v3.26.3
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. 28, 2024   $ 1,604 $ 330,532 $ 3,107,838 $ (80,279) $ (586,530) $ 31,243
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Issuance of shares under two-for-one stock split   0 0        
Exercise of stock options, net of shares withheld     590        
Stock-based compensation expense     20,328        
Issuance of restricted stock     (10,042)     (32,142)  
Transactions with noncontrolling interests     0       600
Net income attributable to Mueller Industries, Inc. $ 611,479     611,479      
Dividends paid or payable to stockholders of Mueller Industries, Inc.       (83,701)      
Total other comprehensive income (loss) attributable to Mueller Industries, Inc. 21,313       21,804    
Issuance of shares under incentive stock plans           12,065  
Repurchase of common stock           (243,615)  
Shares withheld for stock option exercises and employee taxes     (10,042)     (32,142)  
Net income attributable to noncontrolling interests (6,539)           6,539
Foreign currency translation 20,318           (491)
Dividends paid to noncontrolling interests             (12,240)
Balance at end of period at Sep. 27, 2025   1,604 341,408 3,635,616 (58,475) (850,222) 25,651
Balance at beginning of period at Jun. 28, 2025   1,604 344,906 3,455,935 (51,115) (834,770) 24,063
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Exercise of stock options, net of shares withheld     (95)        
Stock-based compensation expense     6,388        
Issuance of restricted stock     (9,791)     (25,959)  
Transactions with noncontrolling interests             0
Net income attributable to Mueller Industries, Inc. 208,123     208,123      
Dividends paid or payable to stockholders of Mueller Industries, Inc.       (28,442)      
Total other comprehensive income (loss) attributable to Mueller Industries, Inc. (7,897)       (7,360)    
Issuance of shares under incentive stock plans           10,507  
Repurchase of common stock           0  
Shares withheld for stock option exercises and employee taxes     (9,791)     (25,959)  
Net income attributable to noncontrolling interests (2,125)           2,125
Foreign currency translation (6,701)           (537)
Dividends paid to noncontrolling interests             0
Balance at end of period at Sep. 27, 2025   1,604 341,408 3,635,616 (58,475) (850,222) 25,651
Balance at beginning of period at Dec. 27, 2025 3,235,906 1,604 345,033 3,761,575 (50,835) (847,411) 25,940
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Issuance of shares under two-for-one stock split   1,604 (1,604)        
Exercise of stock options, net of shares withheld     201        
Stock-based compensation expense     23,307        
Issuance of restricted stock     (4,622)     (26,280)  
Transactions with noncontrolling interests     420       2,680
Net income attributable to Mueller Industries, Inc. 709,873     709,873      
Dividends paid or payable to stockholders of Mueller Industries, Inc.       (115,669)      
Total other comprehensive income (loss) attributable to Mueller Industries, Inc. (9,695)       (9,695)    
Issuance of shares under incentive stock plans           5,820  
Repurchase of common stock           (281,870)  
Shares withheld for stock option exercises and employee taxes     (4,622)     (26,280)  
Net income attributable to noncontrolling interests (6,120)           6,120
Foreign currency translation (7,933)           1,178
Dividends paid to noncontrolling interests             (5,051)
Balance at end of period at Sep. 26, 2026 3,542,318 3,208 362,735 4,355,779 (60,530) (1,149,741) 30,867
Balance at beginning of period at Jun. 27, 2026   1,604 360,901 4,172,858 (63,664) (923,949) 26,266
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Issuance of shares under two-for-one stock split   1,604 (1,604)        
Exercise of stock options, net of shares withheld     234        
Stock-based compensation expense     7,461        
Issuance of restricted stock     (4,257)     (24,697)  
Transactions with noncontrolling interests             0
Net income attributable to Mueller Industries, Inc. 221,200     221,200      
Dividends paid or payable to stockholders of Mueller Industries, Inc.       (38,279)      
Total other comprehensive income (loss) attributable to Mueller Industries, Inc. 3,134       3,134    
Issuance of shares under incentive stock plans           4,336  
Repurchase of common stock           (205,431)  
Shares withheld for stock option exercises and employee taxes     (4,257)     (24,697)  
Net income attributable to noncontrolling interests (3,117)           3,117
Foreign currency translation 3,087           1,579
Dividends paid to noncontrolling interests             (95)
Balance at end of period at Sep. 26, 2026 $ 3,542,318 $ 3,208 $ 362,735 $ 4,355,779 $ (60,530) $ (1,149,741) $ 30,867