Summary of Results of Operations for Business Segments (Details) - USD ($) $ in Thousands		3 Months Ended
		Apr. 03, 2021		Mar. 28, 2020	Jan. 02, 2021
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		$ 758,058		$ 677,459
Income from operations	[1],[2]	121,173		105,414
Depreciation		10,137		9,230
Amortization of Intangible Assets and Debt Issuance Costs		20,295		17,369
Capital Expenditures Net		8,725		9,181
Total assets		5,289,913		5,277,979	$ 5,202,474
Commercial Foodservice Equipment Group
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		481,155		443,124
Income from operations	[1],[2]	96,316	[3]	88,607
Depreciation		5,793		4,900
Amortization of Intangible Assets and Debt Issuance Costs		15,204		12,440
Capital Expenditures Net		5,195		4,686
Total assets		3,283,354		3,232,632
Food Processing Group
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		112,494		104,266
Income from operations	[1],[2]	19,662		15,358
Depreciation		1,315		1,336
Amortization of Intangible Assets and Debt Issuance Costs		1,843		1,700
Capital Expenditures Net		928		1,829
Total assets		632,746		626,907
Residential Kitchen
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		164,409		130,069
Income from operations	[1],[2]	29,856		12,708
Depreciation		2,774		2,983
Amortization of Intangible Assets and Debt Issuance Costs		1,772		2,720
Capital Expenditures Net		2,256		2,545
Total assets		1,213,045		1,145,943
Corporate and Other
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		0		0
Income from operations	[1],[2],[4]	(24,661)		(11,259)
Depreciation	[4]	255		11
Amortization of Intangible Assets and Debt Issuance Costs	[4],[5]	1,476		509
Capital Expenditures Net	[4]	346		121
Total assets	[4]	$ 160,768		$ 272,497

[1] Non-operating expenses are not allocated to the operating segments. Non-operating expenses consist of interest expense and deferred financing amortization, foreign exchange gains and losses and other income and expense items outside of income from operations.

[2] Restructuring expenses are allocated in operating income by segment. See note 16 for further details.

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

[4] Includes corporate and other general company assets and operations.

[5] Includes amortization of deferred financing costs and Convertible Notes issuance costs