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Note 6 - Revenues (Tables) | 12 Months Ended
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Dec. 31, 2020
Notes Tables |
Disaggregation of Revenue [Table Text Block] |
|  | 2020 |  |  | 2019 |  |  | 2018 |
Insurance: |  |  |  |  |  |  |  |  |  |  |  |
Underwriting & rating |  | $ | 1,390.6 |  |  | $ | 1,254.3 |  |  | $ | 1,153.5 |
Claims |  |  | 595.7 |  |  |  | 610.9 |  |  |  | 561.4 |
Total Insurance |  |  | 1,986.3 |  |  |  | 1,865.2 |  |  |  | 1,714.9 |
Energy and Specialized Markets |  |  | 641.6 |  |  |  | 563.9 |  |  |  | 504.3 |
Financial Services |  |  | 156.7 |  |  |  | 178.0 |  |  |  | 175.9 |
Total revenues |  | $ | 2,784.6 |  |  | $ | 2,607.1 |  |  | $ | 2,395.1 |
|  | 2020 |  |  | 2019 |  |  | 2018 |
Revenues: |  |  |  |  |  |  |  |  |  |  |  |
United States ("U.S.") |  | $ | 2,133.6 |  |  | $ | 2,005.6 |  |  | $ | 1,849.4 |
United Kingdom ("U.K.") |  |  | 181.6 |  |  |  | 177.3 |  |  |  | 148.2 |
Other countries |  |  | 469.4 |  |  |  | 424.2 |  |  |  | 397.5 |
Total revenues |  | $ | 2,784.6 |  |  | $ | 2,607.1 |  |  | $ | 2,395.1 |

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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=121604090&loc=SL49130545-203045 + Details
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