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Accumulated Other Comprehensive Income or Loss - Schedule Of Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jan. 02, 2021	Dec. 28, 2019	Dec. 29, 2018
Accumulated Other Comprehensive Income Loss [Line Items]
Balance, value	$ 687,538	$ 715,947	$ 721,950
Other comprehensive (loss) income before reclassifications	(1,086)	219	(2,026)
Income tax benefit (expense)	268	(55)	458
Other comprehensive (loss) income, net of tax, before reclassifications	(818)	164	(1,568)
Amortization of amounts included in net periodic benefit cost	191	18,480	1,204
Income tax expense	(49)	(4,485)	(259)
Amounts reclassified out of AOCI, net of tax	142	13,995	945
Total other comprehensive (loss) income, after tax	(676)	14,159	(623)
Balance, value	735,049	687,538	715,947
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Balance, value	(1,600)	(15,759)	(15,136)
Total other comprehensive (loss) income, after tax	(676)	14,159	(623)
Balance, value	$ (2,276)	$ (1,600)	$ (15,759)

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