Acquisitions (Assets Acquired and Liabilities Assumed) (Details) - USD ($) $ in Thousands				3 Months Ended
	Mar. 31, 2023	Aug. 01, 2022	May 02, 2022	Apr. 01, 2023	Apr. 02, 2022	Dec. 31, 2022
Business Acquisition [Line Items]
Goodwill				$ 2,587,587		$ 1,970,377
Long-term contingent consideration				176,482		$ 169,903
Cash paid for acquisition, net of cash acquired				$ 1,079,083	$ 59,003
FASA Group
Business Acquisition [Line Items]
Accounts receivable		$ 76,640
Inventories		43,058
Other current assets		33,327
Property, plant and equipment		223,329
Identifiable intangible assets		122,267
Goodwill		377,789
Operating lease right-of-use assets		583
Other assets		62,865
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets		8,144
Accounts payable		(15,920)
Current portion of long-term debt		(18,680)
Accrued expenses		(38,708)
Long-term debt, net of current portion		(41,926)
Long-term operating lease liabilities		(583)
Deferred tax liability		(96,405)
Other noncurrent liabilities		(503)
Non-controlling interests		(19,701)
Purchase price, net of cash acquired		715,576
Less hold-back		21,705
Long-term contingent consideration		168,128
Cash paid for acquisition, net of cash acquired		$ 525,743
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		11 years 4 months 24 days
FASA Group | Collection Routes [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles		$ 111,500
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		12 years
Valley Proteins
Business Acquisition [Line Items]
Accounts receivable			$ 68,558
Inventories			58,246
Other current assets			13,825
Property, plant and equipment			409,405
Identifiable intangible assets			389,200
Goodwill			358,298
Operating lease right-of-use assets			16,380
Other assets			14,164
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets			1,075
Accounts payable			(47,615)
Current portion of long-term debt			(2,043)
Current operating lease liabilities			(4,779)
Accrued expenses			(66,034)
Long-term debt, net of current portion			(5,995)
Long-term operating lease liabilities			(11,601)
Other noncurrent liabilities			(19,436)
Purchase price, net of cash acquired			$ 1,171,648
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			15 years
Valley Proteins | Collection Routes [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles			$ 292,100
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			15 years
Gelnex
Business Acquisition [Line Items]
Accounts receivable	$ 66,395
Inventories	141,066
Other current assets	18,107
Property, plant and equipment	127,769
Identifiable intangible assets	283,951
Goodwill	626,202
Operating lease right-of-use assets	134
Other assets	2,703
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets	775
Accounts payable	(15,059)
Current portion of long-term debt	(44,692)
Current operating lease liabilities	(26)
Accrued expenses	(18,584)
Long-term debt, net of current portion	(1,407)
Long-term operating lease liabilities	(123)
Deferred tax liability	(4,065)
Other noncurrent liabilities	(19)
Purchase price, net of cash acquired	1,183,127
Less hold-back	104,145
Cash paid for acquisition, net of cash acquired	$ 1,078,982