v3.26.1
Fair Value Measurements - Investment Assets At Fair Value (Details) - EBP 041 - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
EBP, Investment, Fair Value and NAV [Line Items]    
Investments in the fair value hierarchy $ 1,578,475 $ 1,347,578
Stable value fund (GIC at contract value) 57,407 60,068
EBP, Investment, Excluding Plan Interest in Master Trust, Fair and Contract Value 1,635,882 1,407,646
Total    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments in the fair value hierarchy 245,006 213,437
Total | Vulcan Materials Company Stock Fund    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments in the fair value hierarchy 101,823 106,706
Total | Mutual funds    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments in the fair value hierarchy 133,306 99,467
Total | Empower self-directed brokerage account    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments in the fair value hierarchy 9,815 7,143
Total | Other domestic equities    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments in the fair value hierarchy 62 121
Level 1    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments in the fair value hierarchy 245,006 213,437
Level 1 | Vulcan Materials Company Stock Fund    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments in the fair value hierarchy 101,823 106,706
Level 1 | Mutual funds    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments in the fair value hierarchy 133,306 99,467
Level 1 | Empower self-directed brokerage account    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments in the fair value hierarchy 9,815 7,143
Level 1 | Other domestic equities    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments in the fair value hierarchy 62 121
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 2 | Empower self-directed brokerage account    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments in the fair value hierarchy 0 0
Level 2 | Other domestic equities    
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
Level 3 | Empower self-directed brokerage account    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments in the fair value hierarchy 0 0
Level 3 | Other domestic equities    
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 $ 1,333,469 $ 1,134,141