Quarterly Financial Information (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 30, 2023	Sep. 30, 2023	Jul. 01, 2023	Apr. 01, 2023	Dec. 31, 2022	Sep. 24, 2022	Jun. 25, 2022	Mar. 26, 2022	Dec. 30, 2023	Dec. 31, 2022	Dec. 25, 2021
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 732,377	$ 819,792	$ 896,984	$ 971,192	$ 877,581	$ 944,830	$ 1,150,042	$ 1,010,002	$ 3,420,345	$ 3,982,455	$ 3,769,345
Gross profit	195,994	240,734	257,712	292,394	256,781	266,193	329,128	265,491
Consolidated net income	119,296	135,709	179,551	175,093	140,235	155,813	207,524	159,248	609,649	662,820	475,124
Net income attributable to Mueller Industries, Inc.	$ 119,238	$ 132,709	$ 177,711	$ 173,239	$ 138,906	$ 154,542	$ 206,552	$ 158,316	$ 602,897	$ 658,316	$ 468,520
Basic earnings per share (in dollars per share)	$ 1.07	$ 1.19	$ 1.60	$ 1.56	$ 1.25	$ 1.39	$ 1.85	$ 1.41	$ 5.41	$ 5.90	$ 4.18
Diluted earnings per share (in dollars per share)	1.05	1.17	1.56	1.54	1.23	1.37	1.83	1.39	5.30	5.82	4.12
Dividends per share (in dollars per share)	$ 0.15	$ 0.15	$ 0.15	$ 0.15	$ 0.125	$ 0.125	$ 0.125	$ 0.125	$ 0.60	$ 0.50	$ 0.26