Acquisitions and Dispositions - Narrative (Details) - USD ($) $ in Thousands							3 Months Ended	12 Months Ended
	Dec. 07, 2021	Sep. 02, 2021	Jul. 28, 2021	Jan. 29, 2021	Aug. 03, 2020	Jan. 17, 2020	Sep. 25, 2021	Dec. 31, 2022	Dec. 25, 2021	Dec. 26, 2020	Oct. 25, 2021
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Copper Bar
Business Acquisition [Line Items]
Consideration for sale of businesses											$ 10,100
Gain (loss) on disposal of businesses									$ 6,500
Assets											$ 3,600
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Die-Mold
Business Acquisition [Line Items]
Consideration for sale of businesses		$ 22,800
Gain (loss) on disposal of businesses		$ 4,700
Net sales of disposed of business									10,900	$ 13,500
Net income of disposed business									2,200	2,300
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Fabricated Tube Products and Shoals Tubular, Inc.
Business Acquisition [Line Items]
Consideration for sale of businesses			$ 75,700
Gain (loss) on disposal of businesses			46,600
Net sales of disposed of business									37,000	51,500
Net income of disposed business									5,500	$ 6,400
Assets			32,700
Carrying value of the liabilities disposed			$ 3,600
Mueller Middle East
Business Acquisition [Line Items]
Ownership interest acquired (as a percent)	55.00%
Total consideration paid	$ 20,017
Cash paid for acquisition	15,800
Debt assumed	2,600
Payment for contingent consideration liability	1,000
Equity interest issued or issuable	$ 700
Asset acquisition, revenue from acquiree									$ 48,200
Decrease in goodwill								$ (11,200)
Decrease in the noncontrolling interest								(5,600)
Increase in property, plant, and equipment								4,200
Decrease in liabilities								(900)
Increase in intangible assets								$ 500
Hart & Cooley Flexible Duct Business
Business Acquisition [Line Items]
Total consideration paid				$ 15,300
Cash paid for acquisition				$ 14,000
Payment for contingent consideration liability							$ 1,300
Kessler
Business Acquisition [Line Items]
Total consideration paid					$ 57,233
Shoals
Business Acquisition [Line Items]
Total consideration paid						$ 15,321
Retail Distribution Business
Business Acquisition [Line Items]
Ownership interest acquired (as a percent)		17.00%							17.00%
Mueller Middle East
Business Acquisition [Line Items]
Interest in the joint venture, ownership percentage	15.00%
Mueller Middle East | Joint Venture
Business Acquisition [Line Items]
Interest in the joint venture, ownership percentage	40.00%