Acquisitions (Assets Acquired and Liabilities Assumed) (Details) - USD ($) $ in Thousands			9 Months Ended
	Mar. 31, 2023	Aug. 01, 2022	Sep. 28, 2024	Sep. 30, 2023	Mar. 30, 2024	Dec. 30, 2023
Business Acquisition [Line Items]
Goodwill			$ 2,455,948			$ 2,484,502
Less contingent consideration			0			$ 86,495
Cash paid for acquisition, net of cash acquired			$ 116,712	$ 1,093,183
FASA Group
Business Acquisition [Line Items]
Accounts receivable		$ 76,640
Inventories		43,058
Other current assets		33,327
Property, plant and equipment		224,384
Identifiable intangible assets		119,477
Goodwill		301,937
Operating lease right-of-use assets		583
Other assets		62,388
Deferred tax asset		2,315
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		(95,653)
Other noncurrent liabilities		(503)
Non-controlling interests		(21,704)
Purchase price, net of cash acquired		630,432
Less hold-back		21,705
Less contingent consideration		82,984
Cash paid for acquisition, net of cash acquired		$ 525,743
Gelnex
Business Acquisition [Line Items]
Accounts receivable	$ 81,025
Inventories	140,865
Other current assets	3,143
Property, plant and equipment	169,205
Identifiable intangible assets	339,500
Goodwill	542,572
Operating lease right-of-use assets	134
Other assets	2,703
Deferred tax asset	9,067				$ 8,100
Accounts payable	(15,059)
Current operating lease liabilities	(26)
Current portion of long-term debt	(44,692)
Accrued expenses	(18,826)
Long-term debt, net of current portion	(1,407)
Long-term operating lease liabilities	(123)
Deferred tax liability	(12,870)
Other noncurrent liabilities	(19)
Purchase price, net of cash acquired	1,195,192
Less hold-back	104,145
Cash paid for acquisition, net of cash acquired	$ 1,091,047