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GOODWILL AND INTANGIBLES - INDEFINITE LIVED INTANGIBLE ASSETS (Details) - USD ($) $ in Millions | Jun. 30, 2023 | Dec. 31, 2022
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Indefinite-lived Intangible Assets |  |
Indefinite-lived intangible asset | $ 29.3 | $ 24.9
Radio spectrum |  |
Indefinite-lived Intangible Assets |  |
Indefinite-lived intangible asset | 4.4 |
MGU | Trade name |  |
Indefinite-lived Intangible Assets |  |
Indefinite-lived intangible asset | $ 5.2 | $ 5.2

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 + Details
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