CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Class B Common Stock	Common Stock Common Stock	Common Stock Class B Common Stock	Additional Paid-in Capital	Retained Earnings	Retained Earnings Common Stock	Retained Earnings Class B Common Stock	Accumulated Other Comprehensive Loss	Treasury Stock, Common Common Stock	Treasury Stock, Common Class B Common Stock
Beginning Balance at Dec. 31, 2021	$ 711,786			$ 10,204	$ 2,860	$ 135,953	$ 724,486			$ (100,463)	$ (60,845)	$ (409)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	192,952						192,952
Other comprehensive income, net of tax	1,629									1,629
Dividends declared, common stock		$ (3,878)	$ (809)					$ (3,878)	$ (809)
Conversion of 1,227,546 shares of Class B Common Stock				(1,227)	1,227
Ending Balance at Jul. 01, 2022	901,680			11,431	1,633	135,953	912,751			(98,834)	(60,845)	(409)
Beginning Balance at Apr. 01, 2022	803,647			11,431	1,633	135,953	815,532			(99,648)	(60,845)	(409)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	99,562						99,562
Other comprehensive income, net of tax	814									814
Dividends declared, common stock		(2,092)	(251)					(2,092)	(251)
Ending Balance at Jul. 01, 2022	901,680			11,431	1,633	135,953	912,751			(98,834)	(60,845)	(409)
Beginning Balance at Dec. 31, 2022	1,115,388			11,431	1,633	135,953	1,112,462			(84,837)	(60,845)	(409)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	240,446						240,446
Other comprehensive income, net of tax	28,561									28,561
Dividends declared, common stock		(4,185)	(502)					(4,185)	(502)
Ending Balance at Jun. 30, 2023	1,379,708			11,431	1,633	135,953	1,348,221			(56,276)	(60,845)	(409)
Beginning Balance at Mar. 31, 2023	1,234,253			11,431	1,633	135,953	1,230,589			(84,099)	(60,845)	(409)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	122,319						122,319
Other comprehensive income, net of tax	27,823									27,823
Dividends declared, common stock		$ (4,185)	$ (502)					$ (4,185)	$ (502)
Ending Balance at Jun. 30, 2023	$ 1,379,708			$ 11,431	$ 1,633	$ 135,953	$ 1,348,221			$ (56,276)	$ (60,845)	$ (409)