Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 30, 2017	Sep. 30, 2017	Jul. 01, 2017	Apr. 01, 2017	Dec. 31, 2016	Oct. 01, 2016	Jul. 02, 2016	Apr. 02, 2016	Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
Income Statement [Abstract]
Net sales	$ 1,645,175	$ 1,799,270	$ 1,646,610	$ 1,380,355	$ 1,575,309	$ 1,761,019	$ 1,472,731	$ 1,219,140	$ 6,471,410	$ 6,028,199	$ 5,731,549
Cost of sales									3,980,859	3,752,151	3,595,217
Gross profit	626,661	678,457	645,902	539,531	612,135	649,366	557,291	457,256	2,490,551	2,276,048	2,136,332
Selling, general and administrative expenses									1,739,631	1,500,399	1,541,214
Change in fair value of contingent consideration liability									27,852	0	0
Operating profit									723,068	775,649	595,118
Other expenses									11,363	51,758	3,210
Interest expense, net									174,435	152,692	118,035
Income from continuing operations before income tax expense									537,270	571,199	473,873
Income tax expense									473,279	34,272	45,018
Income from continuing operations	(384,611)	203,356	172,164	73,082	155,725	172,790	128,143	80,269	63,991	536,927	428,855
Income (loss) from discontinued operations, net of tax	0	0	368	(2,465)	1,387	1,068	0	0	(2,097)	2,455	0
Income from continuing operations	$ (384,611)	$ 203,356	$ 172,532	$ 70,617	$ 157,112	$ 173,858	$ 128,143	$ 80,269	$ 61,894	$ 539,382	$ 428,855
Earnings (loss) per share — basic:
Continuing operations	$ (1.06)	$ 0.56	$ 0.47	$ 0.20	$ 0.41	$ 0.46	$ 0.34	$ 0.21	$ 0.17	$ 1.41	$ 1.07
Discontinued operations	0.00	0.00	0.00	(0.01)	0.00	0.00	0.00	0.00	(0.01)	0.01	0.00
Net income									0.17	1.41	1.07
Earnings (loss) per share — diluted:
Continuing operations	(1.06)	0.55	0.47	0.19	0.41	0.45	0.34	0.21	0.17	1.40	1.06
Discontinued operations	$ 0.00	$ 0.00	$ 0.00	$ (0.01)	$ 0.00	$ 0.00	$ 0.00	$ 0.00	(0.01)	0.01	0.00
Net income									$ 0.17	$ 1.40	$ 1.06