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Note 2 - Acquisitions - Identifiable Intangible Assets Acquired (Details) - USD ($) $ in Millions |  |  | 9 Months Ended
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May 03, 2021 | Jul. 01, 2020 | Sep. 30, 2021
Hargray [Member] |  |  |
Useful Life (Year) | 13 years 6 months |  |
Hargray [Member] | Franchise Rights [Member] |  |  |
Fair Value |  |  | $ 1,110.0
Valu-Net [Member] | Trademarks and Trade Names 1 [Member] |  |  |
Fair Value |  | $ 0.8 |
Valu-Net [Member] | Franchise Rights [Member] |  |  |
Fair Value |  | 11.2 |
Customer Relationships [Member] | Hargray [Member] |  |  |
Fair Value |  |  | $ 472.0
Useful Life (Year) |  |  | 13 years 8 months 12 days
Customer Relationships [Member] | Valu-Net [Member] |  |  |
Fair Value |  | $ 7.7 |
Useful Life (Year) |  | 13 years 6 months |
Trademarks and Trade Names [Member] | Hargray [Member] |  |  |
Fair Value |  |  | $ 10.0
Useful Life (Year) |  |  | 4 years 2 months 12 days

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition Amount of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit, acquired at the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123413009&loc=d3e4845-128472 + Details
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- Definition The amount of identifiable intangible assets recognized as of the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=123455525&loc=d3e2207-128464 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123413009&loc=d3e4845-128472 + Details
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