Net Income Per Share (Details) $ / shares in Units, $ in Thousands		3 Months Ended		9 Months Ended
	Mar. 17, 2022 shares	Sep. 30, 2022 USD ($) $ / shares shares	Oct. 01, 2021 USD ($) $ / shares shares	Sep. 30, 2022 USD ($) $ / shares shares	Oct. 01, 2021 USD ($) $ / shares shares
Numerator for basic and diluted net income per Common Stock and Class B Common Stock share:
Net income		$ 118,761	$ 68,930	$ 311,713	$ 170,473
Less dividends:
Total undistributed earnings – basic		116,418	66,587	304,683	163,443
Total undistributed earnings – diluted		116,418	66,587	$ 304,683	$ 163,443
Diluted net income per share:
Percentage undistributed earnings allocated to common stock diluted				100.00%	100.00%
Anti-dilutive shares | shares				0	0
Common Stock
Less dividends:
Common Stock		2,092	1,785	$ 5,970	$ 5,356
Total undistributed earnings – basic		103,937	50,731	261,064	124,522
Total undistributed earnings – diluted		103,583	50,536	260,065	123,993
Numerator for basic net income per Common Stock share:
Numerator for basic net income per Common Stock share		106,029	52,516	267,034	129,878
Numerator for diluted net income per Common Stock share:
Numerator for diluted net income per Common Stock share		$ 118,761	$ 68,930	$ 311,713	$ 170,473
Denominator for basic net income per Common Stock and Class B Common Stock share:
Common Stock weighted average shares outstanding - basic (in shares) | shares		8,369,000	7,141,000	8,032,000	7,141,000
Denominator for diluted net income per Common Stock and Class B Common Stock share:
Common Stock weighted average shares outstanding - diluted (assuming conversion of Class B Common Stock to Common Stock) (in shares) | shares		9,406,000	9,409,000	9,410,000	9,413,000
Basic net income per share:
Common Stock (in dollars per share) | $ / shares		$ 12.67	$ 7.36	$ 33.25	$ 18.19
Diluted net income per share:
Common Stock (in dollars per share) | $ / shares		$ 12.63	$ 7.32	$ 33.13	$ 18.11
Class B Common Stock
Less dividends:
Common Stock		$ 251	$ 558	$ 1,060	$ 1,674
Total undistributed earnings – basic		12,481	15,856	43,619	38,921
Total undistributed earnings – diluted		12,835	16,051	44,618	39,450
Numerator for basic net income per Common Stock share:
Numerator for basic net income per Common Stock share		12,732	16,414	44,679	40,595
Numerator for diluted net income per Common Stock share:
Numerator for diluted net income per Common Stock share		$ 13,086	$ 16,609	$ 45,678	$ 41,124
Denominator for basic net income per Common Stock and Class B Common Stock share:
Common Stock weighted average shares outstanding - basic (in shares) | shares		1,005,000	2,232,000	1,342,000	2,232,000
Denominator for diluted net income per Common Stock and Class B Common Stock share:
Common Stock weighted average shares outstanding - diluted (assuming conversion of Class B Common Stock to Common Stock) (in shares) | shares		1,037,000	2,268,000	1,378,000	2,272,000
Basic net income per share:
Common Stock (in dollars per share) | $ / shares		$ 12.67	$ 7.36	$ 33.29	$ 18.19
Diluted net income per share:
Common Stock (in dollars per share) | $ / shares		$ 12.62	$ 7.31	$ 33.15	$ 18.10
Shares converted (in shares) | shares				1,227,546
Class B Common Stock | Converting Stockholders
Diluted net income per share:
Shares converted (in shares) | shares	1,227,546
Conversion ratio	1