Benefit Plans - Components of Net Periodic Benefit Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2023	Dec. 31, 2022	Dec. 25, 2021
Components of net periodic benefit cost (income) [Abstract]
Net periodic benefit income	$ (765)	$ (3,168)	$ (1,903)
Pension Benefits
Components of net periodic benefit cost (income) [Abstract]
Interest cost	2,454	1,450	1,272
Expected return on plan assets	(3,260)	(3,568)	(3,671)
Amortization of net loss (gain)	0	897	1,536
Settlement charge	0	0	0
Service cost	0	0
Net periodic benefit income	(806)	(1,221)	(863)
Other Benefits
Components of net periodic benefit cost (income) [Abstract]
Interest cost	439	346	281
Amortization of net loss (gain)	(449)	(220)	(103)
Service cost	183	291	258
Amortization of prior service credit	(2)	(198)	(470)
Curtailment gain	0	(1,756)	0
Net periodic benefit income	$ 171	$ (1,537)	$ (34)