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
	Oct. 01, 2017	Oct. 02, 2016	Oct. 01, 2017	Oct. 02, 2016
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Cost of sales	$ 752,202	$ 521,838	$ 2,039,996	$ 1,424,073
Selling, delivery and administrative expenses	374,194	287,389	1,060,472	783,857
Subtotal pre-tax	30,659	38,674	33,875	52,525
Income tax expense	11,748	13,121	11,800	18,681
Total after tax effect	17,316	23,142	18,613	28,753
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Cost of sales	150	37	433	110
Selling, delivery and administrative expenses	578	462	1,752	1,386
Subtotal pre-tax	728	499	2,185	1,496
Income tax expense	281	192	842	577
Total after tax effect	447	307	1,343	919
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	11	4	37	11
Subtotal pre-tax	11	4	37	11
Income tax expense	4	1	14	4
Total after tax effect	7	3	23	7
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	171	75	497	224
Selling, delivery and administrative expenses	643	673	1,945	2,019
Subtotal pre-tax	814	748	2,442	2,243
Income tax expense	314	289	942	865
Total after tax effect	500	459	1,500	1,378
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	(21)	(38)	(64)	(114)
Selling, delivery and administrative expenses	(76)	(215)	(230)	(644)
Subtotal pre-tax	(97)	(253)	(294)	(758)
Income tax expense	(37)	(98)	(114)	(292)
Total after tax effect	$ (60)	$ (155)	$ (180)	$ (466)