Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 27, 2024	Jun. 29, 2023	Jun. 27, 2024	Jun. 29, 2023
Statement of Comprehensive Income [Abstract]
Net earnings (loss)	$ (20,221)	$ 13,466	$ (32,087)	$ 4,000
Other comprehensive loss, net of tax:
Amortization of the net actuarial loss and prior service credit related to the pension, net of tax benefit of $5, $4, $9 and $9, respectively	(11)	(12)	(23)	(23)
Fair market value adjustment of interest rate swap, net of tax benefit of $8	0	0	0	(22)
Reclassification adjustment on interest rate swap included in interest expense, net of tax benefit of $20	0	0	0	(58)
Other comprehensive loss	(11)	(12)	(23)	(103)
Comprehensive income (loss)	$ (20,232)	$ 13,454	$ (32,110)	$ 3,897