Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 09, 2021	Oct. 03, 2020	Oct. 09, 2021	Oct. 03, 2020
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 38,852	$ 44,347	$ 166,865	$ 96,494
Pension and postretirement plans:
Settlement and curtailment (gain) loss		(5,365)		81,500
Net loss for the period		5,365		21,058
Amortization of prior service cost included in net income	9	9	31	73
Amortization of actuarial loss included in net income	92	43	307	1,039
Pension and postretirement plans, net of tax	101	52	338	103,670
Derivative instruments:
Net change in fair value of derivatives	(3,618)	9,409	(3,215)	2,202
(Gain) loss reclassified to net income	(426)	677	(800)	1,752
Derivative instruments, net of tax	(4,044)	10,086	(4,015)	3,954
Other comprehensive (loss) income, net of tax	(3,943)	10,138	(3,677)	107,624
Comprehensive income	$ 34,909	$ 54,485	$ 163,188	$ 204,118