Consolidated Statement of Stockholders' Equity (unaudited) - USD ($)
shares in Millions, $ in Millions |
Total |
Trinity Stockholders’ Equity |
Common Stock |
Capital in Excess of Par Value |
Retained Earnings |
Accumulated other comprehensive income (loss) |
Treasury Stock |
Noncontrolling Interest |
| $0.01 Par Value |
|
$ 0.01
|
|
|
|
|
|
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
| Common Stock, Shares, Issued |
|
|
|
(81.8)
|
|
|
|
|
|
| Treasury Stock, Common, Shares |
|
|
|
|
|
|
|
0.0
|
|
| Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Beginning Balance at Dec. 31, 2023 |
|
$ 1,275.5
|
$ 1,037.1
|
$ 0.8
|
$ 15.4
|
$ 1,010.5
|
$ 11.0
|
$ (0.6)
|
$ 238.4
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
| Net income |
|
27.4
|
23.7
|
|
|
23.7
|
|
|
3.7
|
| Other comprehensive income |
|
7.5
|
7.4
|
|
|
|
7.4
|
|
0.1
|
| Cash dividends declared on common stock (1) |
[1] |
(23.3)
|
(23.3)
|
|
|
(23.3)
|
|
|
|
| Distributions to noncontrolling interest |
|
(3.0)
|
|
|
|
|
|
|
(3.0)
|
| Stock-based compensation expense |
|
4.7
|
4.7
|
|
4.7
|
|
|
|
|
| Settlement of share-based awards, net |
|
(0.3)
|
(0.3)
|
|
0.1
|
|
|
(0.4)
|
|
| Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Ending Balance at Mar. 31, 2024 |
|
$ 1,288.5
|
1,049.3
|
0.8
|
20.2
|
1,010.9
|
18.4
|
(1.0)
|
239.2
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
| Common Stock, Dividends, Per Share, Declared |
|
$ 0.28
|
|
|
|
|
|
|
|
| Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Beginning Balance at Dec. 31, 2023 |
|
$ 1,275.5
|
1,037.1
|
0.8
|
15.4
|
1,010.5
|
11.0
|
(0.6)
|
238.4
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
| Net income |
|
83.8
|
|
|
|
|
|
|
|
| Other comprehensive income |
|
(3.4)
|
|
|
|
|
|
|
|
| Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Ending Balance at Jun. 30, 2024 |
|
$ 1,304.0
|
1,065.5
|
$ 0.8
|
15.9
|
1,042.0
|
7.4
|
$ (0.6)
|
238.5
|
| $0.01 Par Value |
|
$ 0.01
|
|
|
|
|
|
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
| Common Stock, Shares, Issued |
|
|
|
(81.8)
|
|
|
|
|
|
| Treasury Stock, Common, Shares |
|
|
|
|
|
|
|
0.0
|
|
| Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Beginning Balance at Mar. 31, 2024 |
|
$ 1,288.5
|
1,049.3
|
$ 0.8
|
20.2
|
1,010.9
|
18.4
|
$ (1.0)
|
239.2
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
| Net income |
|
56.4
|
54.4
|
|
|
54.4
|
|
|
2.0
|
| Other comprehensive income |
|
(10.9)
|
(11.0)
|
|
|
|
(11.0)
|
|
0.1
|
| Cash dividends declared on common stock (1) |
[1] |
(23.3)
|
(23.3)
|
|
|
(23.3)
|
|
|
|
| Distributions to noncontrolling interest |
|
(2.8)
|
|
|
|
|
|
|
(2.8)
|
| Stock-based compensation expense |
|
5.9
|
5.9
|
|
5.9
|
|
|
|
|
| Restricted shares, net, (in shares) |
|
|
|
(0.9)
|
|
|
|
(0.3)
|
|
| Settlement of share-based awards, net |
|
(8.9)
|
(8.9)
|
|
0.2
|
|
|
$ (9.1)
|
|
| Treasury Stock, Shares, Acquired |
|
|
|
|
|
|
|
0.0
|
|
| Treasury Stock, Value, Acquired, Cost Method |
|
(0.9)
|
(0.9)
|
|
|
|
|
$ (0.9)
|
|
| Treasury Stock, Shares, Retired |
|
|
|
(0.3)
|
|
|
|
(0.3)
|
|
| Retirement of treasury stock |
|
0.0
|
0.0
|
|
(10.4)
|
|
|
$ (10.4)
|
|
| Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Ending Balance at Jun. 30, 2024 |
|
$ 1,304.0
|
1,065.5
|
$ 0.8
|
15.9
|
1,042.0
|
7.4
|
$ (0.6)
|
238.5
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
| Common Stock, Dividends, Per Share, Declared |
|
$ 0.28
|
|
|
|
|
|
|
|
| $0.01 Par Value |
|
0.01
|
|
|
|
|
|
|
|
| Common Stock, Shares, Issued |
|
|
|
(82.4)
|
|
|
|
|
|
| Treasury Stock, Common, Shares |
|
|
|
|
|
|
|
0.0
|
|
| $0.01 Par Value |
|
$ 0.01
|
|
|
|
|
|
|
|
| Common Stock, Shares, Issued |
|
|
|
(81.8)
|
|
|
|
|
|
| Treasury Stock, Common, Shares |
|
|
|
|
|
|
|
0.0
|
|
| Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Beginning Balance at Dec. 31, 2024 |
|
$ 1,307.2
|
1,058.9
|
$ 0.8
|
8.8
|
1,054.1
|
(4.2)
|
$ (0.6)
|
248.3
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
| Net income |
|
27.1
|
22.1
|
|
|
22.1
|
|
|
5.0
|
| Other comprehensive income |
|
0.1
|
0.0
|
|
|
|
0.0
|
|
0.1
|
| Cash dividends declared on common stock (1) |
[2] |
(24.6)
|
(24.6)
|
|
|
(24.6)
|
|
|
|
| Distributions to noncontrolling interest |
|
(6.9)
|
|
|
|
|
|
|
(6.9)
|
| Stock-based compensation expense |
|
5.3
|
5.3
|
|
5.3
|
|
|
|
|
| Settlement of share-based awards, net |
|
(0.3)
|
(0.3)
|
|
0.0
|
|
|
$ (0.3)
|
|
| Treasury Stock, Shares, Acquired |
|
|
|
|
|
|
|
(0.3)
|
|
| Treasury Stock, Value, Acquired, Cost Method |
|
(8.2)
|
(8.2)
|
|
|
|
|
$ (8.2)
|
|
| Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Ending Balance at Mar. 31, 2025 |
|
$ 1,299.7
|
1,053.2
|
0.8
|
14.1
|
1,051.6
|
(4.2)
|
(9.1)
|
246.5
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
| Common Stock, Dividends, Per Share, Declared |
|
$ 0.30
|
|
|
|
|
|
|
|
| Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Beginning Balance at Dec. 31, 2024 |
|
$ 1,307.2
|
1,058.9
|
0.8
|
8.8
|
1,054.1
|
(4.2)
|
(0.6)
|
248.3
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
| Net income |
|
47.1
|
|
|
|
|
|
|
|
| Other comprehensive income |
|
0.2
|
|
|
|
|
|
|
0.2
|
| Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Ending Balance at Jun. 30, 2025 |
|
$ 1,257.8
|
1,009.1
|
$ 0.8
|
0.0
|
1,013.0
|
(4.2)
|
$ (0.5)
|
248.7
|
| $0.01 Par Value |
|
$ 0.01
|
|
|
|
|
|
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
| Common Stock, Shares, Issued |
|
|
|
(81.8)
|
|
|
|
|
|
| Treasury Stock, Common, Shares |
|
|
|
|
|
|
|
0.3
|
|
| Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Beginning Balance at Mar. 31, 2025 |
|
$ 1,299.7
|
1,053.2
|
$ 0.8
|
14.1
|
1,051.6
|
(4.2)
|
$ (9.1)
|
246.5
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
| Net income |
|
20.0
|
14.1
|
|
|
14.1
|
|
|
5.9
|
| Other comprehensive income |
|
0.1
|
0.0
|
|
|
|
0.0
|
|
0.1
|
| Cash dividends declared on common stock (1) |
[2] |
(24.7)
|
(24.7)
|
|
|
(24.7)
|
|
|
|
| Distributions to noncontrolling interest |
|
(3.8)
|
|
|
|
|
|
|
(3.8)
|
| Stock-based compensation expense |
|
5.4
|
5.4
|
|
5.4
|
|
|
|
|
| Restricted shares, net, (in shares) |
|
|
|
(0.9)
|
|
|
|
(0.3)
|
|
| Settlement of share-based awards, net |
|
(7.9)
|
(7.9)
|
|
0.1
|
|
|
$ (8.0)
|
|
| Treasury Stock, Shares, Acquired |
|
|
|
|
|
|
|
(1.2)
|
|
| Treasury Stock, Value, Acquired, Cost Method |
|
(31.0)
|
(31.0)
|
|
|
|
|
$ (31.0)
|
|
| Treasury Stock, Shares, Retired |
|
|
|
(1.8)
|
|
|
|
(1.8)
|
|
| Retirement of treasury stock |
|
0.0
|
0.0
|
|
(19.6)
|
(28.0)
|
|
$ (47.6)
|
|
| Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Ending Balance at Jun. 30, 2025 |
|
$ 1,257.8
|
$ 1,009.1
|
$ 0.8
|
$ 0.0
|
$ 1,013.0
|
$ (4.2)
|
$ (0.5)
|
$ 248.7
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
| Common Stock, Dividends, Per Share, Declared |
|
$ 0.30
|
|
|
|
|
|
|
|
| $0.01 Par Value |
|
$ 0.01
|
|
|
|
|
|
|
|
| Common Stock, Shares, Issued |
|
|
|
(80.9)
|
|
|
|
|
|
| Treasury Stock, Common, Shares |
|
|
|
|
|
|
|
0.0
|
|
|
|