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Note 5 - Fair Value Measurements (Details Textual) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Other Accrued Liabilities [Member] |  |
Business Combination, Contingent Consideration, Liability, Total | $ 64,324 | $ 68,665
Other Long-term Liabilities [Member] |  |
Business Combination, Contingent Consideration, Liability, Total | 75,139 | $ 78,094
Fair Value, Inputs, Level 2 [Member] |  |
Debt Instrument, Fair Value Disclosure, Total | 778,050 |
Term Loan [Member] |  |
Long-term Debt, Total | $ 768,682 |

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