Accumulated Other Comprehensive Income (Loss) - Summary of Impact of Accumulated Other Comprehensive Income (Loss) on Income Statement (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 30, 2018	Sep. 30, 2018	Jul. 01, 2018	Apr. 01, 2018	Dec. 31, 2017	Oct. 01, 2017	Jul. 02, 2017	Apr. 02, 2017	Dec. 30, 2018	Dec. 31, 2017	Jan. 01, 2017
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Cost of sales									$ 3,069,652	$ 2,782,721	$ 1,940,706
SD&A expenses									1,497,810	1,403,320	1,058,240
Subtotal pre-tax									13,287	(63,006)	(92,712)
Income tax expense									(1,869)	39,841	(36,049)
Total after tax effect	$ 26,976	$ (25,164)	$ 3,933	$ 14,185	$ (77,922)	$ (17,316)	$ (6,348)	$ 5,051	19,930	(96,535)	(50,146)
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Cost of sales									893	368	157
SD&A expenses									2,984	3,062	1,717
Subtotal pre-tax									3,877	3,430	1,874
Income tax expense									955	1,151	722
Total after tax effect									2,922	2,279	1,152
Reclassification out of Accumulated Other Comprehensive Income [Member] | Foreign Currency Translation Adjustment [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
SD&A expenses									(19)	40	(11)
Subtotal pre-tax									(19)	40	(11)
Income tax expense									(5)	15	(5)
Total after tax effect									(14)	25	(6)
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									886	377	331
SD&A expenses									2,968	3,053	2,728
Subtotal pre-tax									3,854	3,430	3,059
Income tax expense									950	1,186	1,179
Total after tax effect									2,904	2,244	1,880
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									7	(9)	(174)
SD&A expenses									35	(31)	(1,000)
Subtotal pre-tax									42	(40)	(1,174)
Income tax expense									10	(50)	(452)
Total after tax effect									$ 32	$ 10	$ (722)