Quarterly Data (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended																12 Months Ended
	Dec. 29, 2018		Sep. 29, 2018		Jun. 30, 2018		Mar. 31, 2018		Dec. 30, 2017		Sep. 30, 2017		Jul. 01, 2017		Apr. 01, 2017		Dec. 29, 2018		Dec. 30, 2017		Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 756,672		$ 713,331		$ 668,128		$ 584,800		$ 632,859		$ 593,043		$ 579,343		$ 530,297		$ 2,722,931		$ 2,335,542		$ 2,267,852
Gross Profit	280,588		261,160		250,759		211,633		240,164		228,519		234,608		209,450		1,004,140		912,741		901,180
Income from operations	139,987		107,677		111,310		86,992		62,904		109,444		113,524		92,741		445,966	[1]	378,613	[1],[2],[3]	419,018	[1]
Net earnings	$ 94,839		$ 72,905		$ 83,988		$ 65,420		$ 75,186		$ 74,671		$ 77,569		$ 70,702		$ 317,152		$ 298,128		$ 284,216
Basic earnings per share (usd per share)	$ 1.71	[4]	$ 1.31	[4]	$ 1.51	[4]	$ 1.18	[4]	$ 1.35	[4]	$ 1.31	[4]	$ 1.35	[4]	$ 1.24	[4]	$ 5.71		$ 5.26	[4]	$ 4.98
Diluted earnings per share (usd per share)	$ 1.70	[4]	$ 1.31	[4]	$ 1.51	[4]	$ 1.18	[4]	$ 1.35	[4]	$ 1.31	[4]	$ 1.35	[4]	$ 1.24	[4]	$ 5.70	[4]	$ 5.26	[4]	$ 4.98

[1] Restructuring expenses are included in operating income of the segment to which they pertain. See note 13 for further details.

[2] Gain on sale of plant is included in Commercial Foodservice.

[3] Impairment of intangible assets is included in Residential Kitchen.

[4] Sum of quarters may not equal the total for the year due to changes in the number of shares outstanding during the year.