CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 28, 2025	Jun. 29, 2024	Jun. 28, 2025	Jun. 29, 2024
Statement of Comprehensive Income [Abstract]
Consolidated net income	$ 248,483	$ 163,447	$ 407,770	$ 305,156
Other comprehensive income (loss), net of tax:
Foreign currency translation	24,100	(7,871)	27,019	(12,026)
Net change with respect to derivative instruments and hedging activities, net of tax of $384, $214, $(210), and $121	(1,331)	(746)	715	(419)
Net change in pension and postretirement obligation adjustments, net of tax of $114, $38, $(708), and $21	(286)	(93)	2,209	(57)
Attributable to unconsolidated affiliates, net of tax of $(604), $65, $213, and $460	2,081	(221)	(733)	(1,583)
Total other comprehensive income (loss), net	24,564	(8,931)	29,210	(14,085)
Consolidated comprehensive income	273,047	154,516	436,980	291,071
Comprehensive income attributable to noncontrolling interests	(3,401)	(2,759)	(4,460)	(5,484)
Comprehensive income attributable to Mueller Industries, Inc.	$ 269,646	$ 151,757	$ 432,520	$ 285,587