Note 7 - Goodwill and Intangible Assets - Changes in Carrying Amount of Goodwill (Details) $ in Millions	9 Months Ended
Sep. 30, 2021 USD ($)
Balance	$ 249.5
Balance, accumulated impairment losses	(41.7)
Balance, net	207.8
Divestiture	(1.7)
Foreign currency fluctuations	(9.3)
Foreign currency fluctuations	0.9
Foreign currency fluctuations	(8.4)
Balance	238.5
Balance	(40.8)
Balance	$ 197.7

The change to the recorded value of accumulated impairment losses for foreign currency translation adjustments.

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The change to the recorded net goodwill for foreign currency translation adjustments.

+ References

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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