Note 5 - Goodwill and Other Intangible Assets - Changes in the Carrying Amount of Goodwill (Details) $ in Thousands	9 Months Ended
Sep. 30, 2021 USD ($)
Goodwill	$ 128,752
Goodwill acquired during the period	281,845
Foreign currency translation adjustments	(6,357)
Goodwill	$ 404,240

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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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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.

+ References

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