CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2023	Jun. 25, 2022	Jul. 01, 2023	Jun. 25, 2022
Statement of Comprehensive Income [Abstract]
Consolidated net income	$ 179,551	$ 207,524	$ 354,644	$ 366,772
Other comprehensive income (loss), net of tax:
Foreign currency translation	7,725	(17,120)	17,976	(15,907)
Net change with respect to derivative instruments and hedging activities, net of tax of $775, $3,450, $503, and $2,846	(2,679)	(11,886)	(1,725)	(9,795)
Net change in pension and postretirement obligation adjustments, net of tax of $1, $31, $12, and $(103)	9	(299)	1	121
Attributable to unconsolidated affiliates, net of tax of $(103), $(656), $(476), and $(1,280)	353	2,261	1,638	4,409
Total other comprehensive income (loss), net	5,408	(27,044)	17,890	(21,172)
Consolidated comprehensive income	184,959	180,480	372,534	345,600
Comprehensive (income) loss attributable to noncontrolling interests	(1,546)	584	(3,658)	(315)
Comprehensive income attributable to Mueller Industries, Inc.	$ 183,413	$ 181,064	$ 368,876	$ 345,285