CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated other comprehensive loss	Treasury Stock	Noncontrolling Interest
Balance at beginning of period at Dec. 26, 2020		$ 802	$ 280,051	$ 1,019,694	$ (54,883)	$ (468,919)	$ 24,315
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Acquisition (issuance) of shares under incentive stock option plans			728			(484)
Stock-based compensation expense			7,228
Issuance of restricted stock			(4,722)			4,722
Net income attributable to Mueller Industries, Inc.	$ 342,919			342,919
Dividends paid or payable to stockholders of Mueller Industries, Inc.				(22,276)
Total other comprehensive (loss) income attributable to Mueller Industries, Inc.	1,298				2,728
Repurchase of common stock						(26)
Purchase of Mueller Middle East							0
Dividends paid to noncontrolling interests							(9,722)
Net income attributable to noncontrolling interests	(5,507)						5,507
Foreign currency translation	(667)						(1,430)
Balance at end of period at Sep. 25, 2021		802	283,285	1,340,337	(52,155)	(464,707)	18,670
Balance at beginning of period at Jun. 26, 2021		802	285,148	1,176,812	(48,262)	(468,784)	28,200
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Acquisition (issuance) of shares under incentive stock option plans			163			(360)
Stock-based compensation expense			2,411
Issuance of restricted stock			(4,437)			4,437
Net income attributable to Mueller Industries, Inc.	170,980			170,980
Dividends paid or payable to stockholders of Mueller Industries, Inc.				(7,455)
Total other comprehensive (loss) income attributable to Mueller Industries, Inc.	(4,977)				(3,893)
Repurchase of common stock						0
Purchase of Mueller Middle East							0
Dividends paid to noncontrolling interests							(9,722)
Net income attributable to noncontrolling interests	(1,276)						1,276
Foreign currency translation	(8,569)						(1,084)
Balance at end of period at Sep. 25, 2021		802	283,285	1,340,337	(52,155)	(464,707)	18,670
Balance at beginning of period at Dec. 25, 2021	1,256,963	802	286,208	1,458,489	(53,347)	(470,034)	34,845
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Acquisition (issuance) of shares under incentive stock option plans			853			(2,472)
Stock-based compensation expense			12,254
Issuance of restricted stock			(4,913)			4,913
Net income attributable to Mueller Industries, Inc.	519,410			519,410
Dividends paid or payable to stockholders of Mueller Industries, Inc.				(42,762)
Total other comprehensive (loss) income attributable to Mueller Industries, Inc.	(49,113)				(46,105)
Repurchase of common stock						(38,054)
Purchase of Mueller Middle East							(5,605)
Dividends paid to noncontrolling interests							0
Net income attributable to noncontrolling interests	(3,175)						3,175
Foreign currency translation	(44,086)						(3,008)
Balance at end of period at Sep. 24, 2022	1,654,649	802	294,402	1,935,137	(99,452)	(505,647)	29,407
Balance at beginning of period at Jun. 25, 2022		802	291,228	1,794,811	(72,930)	(503,448)	35,160
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Acquisition (issuance) of shares under incentive stock option plans			560			(2,083)
Stock-based compensation expense			7,083
Issuance of restricted stock			(4,469)			4,469
Net income attributable to Mueller Industries, Inc.	154,542			154,542
Dividends paid or payable to stockholders of Mueller Industries, Inc.				(14,216)
Total other comprehensive (loss) income attributable to Mueller Industries, Inc.	(27,941)				(26,522)
Repurchase of common stock						(4,585)
Purchase of Mueller Middle East							(5,605)
Dividends paid to noncontrolling interests							0
Net income attributable to noncontrolling interests	(1,271)						1,271
Foreign currency translation	(28,179)						(1,419)
Balance at end of period at Sep. 24, 2022	$ 1,654,649	$ 802	$ 294,402	$ 1,935,137	$ (99,452)	$ (505,647)	$ 29,407