Acquisitions - Narrative (Details) $ in Thousands	1 Months Ended					3 Months Ended		9 Months Ended
	Sep. 27, 2025 USD ($) employee manufacturing_site	Jul. 31, 2025 USD ($)	Jul. 31, 2024 USD ($) employee branch manufacturing_site	Apr. 30, 2024 USD ($) employee facility	Aug. 31, 2023 USD ($) period	Sep. 27, 2025 USD ($) employee	Sep. 28, 2024 USD ($)	Sep. 27, 2025 USD ($) employee	Sep. 28, 2024 USD ($)	Dec. 31, 2024 USD ($)
Business Combination [Line Items]
Bargain purchase gain						$ 47,840	$ 0	$ 47,840	$ 0
Decrease in goodwill								(2,003)
Goodwill	$ 737,936					737,936		737,936		$ 1,105,732
Contingent consideration liability	9,786					9,786		9,786		21,122
Increase (decrease) change in fair value of contingent consideration								(619)	4,856
Payment of contingent consideration								11,488	$ 0
Metal Sales Manufacturing Corporation
Business Combination [Line Items]
Net purchase price	181,816
Cash payment for acquisition	200,000
Bargain purchase gain	47,840							47,800
Deferred income tax liabilities	$ 15,711					$ 15,711		$ 15,711
Metal Sales Manufacturing Corporation | Metal Sales Manufacturing Corporation
Business Combination [Line Items]
Number of employees | employee	900					900		900
Number of manufacturing facilities | manufacturing_site	21
Cold Rolled Steel, LLC
Business Combination [Line Items]
Net purchase price		$ 6,400
Cash payment for acquisition		$ 6,500
Mueller Supply Company, Inc.
Business Combination [Line Items]
Net purchase price			$ 495,900
Cash payment for acquisition			475,000
Lease right-of-use assets						$ 8,000
Increase in lease liabilities						8,000
Decrease in goodwill						200
Decrease in accounts payable and other liabilities assumed						2,000
Increase in deferred income tax liabilities						1,800
Equity investment	$ 11,700		11,000			11,700		$ 11,700		11,100
Goodwill			107,665
Deferred income tax liabilities			$ 69,709
Mueller Supply Company, Inc. | Mueller Supply Company, Inc.
Business Combination [Line Items]
Number of employees | employee			900
Number of manufacturing facilities | manufacturing_site			5
Number of retail branches | branch			38
BDM Metal Coaters, LLC
Business Combination [Line Items]
Percentage of outstanding interests acquired			33.33%
Harvey Building Products Corp
Business Combination [Line Items]
Net purchase price				$ 460,700
Goodwill				174,002
Deferred income tax liabilities				$ 49,251
Harvey Building Products Corp | Harvey Building Products Corp
Business Combination [Line Items]
Number of employees | employee				1,200
Number of manufacturing facilities | facility				4
M.A.C. Métal
Business Combination [Line Items]
Contingent consideration liability	$ 9,800				$ 16,800	9,800		9,800		$ 21,100
Number of consecutive periods | period					2
Period of contingent consideration payable					12 months
Increase (decrease) change in fair value of contingent consideration						$ (500)		200
Payment of contingent consideration								$ 11,500