SHAREHOLDERS' EQUITY (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 26, 2022	Jun. 27, 2021	Jun. 26, 2022	Jun. 27, 2021	Dec. 26, 2021
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (in shares)			34,861
Ending balance (in shares)	32,684		32,684
Beginning balance			$ 493,067
Net income	$ 24,013	$ 15,884	34,532	$ 22,782
Change in accounting standard cumulative-effect adjustment	483,296		483,296		$ 508,813
Foreign currency translation adjustment	(1,724)	(6)	(1,597)	490
Ending balance, net of tax	$ 465,953	$ 465,230	$ 465,953	$ 465,230
Common stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (in shares)	33,608	35,474	34,861	35,493
Purchases and retirement of common stock (in shares)	907	0	2,234	0
Net issuances under equity plans, including tax benefits (in shares)	(17)	6	57	(17)
Stock-based compensation (in shares)	0	30	0	34
Ending balance (in shares)	32,684	35,510	32,684	35,510
Beginning balance	$ 1	$ 1	$ 1	$ 1
Ending balance, net of tax	1	1	1	1
Retained earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	483,170	459,958	508,813	452,017
Net income	24,013	15,884	34,532	22,782
Purchases and retirement of common stock	(24,613)	0	(60,939)	0
Net issuance under equity plans, including tax benefits	51	152	(3,597)	(2,148)
Stock-based compensation	675	3,573	4,487	6,916
Ending balance, net of tax	483,296	479,567	483,296	479,567
Accumulated other comprehensive loss
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(15,620)	(14,332)	(15,747)	(14,828)
Foreign currency translation adjustment	(1,724)	(6)	(1,597)	490
Ending balance, net of tax	$ (17,344)	$ (14,338)	$ (17,344)	$ (14,338)