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Note 3 - Revenues (Tables) | 9 Months Ended
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Sep. 30, 2021
Notes Tables |
Disaggregation of Revenue [Table Text Block] |
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
Insurance: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Underwriting & rating |  | $ | 390.5 |  |  | $ | 353.6 |  |  | $ | 1,156.0 |  |  | $ | 1,052.9 |
Claims |  |  | 167.4 |  |  |  | 150.7 |  |  |  | 487.5 |  |  |  | 438.9 |
Total Insurance |  |  | 557.9 |  |  |  | 504.3 |  |  |  | 1,643.5 |  |  |  | 1,491.8 |
Energy and Specialized Markets |  |  | 165.9 |  |  |  | 158.1 |  |  |  | 484.4 |  |  |  | 460.8 |
Financial Services |  |  | 35.2 |  |  |  | 40.3 |  |  |  | 104.7 |  |  |  | 118.6 |
Total revenues |  | $ | 759.0 |  |  | $ | 702.7 |  |  | $ | 2,232.6 |  |  | $ | 2,071.2 |
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
Revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
United States ("U.S.") |  | $ | 568.4 |  |  | $ | 537.6 |  |  | $ | 1,698.3 |  |  | $ | 1,584.2 |
United Kingdom ("U.K.") |  |  | 53.4 |  |  |  | 46.2 |  |  |  | 152.1 |  |  |  | 136.0 |
Other countries |  |  | 137.2 |  |  |  | 118.9 |  |  |  | 382.2 |  |  |  | 351.0 |
Total revenues |  | $ | 759.0 |  |  | $ | 702.7 |  |  | $ | 2,232.6 |  |  | $ | 2,071.2 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045 + Details
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