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Note 8 - Goodwill and Intangible Assets - Summary of Changes in Goodwill (Details) $ in Millions | 9 Months Ended
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Sep. 30, 2021 USD ($)
Goodwill | $ 4,108.1 |
Acquisitions and purchase of controlling interest | 61.0 |
Purchase accounting reclassifications | 1.1 |
Current period adjustment (1) | 0.0 | [1]
Foreign currency translation adjustment | (40.7) |
Goodwill | 4,129.5 |
Insurance [Member] |  |
Goodwill | 1,208.6 |
Acquisitions and purchase of controlling interest | 40.6 |
Purchase accounting reclassifications | 1.1 |
Current period adjustment (1) | 15.8 | [1]
Foreign currency translation adjustment | (7.1) |
Goodwill | 1,259.0 |
Energy and Specialized Markets [Member] |  |
Goodwill | 2,423.6 |
Acquisitions and purchase of controlling interest | 20.4 |
Purchase accounting reclassifications | 0.0 |
Current period adjustment (1) | (15.8) | [1]
Foreign currency translation adjustment | (33.1) |
Goodwill | 2,395.1 |
Financial Services [Member] |  |
Goodwill | 475.9 |
Acquisitions and purchase of controlling interest | 0.0 |
Purchase accounting reclassifications | 0.0 |
Current period adjustment (1) | 0.0 | [1]
Foreign currency translation adjustment | (0.5) |
Goodwill | $ 475.4 |
[1] | Of which $15.8 million relates to a segment reclassification, refer to Note 14. Segment Reporting

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