Leases - Schedule of Underlying Assets under Operating Leases (Parenthetical) (Details) $ in Millions	Dec. 31, 2020 USD ($)
Uniti Fiber Northeast Operations and Dark Fiber IRU Contracts \| Disposal Group, Held for Sale, Not qualified as Discontinued Operation
Lessor Lease Description [Line Items]
Assets under operating leases	$ 4.5

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.

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