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CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Loss	Total
Balance at Jan. 03, 2017	$ 947	$ 774,137	$ 1,238,012	$ (1,409,889)		$ 603,207
Balance (in shares) at Jan. 03, 2017	94,672
Increase (Decrease) in Stockholders' Equity
Net income			157,392			157,392
Foreign currency translation adjustment					$ (88)	(88)
Cash dividends declared			(49,738)			(49,738)
Stock-based compensation		16,696				16,696
Common stock issued under stock-based compensation plans	$ 7	9,029				9,036
Common stock issued under stock-based compensation plans (in shares)	740
Treasury stock purchases				(122,975)		(122,975)
Balance at Jan. 02, 2018	$ 954	799,862	1,345,666	(1,532,864)	(88)	613,530
Balance (in shares) at Jan. 02, 2018	95,412
Increase (Decrease) in Stockholders' Equity
Cumulative effect of adopting the pronouncement related to revenue recognition, net of tax			(3,560)			(3,560)
Balance (as adjusted)	$ 954	799,862	1,342,106	(1,532,864)	(88)	609,970
Net income			99,035			99,035
Foreign currency translation adjustment					(850)	(850)
Cash dividends declared			(56,647)			(56,647)
Stock-based compensation	$ 6	20,245				20,251
Stock-based compensation (in shares)	554
Common stock issued under stock-based compensation plans	$ 7	8,569				8,576
Common stock issued under stock-based compensation plans (in shares)	656
Treasury stock purchases				(109,276)		(109,276)
Balance at Jan. 01, 2019	$ 967	828,676	1,384,494	(1,642,140)	(938)	571,059
Balance (in shares) at Jan. 01, 2019	96,622
Increase (Decrease) in Stockholders' Equity
Cumulative effect of adopting the pronouncement related to revenue recognition, net of tax			(41,466)			(41,466)
Balance (as adjusted)	$ 967	828,676	1,343,028	(1,642,140)	(938)	529,593
Net income			127,293			127,293
Foreign currency translation adjustment					503	503
Cash dividends declared			(61,988)			(61,988)
Stock-based compensation	$ 4	19,595				19,599
Stock-based compensation (in shares)	476
Common stock issued under stock-based compensation plans	$ 6	7,718				7,724
Common stock issued under stock-based compensation plans (in shares)	587
Treasury stock purchases				(50,982)		(50,982)
Balance at Dec. 31, 2019	$ 977	$ 855,989	$ 1,408,333	$ (1,693,122)	$ (435)	$ 571,742
Balance (in shares) at Dec. 31, 2019	97,685,000