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Note 4 - Business Combinations - Allocation of Purchase Price for the Acquisition of Rapid (Details) - USD ($) $ in Thousands |  | 9 Months Ended |
--- | --- | --- | ---
Jan. 22, 2021 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020
Assets acquired: |  |  |  |
Goodwill |  | $ 404,240 |  | $ 128,752
Liabilities assumed: |  |  |  |
Net cash consideration |  | 127,413 | $ (0) |
Acquired 3D Hubs [Member] |  |  |  |
Assets acquired: |  |  |  |
Current assets |  | 2,497 |  |
Intangible assets |  | 30,770 |  |
Goodwill |  | 281,845 |  |
Other long-term assets |  | 1,139 |  |
Total assets acquired |  | 316,251 |  |
Liabilities assumed: |  |  |  |
Current contingent consideration |  | 7,093 |  |
Current liabilities |  | 5,666 |  |
Long-term contingent consideration |  | 6,507 |  |
Long-term deferred tax liabilities |  | 2,608 |  |
Other long-term liabilities |  | 255 |  |
Total liabilities assumed |  | 22,129 |  |
Net assets acquired |  | 294,122 |  |
Payments to Acquire Businesses, Gross |  | 133,847 |  |
Cash acquired |  | (6,434) |  |
Net cash consideration | $ 127,400 | 127,413 |  |
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable | 166,700 | 166,709 |  |
Total purchase consideration | $ 294,100 | $ 294,122 |  |

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- Definition The amount of liability arising from an inherited contingency (as defined) which has been recognized as of the acquisition date, classified as noncurrent. + References No definition available. + Details
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