Net Income Per Share - Summary of Computation of Basic Net Income Per Share and Diluted Net Income Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 29, 2024	Mar. 31, 2023
Numerator for basic and diluted net income per Common Stock and Class B Common Stock share:
Net income	$ 165,741	$ 118,127
Less dividends:
Total undistributed earnings – basic	11,075	85,319
Total undistributed earnings – diluted	$ 11,075	$ 85,319
Diluted net income per share:
Percentage undistributed earnings allocated to common stock diluted (as a percent)	100.00%	100.00%
Anti-dilutive shares (in shares)	0	0
Common Stock
Less dividends:
Common Stock	$ 138,088	$ 29,291
Total undistributed earnings – basic	9,888	76,172
Total undistributed earnings – diluted	9,874	76,002
Numerator for basic net income per Common Stock share:
Numerator for basic net income per Common Stock share	147,976	105,463
Numerator for diluted net income per Common Stock share:
Numerator for diluted net income per Common Stock share	$ 165,741	$ 118,127
Denominator for basic net income per Common Stock and Class B Common Stock share:
Common Stock weighted average shares outstanding - basic (in shares)	8,369,000	8,369,000
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)	9,387,000	9,395,000
Basic net income per share:
Common Stock (in dollars per share)	$ 17.68	$ 12.60
Diluted net income per share:
Common Stock (in dollars per share)	$ 17.66	$ 12.57
Class B Common Stock
Less dividends:
Common Stock	$ 16,578	$ 3,517
Total undistributed earnings – basic	1,187	9,147
Total undistributed earnings – diluted	1,201	9,317
Numerator for basic net income per Common Stock share:
Numerator for basic net income per Common Stock share	17,765	12,664
Numerator for diluted net income per Common Stock share:
Numerator for diluted net income per Common Stock share	$ 17,779	$ 12,834
Denominator for basic net income per Common Stock and Class B Common Stock share:
Common Stock weighted average shares outstanding - basic (in shares)	1,005,000	1,005,000
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)	1,018,000	1,026,000
Basic net income per share:
Common Stock (in dollars per share)	$ 17.68	$ 12.60
Diluted net income per share:
Common Stock (in dollars per share)	$ 17.46	$ 12.51