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Other Financial Data (Tables) | 9 Months Ended
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Sep. 30, 2020
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract] |
Summary of Major Classes of Other Current Assets | Major classes of other current assets consist of the following (in millions):
|  | September 30, 2020 |  |  | December 31, 2019 |
Premium finance advances and loans |  | $ | 422.0 |  |  | $ | 388.1 |
Accrued supplemental, direct bill and other receivables |  |  | 340.4 |  |  |  | 369.1 |
Refined coal production related receivables |  |  | 96.8 |  |  |  | 103.4 |
Deferred contract costs |  |  | 69.6 |  |  |  | 98.3 |
Prepaid expenses |  |  | 94.2 |  |  |  | 115.5 |
Total other current assets |  | $ | 1,023.0 |  |  | $ | 1,074.4 |

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