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v3.25.2

INVESTMENT IN SSAT (Details) - USD ($) $ in Millions |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Mar. 01, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Mar. 31, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
Investments in affiliates |  |  |  |  |  |  |
Investment in SSAT |  | $ 98.3 |  |  | $ 98.3 |  | $ 84.1
Financial information for equity method investment |  |  |  |  |  |  |
Company's Share of SSAT's Net Income (Loss) |  | 7.3 | $ 1.2 |  | 13.9 | $ 1.6 |
SSAT ST |  |  |  |  |  |  |
Investments in affiliates |  |  |  |  |  |  |
Ownership percentage, noncontrolling owner | 50.00% |  |  |  |  |  |
SSAT |  |  |  |  |  |  |
Investments in affiliates |  |  |  |  |  |  |
Investment in SSAT |  | 98.3 |  |  | 98.3 |  | $ 84.1
Increase in equity method investment in SSAT |  |  |  | $ 13.2 |  |  |
Equity Method Investments, Increase (decrease) in deferred income taxes expense (benefit), |  |  |  | 3.1 |  |  |
Equity method investments, increase (decrease) in retained earnings |  |  |  | $ 10.1 |  |  |
Financial information for equity method investment |  |  |  |  |  |  |
Operating revenue |  | 307.7 | 273.9 |  | 619.2 | 544.2 |
Operating costs and expenses |  | (294.6) | (278.5) |  | (592.1) | (556.9) |
Operating income (loss) |  | 13.1 | (4.6) |  | 27.1 | (12.7) |
SSAT's Net Income (Loss) |  | 18.7 | 2.1 |  | 36.4 | (1.7) |
SSAT |  |  |  |  |  |  |
Financial information for equity method investment |  |  |  |  |  |  |
Company's Share of SSAT's Net Income (Loss) |  | $ 7.3 | $ 1.2 |  | $ 13.9 | $ 1.6 |
SSAT | SSAT ST |  |  |  |  |  |  |
Investments in affiliates |  |  |  |  |  |  |
Percentage of interests sold in SSAT ST | 25.00% |  |  |  |  |  |
SSAT's ownership interest in SSAT ST (as a percent) | 50.00% |  |  |  |  |  |

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