Income (Loss) Per Share (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Oct. 01, 2017	Jul. 02, 2017	Apr. 02, 2017	Jan. 01, 2017	Oct. 02, 2016	Jul. 03, 2016	Apr. 03, 2016	Dec. 31, 2017	Jan. 01, 2017	Jan. 03, 2016
Earnings Per Share [Abstract]
Income from continuing operations									$ 194,029	$ 129,624	$ 139,979
Net income (loss) from discontinued operations									0	0	21,163
Net income	$ 159,276	$ 14,257	$ (1,845)	$ 22,341	$ 28,891	$ 48,890	$ 26,480	$ 25,363	$ 194,029	$ 129,624	$ 161,142
Common Stock:
Weighted average basic shares outstanding									244,179	262,209	323,018
Dilutive effect of stock options and restricted shares									8,110	4,503	5,707
Weighted average diluted shares outstanding									252,289	266,712	328,725
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount									1,168	1,558	2,323