Accumulated Other Comprehensive Loss - Summary of Impact of Accumulated Other Comprehensive Income (Loss) on Income Statement (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2016	Sep. 27, 2015	Oct. 02, 2016	Sep. 27, 2015
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Cost of sales	$ 521,838	$ 380,270	$ 1,424,073	$ 1,026,516
Selling, delivery and administrative expenses	287,389	210,851	783,857	577,323
Subtotal pre-tax	(38,674)	(39,658)	(52,525)	(90,607)
Income tax expense	13,121	12,099	18,681	31,174
Total after tax effect	(23,142)	(25,553)	(28,753)	(54,711)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Cost of sales	37	71	110	213
Selling, delivery and administrative expenses	462	610	1,386	1,826
Subtotal pre-tax	499	681	1,496	2,039
Income tax expense	192	259	577	784
Total after tax effect	307	422	919	1,255
Reclassification out of Accumulated Other Comprehensive Income [Member] | Foreign Currency Translation Adjustment [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Selling, delivery and administrative expenses	4		11	(6)
Subtotal pre-tax	4		11	(6)
Income tax expense	1	(1)	4	(3)
Total after tax effect	3	1	7	(3)
Net Pension Activity [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Cost of sales	75	88	224	265
Selling, delivery and administrative expenses	673	716	2,019	2,148
Subtotal pre-tax	748	804	2,243	2,413
Income tax expense	289	307	865	928
Total after tax effect	459	497	1,378	1,485
Net Postretirement Benefits Activity [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Cost of sales	(38)	(17)	(114)	(52)
Selling, delivery and administrative expenses	(215)	(106)	(644)	(316)
Subtotal pre-tax	(253)	(123)	(758)	(368)
Income tax expense	(98)	(47)	(292)	(141)
Total after tax effect	$ (155)	$ (76)	$ (466)	$ (227)