug. 19, 2022 item director shares | Jun. 06, 2022 $ / shares | Mar. 01, 2022 $ / shares | Sep. 30, 2023 USD ($) director $ / shares shares | Sep. 30, 2022 $ / shares shares | Sep. 30, 2023 USD ($) item director $ / shares shares | Sep. 30, 2022 $ / shares shares | Dec. 31, 2022 director
Common Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends declared per share |  |  |  |  |  |  |  |  | $ 0.25 | $ 2.25 | $ 0.75 | $ 2.61 |
Cash dividend paid |  |  |  |  |  |  |  |  |  |  | $ 0 |  |
Number of board of directors | director |  |  |  |  |  |  |  |  | 8 |  | 8 |  | 8
Former Shareholder |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of voting interest held |  |  |  |  |  | 65.00% |  |  |  |  |  |  |
Number of votes per share of common stock | item |  |  |  |  |  | 10 |  |  |  |  |  |  |
Dividends declared per share |  |  |  |  |  |  |  |  |  |  | $ 0 |  |
Class A Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of votes per share of common stock | item |  |  |  |  |  |  |  |  |  |  | 1 |  |
Dividends declared per share | $ 0.25 | $ 0.25 | $ 0.25 | $ 0.25 | $ 0.25 |  | $ 0.20 | $ 0.16 |  |  |  |  |
Percentage of directors to be elected |  |  |  |  |  |  |  |  |  |  | 25.00% |  |
Class A Common Stock | Former Shareholder |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of directors elected | director |  |  |  |  |  | 2 |  |  |  |  |  |  |
Estate owns Percentage |  |  |  |  |  | 16.00% |  |  |  |  |  |  |
Class A Common Stock | Stock Buy-Back Program |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Share repurchase program, authorized amount | $ |  |  |  |  |  |  |  |  | $ 75.8 |  | $ 75.8 |  |
Stock repurchase program, remaining authorization amount | $ |  |  |  |  |  |  |  |  | $ 18.2 |  | $ 18.2 |  |
Stock repurchased during period shares | shares |  |  |  |  |  |  |  |  | 0 | 0 | 0 | 0 |
Class B Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of votes per share of common stock | item |  |  |  |  |  |  |  |  |  |  | 10 |  |
Dividends declared per share |  |  |  |  |  |  | $ 0.20 | $ 0.16 |  |  |  |  |
Class B Common Stock | Former Shareholder |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of votes per share of common stock | item |  |  |  |  |  | 1 |  |  |  |  |  |  |
Common stock shares issued | shares |  |  |  |  |  | 0 |  |  |  |  |  |  |

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