CONSOLIDATED STATEMENTS OF EARNINGS - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2017	Dec. 30, 2016	Dec. 25, 2015
Income Statement [Abstract]
Net Sales	$ 1,474,744	$ 1,329,293	$ 1,286,485
Cost of products sold	681,695	621,054	601,785
Gross Profit	793,049	708,239	684,700
Product development	60,106	60,606	58,559
Selling, marketing and distribution	233,462	215,253	201,855
General and administrative	139,034	126,481	122,161
Impairment	0	192,020	0
Operating Earnings	360,447	113,879	302,125
Interest expense	16,202	17,590	17,643
Held separate investment (income), net	0	0	(191,635)
Other expense (income), net	(2,849)	(366)	1,404
Earnings Before Income Taxes	347,094	96,655	474,713
Income taxes	94,682	55,981	129,000
Net Earnings	$ 252,412	$ 40,674	$ 345,713
Basic Net Earnings per Common Share	$ 1.50	$ 0.24	$ 2.00
Diluted Net Earnings per Common Share	1.45	0.24	1.95
Cash Dividends Declared per Common Share	$ 0.49	$ 0.45	$ 0.41