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Schedule II - Valuation And Qualifying Accounts
 12 Months Ended
Dec. 28, 2024
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
Schedule II - Valuation And Qualifying Accounts
MUELLER INDUSTRIES, INC.
SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS
Years Ended December 28, 2024, December 30, 2023, and December 31, 2022
  
  Additions  
(In thousands)Balance at beginning of yearCharged to costs and expensesOther additionsDeductionsBalance at end
of year
2024     
Allowance for doubtful accounts
$2,830 $1,147 $5 $258 $3,724 
Environmental reserves
$18,940 $1,785 $— $2,311 $18,414 
Valuation allowance for deferred tax assets
$23,078 $(4,931)$— $1,455 $16,692 
 
2023     
Allowance for doubtful accounts
$2,687 $(84)$227 $— $2,830 
Environmental reserves
$20,534 $652 $— $2,246 $18,940 
Valuation allowance for deferred tax assets
$21,504 $4,939 $267 $3,632 $23,078 
 
2022
 
 
 
 
 
Allowance for doubtful accounts
$2,590 $323 $— $226 $2,687 
Environmental reserves
$27,426 $1,367 $— $8,259 $20,534 
Valuation allowance for deferred tax assets
$26,624 $(1,648)$509 $3,981 $21,504