LEASES - Cash and Non-cash Lease Activities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 25, 2024	Dec. 27, 2023
Lessee, Lease, Description [Line Items]
Operating cash flows used for operating leases	$ 29,353	$ 28,686	$ 28,156
Financing cash flows used for finance leases	223	207	158
Operating lease ROU assets	17,467	21,798	21,502
Finance lease ROU assets		148	135
Derecognition of ROU assets due to terminations, impairment or modifications			(44)
Property Leases
Lessee, Lease, Description [Line Items]
Operating cash flows used for operating leases	28,982	28,376	27,835
Financing cash flows used for finance leases	95	93	93
Operating lease ROU assets	$ 17,464	$ 20,504	21,448
Derecognition of ROU assets due to terminations, impairment or modifications			$ (40)
Weighted-average remaining years in lease term-finance leases	14 years 10 months 9 days	15 years 10 months 17 days	16 years 10 months 13 days
Weighted-average remaining years in lease term-operating leases	9 years 7 months 13 days	10 years 1 month 17 days	10 years 5 months 1 day
Weighted-average discount rate-finance leases	2.57%	2.57%	2.57%
Weighted-average discount rate-operating leases	5.36%	5.31%	5.00%
Equipment Leases
Lessee, Lease, Description [Line Items]
Operating cash flows used for operating leases	$ 371	$ 310	$ 321
Financing cash flows used for finance leases	128	114	65
Operating lease ROU assets	3	1,294	54
Finance lease ROU assets	0	$ 148	135
Derecognition of ROU assets due to terminations, impairment or modifications	$ 0		$ (4)
Weighted-average remaining years in lease term-finance leases	2 years 8 months 8 days	3 years 2 months 26 days	3 years 1 month 24 days
Weighted-average remaining years in lease term-operating leases	2 years 9 months 14 days	3 years 9 months 10 days	3 years 3 months 29 days
Weighted-average discount rate-finance leases	6.27%	6.49%	5.68%
Weighted-average discount rate-operating leases	6.42%	6.73%	4.52%