Summary of Results of Operations for Business Segments (Details) - USD ($) $ in Thousands		3 Months Ended			6 Months Ended
		Jul. 03, 2021	Jun. 27, 2020		Jul. 03, 2021		Jun. 27, 2020		Jan. 02, 2021
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		$ 808,773	$ 471,977		$ 1,566,831		$ 1,149,436
Income from operations	[1]	136,717	39,118		257,890	[2]	144,532	[2]
Depreciation		10,167	9,468		20,304		18,698
Amortization of Intangible Assets and Debt Issuance Costs		19,443	18,143		39,738		35,512
Capital Expenditures Net		10,586	13,531		19,311		22,712
Total assets		5,422,783	5,414,701		5,422,783		5,414,701		$ 5,202,474
Commercial Foodservice Equipment Group
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		508,778	267,500		989,933		710,624
Income from operations	[1]	109,944	26,974		206,260	[2],[3]	115,581	[2]
Depreciation		5,993	5,307		11,786		10,207
Amortization of Intangible Assets and Debt Issuance Costs		14,246	12,894		29,450		25,334
Capital Expenditures Net		6,013	12,187		11,208		16,873
Total assets		3,326,410	3,149,853		3,326,410		3,149,853
Food Processing Group
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		130,008	101,563		242,502		205,829
Income from operations	[1]	26,961	19,583		46,623	[2]	34,941	[2]
Depreciation		1,337	1,363		2,652		2,699
Amortization of Intangible Assets and Debt Issuance Costs		1,834	2,000		3,677		3,700
Capital Expenditures Net		1,505	594		2,433		2,423
Total assets		631,845	617,638		631,845		617,638
Residential Kitchen
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		169,987	102,914		334,396		232,983
Income from operations	[1]	33,910	6,526		63,766	[2]	19,234	[2]
Depreciation		2,738	2,794		5,512		5,777
Amortization of Intangible Assets and Debt Issuance Costs		1,784	2,737		3,556		5,457
Capital Expenditures Net		2,873	750		5,129		3,295
Total assets		1,243,477	1,119,685		1,243,477		1,119,685
Corporate and Other
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		0	0		0		0
Income from operations	[1],[4]	(34,098)	(13,965)		(58,759)	[2]	(25,224)	[2]
Depreciation	[4]	99	4		354		15
Amortization of Intangible Assets and Debt Issuance Costs	[4]	1,579	512		3,055	[5]	1,021	[5]
Capital Expenditures Net		195	0	[4]	541	[4]	121	[4]
Total assets	[4]	$ 221,051	$ 527,525		$ 221,051		$ 527,525

[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 (loss) on sale of plants are included in Commercial Foodservice and Residential Kitchen.

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

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