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Note 4 - Acquisition-related Items | 12 Months Ended
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Dec. 31, 2018
Notes to Financial Statements |
Business Combination Disclosure Acquisition Related Items [Text Block] |
4. |  | Acquisition-related items
Acquisition-related expense comprises the following:
|  | 2018 |  |  | 2017 |
Transaction costs |  | $ | 11,747 |  |  | $ | 6,247 |
Contingent consideration fair value adjustments |  |  | 1,675 |  |  |  | 1,054 |
Contingent consideration compensation expense |  |  | 8,553 |  |  |  | 7,626 |
|  | $ | 21,975 |  |  | $ | 14,927 |
Contingent consideration compensation expense and contingent consideration fair value adjustments relate to acquisitions made in the current year as well as the preceding four years.

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- Definition The disclosure for costs of business combination(s) (or series of individually immaterial business combinations) costs including contingent consideration fair value adjustments, transaction costs or other purchase accounting adjustments that are charged to income. + References No definition available. + Details
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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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