v3.26.3
Consolidated Statements of Comprehensive Income (unaudited) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Statement of Comprehensive Income [Abstract]        
Net income $ 17.5 $ 36.0 $ 140.6 $ 83.1
Other comprehensive income (loss):        
Unrealized gains arising during the period, net of tax expense of $3.5, $0.8, $8.5 and $0.4 12.0 3.2 28.1 1.7
Reclassification adjustments for gains included in net income, net of tax expense of $0.4, $1.0, $1.7, and $0.5 (1.9) (3.0) (5.9) (1.3)
Amortization of net actuarial losses, net of tax benefit of $—, $—, $—, and $— 0.0 0.1 0.1 0.1
Foreign currency translation adjustments, net of tax benefit of $—, $—, $—, and $— (0.6) 0.0 (0.6) 0.0
Other Comprehensive Income (Loss), Net of Tax, Total 9.5 0.3 21.7 0.5
Comprehensive income 27.0 36.3 162.3 83.6
Less: comprehensive income (loss) attributable to noncontrolling interest (0.1) 5.7 0.5 16.8
Comprehensive income attributable to Trinity Industries, Inc. $ 27.1 $ 30.6 $ 161.8 $ 66.8