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Note 5 - Equity Investments - Carrying Value of Equity Method Investments Without Determinable Fair Values (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021 | Nov. 12, 2020
--- | --- | --- | ---
Cost Method Investment | $ 158,099 |  | $ 138,498 |  |
Equity Method Investments | 1,027,837 |  | 589,067 |  |
Total equity investments | $ 1,185,936 |  | 727,565 |  |
Clearwave [Member] |  |  |  |  |
Equity method investments, ownership | 58.00% |  |  |  |
Equity Method Investments | $ 425,525 |  | $ 0 |  |
MBI [Member] |  |  |  |  |
Equity method investments, ownership | 45.00% | [1] | 45.00% |  |
Equity Method Investments | $ 569,033 | [1] | $ 557,715 | [1] | $ 630,700
Wisper [Member] |  |  |  |  |
Equity method investments, ownership | 40.40% |  |  |  |
Equity Method Investments | $ 33,279 |  | 31,352 |  |
MetroNet Systems [Member] |  |  |  |  |
Cost Method Investment | 7,000 |  | 0 |  |
Nextlink [Member] |  |  |  |  |
Cost Method Investment | 77,245 |  | 77,245 |  |
Point Broadband Holdings [Member] |  |  |  |  |
Cost Method Investment | 30,373 |  | 25,000 |  |
Tristar Acquisition I Corp [Member] |  |  |  |  |
Cost Method Investment | 23,003 |  | 23,083 |  |
Visionary Communications [Member] |  |  |  |  |
Cost Method Investment | 7,190 |  | 0 |  |
Other Cost Method Investment [Member] |  |  |  |  |
Cost Method Investment | $ 13,288 |  | $ 13,170 |  |
[1] | The Company holds a call option to purchase all but not less than all of the remaining equity interests in MBI that the Company does not already own between January 1, 2023 and June 30, 2024. If the call option is not exercised, certain investors in MBI hold a put option to sell (and to cause all members of MBI other than the Company to sell) to the Company all but not less than all of the remaining equity interests in MBI that the Company does not already own between July 1, 2025 and September 30, 2025. The call and put options (collectively referred to as the “MBI Net Option”) are measured at fair value using Monte Carlo simulations that rely on assumptions around MBI’s equity value, MBI’s and the Company’s equity volatility, MBI’s and the Company’s EBITDA volatility, risk adjusted discount rates and the Company’s cost of debt, among others. The final MBI purchase price allocation resulted in $630.7 million being allocated to the MBI equity investment and $19.7 million and $75.5 million being allocated to the call and put options, respectively. The MBI Net Option is remeasured at fair value on a quarterly basis. The carrying value of the MBI Net Option liability was $32.7 million and $123.6 million as of June 30, 2022 and December 31, 2021, respectively, and was included within other noncurrent liabilities in the condensed consolidated balance sheets. Refer to note 10 for further information on the MBI Net Option.

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- Definition Amount, after adjustment, of cost-method investment. Adjustments include, but are not limited to, dividends received in excess of earnings after date of investment that are considered a return of investment and other than temporary impairments. + References No definition available. + Details
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