Accumulated Other Comprehensive Income (Loss) - Summary of Impact of Accumulated Other Comprehensive Income (Loss) on Statement of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2020	Sep. 29, 2019	Sep. 27, 2020	Sep. 29, 2019
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of sales	$ 856,046	$ 838,805	$ 2,421,686	$ 2,390,289
Selling, delivery and administrative expenses	368,594	378,378	1,087,251	1,116,097
Subtotal pre-tax	(73,417)	(22,170)	(152,179)	(37,625)
Income tax expense	18,363	6,624	38,911	10,801
Total after tax effect	(51,884)	(13,006)	(106,115)	(21,545)
Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of sales	418	198	1,217	594
Selling, delivery and administrative expenses	1,281	61	1,704	1,220
Subtotal pre-tax	1,699	259	2,921	1,814
Income tax expense	419	63	720	447
Total after tax effect	1,280	196	2,201	1,367
Reclassification out of Accumulated Other Comprehensive Income | Interest Rate Swap
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of sales	0	0	0	0
Selling, delivery and administrative expenses	402	(496)	(942)	(496)
Subtotal pre-tax	402	(496)	(942)	(496)
Income tax expense	99	(122)	(232)	(122)
Total after tax effect	303	(374)	(710)	(374)
Reclassification out of Accumulated Other Comprehensive Income | Foreign Currency Translation Adjustment
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of sales	0	0	0	0
Selling, delivery and administrative expenses	15	(23)	18	(26)
Subtotal pre-tax	15	(23)	18	(26)
Income tax expense	4	(6)	5	(5)
Total after tax effect	11	(17)	13	(21)
Reclassification out of Accumulated Other Comprehensive Income | Net Pension Activity | Defined Benefit Plans
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of sales	363	265	1,057	794
Selling, delivery and administrative expenses	831	641	2,525	1,925
Subtotal pre-tax	1,194	906	3,582	2,719
Income tax expense	294	223	882	669
Total after tax effect	900	683	2,700	2,050
Reclassification out of Accumulated Other Comprehensive Income | Net Postretirement Benefits Activity | Defined Benefit Plans
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of sales	55	(67)	160	(200)
Selling, delivery and administrative expenses	33	(61)	103	(183)
Subtotal pre-tax	88	(128)	263	(383)
Income tax expense	22	(32)	65	(95)
Total after tax effect	$ 66	$ (96)	$ 198	$ (288)