LEASES - Cash and Non-cash Lease Activities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 27, 2023	Dec. 28, 2022	Dec. 29, 2021
Lessee, Lease, Description [Line Items]
Operating cash flows used for operating leases	$ 28,156	$ 28,174	$ 27,498
Financing cash flows used for finance leases	158	162	148
Operating lease ROU assets	21,502	13,070	17,763
Finance lease ROU assets	135	28	196
Derecognition of ROU assets due to terminations, impairment or modifications	(44)	(74)	(4,612)
Property Lease
Lessee, Lease, Description [Line Items]
Operating cash flows used for operating leases	27,835	27,221	26,414
Financing cash flows used for finance leases	93	106	102
Operating lease ROU assets	21,448	12,978	17,763
Finance lease ROU assets	0	0	0
Derecognition of ROU assets due to terminations, impairment or modifications	$ (40)	$ (39)	$ (4,513)
Weighted-average remaining years in lease term-finance leases	16 years 10 months 13 days	17 years 10 months 13 days	18 years 5 months 1 day
Weighted-average remaining years in lease term-operating leases	10 years 5 months 1 day	10 years 8 months 23 days	11 years 3 months 7 days
Weighted-average discount rate-finance leases	2.57%	2.57%	2.78%
Weighted-average discount rate-operating leases	5.00%	4.54%	4.45%
Equipment Lease
Lessee, Lease, Description [Line Items]
Operating cash flows used for operating leases	$ 321	$ 953	$ 1,084
Financing cash flows used for finance leases	65	56	46
Operating lease ROU assets	54	92
Finance lease ROU assets	135	28	196
Derecognition of ROU assets due to terminations, impairment or modifications	$ (4)	$ (35)	$ (99)
Weighted-average remaining years in lease term-finance leases	3 years 1 month 24 days	3 years 2 months 8 days	4 years 7 days
Weighted-average remaining years in lease term-operating leases	3 years 3 months 29 days	1 year 8 months 23 days	1 year 5 months 8 days
Weighted-average discount rate-finance leases	5.68%	1.53%	1.54%
Weighted-average discount rate-operating leases	4.52%	3.80%	3.89%