CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2024	Dec. 30, 2023	Dec. 31, 2022
Statement of Comprehensive Income [Abstract]
Consolidated net income	$ 617,542	$ 609,649	$ 662,820
Other comprehensive (loss) income, net of tax:
Foreign currency translation	(30,541)	21,943	(30,382)
Net change with respect to derivative instruments and hedging activities, net of tax of $117, $373, and $(200)	(404)	(1,273)	683
Net change in pension and postretirement obligation adjustments, net of tax of $1,235, $1,308, and $(4,381)	(3,652)	(3,852)	12,722
Attributable to unconsolidated affiliates, net of tax of $334, $(266), and $(784)	(1,152)	917	2,702
Total other comprehensive (loss) income, net	(35,749)	17,735	(14,275)
Consolidated comprehensive income	581,793	627,384	648,545
Comprehensive income attributable to noncontrolling interests	(9,972)	(7,533)	(1,057)
Comprehensive income attributable to Mueller Industries, Inc.	$ 571,821	$ 619,851	$ 647,488