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Stock-Based Compensation (Tables)
12 Months Ended
Dec. 31, 2024
Share-Based Payment Arrangement [Abstract]  
Schedule of restricted stock activity
The activity for equity awards held by Arcosa employees for the year ended December 31, 2024 was as follows:
Arcosa Equity Awards Held by Arcosa EmployeesTrinity Equity Awards Held by Arcosa Employees
Weighted Average Grant-Date
Fair Value per Award
Equity awards outstanding at December 31, 2023872,933 332,902 $44.01 
Granted314,977  76.10 
Vested(368,830)(101,852)48.40 
Forfeited(50,992)(27,173)42.95 
Equity awards outstanding at December 31, 2024768,088 203,877 $52.37