Note K - Equity-based Compensation - Summary of Stock-settled Stock Appreciation Right Activity (Details) - Stock Appreciation Rights (SARs) [Member] - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		12 Months Ended
		Jan. 02, 2021	Dec. 28, 2019
Outstanding, shares (in shares)		1,129
Outstanding, weighted-average exercise price (in dollars per share)		$ 70.00
Outstanding, weighted-average remaining contractual term (Year)		2 years	1 year 1 month 6 days
Outstanding, aggregate intrinsic value	[1]	$ 5,434	$ 13,091
Granted, shares (in shares)		111
Granted, weighted-average exercise price (in dollars per share)		$ 63.02
Exercised, shares (in shares)		(681)
Exercised, weighted-average exercise price (in dollars per share)		$ 69.24
Forfeited, shares (in shares)		0
Forfeited, weighted-average exercise price (in dollars per share)		$ 0
Expired, shares (in shares)		(115)
Expired, weighted-average exercise price (in dollars per share)		$ 70.75
Outstanding, shares (in shares)		444	1,129
Outstanding, weighted-average exercise price (in dollars per share)		$ 69.25	$ 70.00
Exercisable, shares (in shares)		170
Exercisable, weighted-average exercise price (in dollars per share)		$ 67.16
Exercisable, weighted-average remaining contractual term (Year)		1 year 3 months 18 days
Exercisable, aggregate intrinsic value		$ 2,177

[1] Aggregate intrinsic value is defined as the difference between the current market value at the reporting date (the closing price of the Company’s common stock on the last trading day of the period) and the exercise price of awards that were in-the-money. The closing price of the Company’s common stock at January 2, 2021, and December 28, 2019, was $80.00 and $114.96, respectively.