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Note 9 - Goodwill and Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018
Finite-lived intangible assets, gross | $ 653,682 | $ 573,795
Finite-lived intangible assets, accumulated amortization | (484,269) | (455,626)
Finite-lived intangible assets, net | 169,413 | 118,169
Indefinite-lived tradenames, gross | 128,321 | 128,321
Total intangible assets, gross | 782,003 | 702,116
Total intangible assets, net | $ 297,734 | 246,490
Trade Names [Member] |  |
Finite-lived intangible assets, useful life (Year) | 9 years |
Finite-lived intangible assets, gross | $ 56,669 | 56,378
Finite-lived intangible assets, accumulated amortization | (36,613) | (32,416)
Finite-lived intangible assets, net | $ 20,056 | 23,962
Customer Lists [Member] |  |
Finite-lived intangible assets, useful life (Year) | 12 years |
Finite-lived intangible assets, gross | $ 369,932 | 368,343
Finite-lived intangible assets, accumulated amortization | (314,380) | (307,149)
Finite-lived intangible assets, net | $ 55,552 | 61,194
Patents [Member] |  |
Finite-lived intangible assets, useful life (Year) | 13 years |
Finite-lived intangible assets, gross | $ 131,086 | 131,030
Finite-lived intangible assets, accumulated amortization | (110,554) | (101,060)
Finite-lived intangible assets, net | $ 20,532 | 29,970
Developed Technology Rights [Member] |  |
Finite-lived intangible assets, useful life (Year) | 9 years |
Finite-lived intangible assets, gross | $ 82,886 | 13,169
Finite-lived intangible assets, accumulated amortization | (17,872) | (12,058)
Finite-lived intangible assets, net | 65,014 | 1,111
Computer Software, Intangible Asset [Member] |  |
Finite-lived intangible assets, gross | 1,046 | 1,046
Finite-lived intangible assets, accumulated amortization | (1,046) | (1,046)
Finite-lived intangible assets, net | $ 0 | 0
Noncompete Agreements [Member] |  |
Finite-lived intangible assets, useful life (Year) | 4 years |
Finite-lived intangible assets, gross | $ 12,063 | 3,829
Finite-lived intangible assets, accumulated amortization | (3,804) | (1,897)
Finite-lived intangible assets, net | $ 8,259 | $ 1,932

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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the rights acquired through registration of a trade name to gain or protect exclusive use thereof for a projected indefinite period of benefit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 + Details
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