Acquisitions - Narrative (Details) $ in Thousands		1 Months Ended			3 Months Ended	9 Months Ended
	Jun. 29, 2024 USD ($)	Jul. 31, 2024 USD ($) employee branch manufacturing_site	Apr. 30, 2024 USD ($) employee facility	Aug. 31, 2023 period	Sep. 28, 2024 USD ($)	Sep. 28, 2024 USD ($)	Sep. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
Business Acquisition [Line Items]
Goodwill					$ 1,619,648	$ 1,619,648		$ 1,681,764
Impact of acquisitions and related measurement period adjustments						309,869
Change in fair value of contingent consideration						4,856	$ 0
Mueller Supply Company, Inc.
Business Acquisition [Line Items]
Purchase price		$ 497,100
Cash payment for acquisition		475,000
Equity investment		11,000			10,600	10,600
Goodwill		137,421
Net deferred tax liability		59,099
Inventories		126,507
Property, plant and equipment		190,383
Trade name and customer relationship intangibles		$ 88,000
Mueller Supply Company, Inc. | Mueller Supply Company, Inc.
Business Acquisition [Line Items]
Number of employees | employee		900
Number of retail branches | branch		38
Number of manufacturing facilities | manufacturing_site		5
BDM Metal Coaters, LLC
Business Acquisition [Line Items]
Percentage of outstanding interests acquired		33.33%
Harvey Building Products Corp
Business Acquisition [Line Items]
Purchase price			$ 460,700
Goodwill			175,871
Net deferred tax liability			59,065
Intangibles adjustment					86,700
Other assets adjustment					21,100
Deferred liabilities adjustment					24,500
Other accounts payable and accrued liabilities adjustment					12,400
Impact of acquisitions and related measurement period adjustments					(96,000)
Inventories			20,251
Property, plant and equipment			47,478
Trade name and customer relationship intangibles			$ 246,000
Harvey Building Products Corp | Harvey Building Products Corp
Business Acquisition [Line Items]
Number of employees | employee			1,200
Number of manufacturing facilities | facility			4
M.A.C. Métal Architectural Inc. And Eastern Architectural Systems
Business Acquisition [Line Items]
Purchase price	$ 235,500
Cash payment for acquisition	217,700
Goodwill	88,400
Net deferred tax liability	12,300
Contingent consideration liability	16,800
Inventories	15,900
Property, plant and equipment	21,300
M.A.C. Métal Architectural Inc. And Eastern Architectural Systems | Customer Lists
Business Acquisition [Line Items]
Trade name and customer relationship intangibles	73,400
M.A.C. Métal Architectural Inc. And Eastern Architectural Systems | Trademarks
Business Acquisition [Line Items]
Trade name and customer relationship intangibles	$ 34,300
M.A.C. Métal
Business Acquisition [Line Items]
Contingent consideration liability					21,800	21,800		$ 16,800
Number of consecutive periods | period				2
Period of contingent consideration payable				12 months
Change in fair value of contingent consideration						5,000
M.A.C. Métal | Other Current Liabilities
Business Acquisition [Line Items]
Contingent consideration liability					9,600	9,600
M.A.C. Métal | Other Long-Term Liabilities
Business Acquisition [Line Items]
Contingent consideration liability					$ 12,300	$ 12,300