Common Stock and Treasury Stock - (Narrative) (Details) $ / shares in Units, $ in Millions									3 Months Ended		9 Months Ended
	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