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OTHER ASSETS, NET (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Intangible Assets |  |  |
Less accumulated depreciation and amortization | $ (98.3) | $ (88.3) |
Data processing software, net | 46.8 | 43.3 |
Other assets | 135.9 | 163.0 |
Other assets, net | 182.7 | 206.3 |
Notes receivable, net | 124.2 | 136.9 |
Contra-revenue assets | 0.0 | 18.1 |
Amortization expense | 88.7 | 116.6 | $ 124.3
Software development work in progress |  |  |
Intangible Assets |  |  |
Software | 18.7 | 3.5 |
Data processing software |  |  |
Intangible Assets |  |  |
Software | 126.4 | 128.1 |
Amortization expense | $ 10.3 | $ 8.4 | $ 7.2

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