v3.26.1
Fair Value Measurements - Investment Assets At Fair Value (Details) - EBP 050 - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
EBP, Investment, Fair Value and NAV [Line Items]    
Investments in the fair value hierarchy $ 131,451 $ 122,652
Participant-directed investments, at contract value 10,839 13,277
Total investments 142,290 135,929
Total    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments in the fair value hierarchy 24,186 21,161
Total | Vulcan Materials Company Stock Fund    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments in the fair value hierarchy 15,232 15,163
Total | Mutual funds    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments in the fair value hierarchy 8,954 5,998
Level 1    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments in the fair value hierarchy 24,186 21,161
Level 1 | Vulcan Materials Company Stock Fund    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments in the fair value hierarchy 15,232 15,163
Level 1 | Mutual funds    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments in the fair value hierarchy 8,954 5,998
Level 2    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments in the fair value hierarchy 0 0
Level 2 | Vulcan Materials Company Stock Fund    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments in the fair value hierarchy 0 0
Level 2 | Mutual funds    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments in the fair value hierarchy 0 0
Level 3    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments in the fair value hierarchy 0 0
Level 3 | Vulcan Materials Company Stock Fund    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments in the fair value hierarchy 0 0
Level 3 | Mutual funds    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments in the fair value hierarchy 0 0
NAV | Common/collective trust funds    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments in the fair value hierarchy $ 107,265 $ 101,491