Leases - Schedule of Depreciation Expense for Underlying Assets under Operating Leases (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2019
Leases [Abstract]
Depreciation expense for underlying assets under operating leases	$ 75,093	$ 151,367

Depreciation expense for underlying assets under operating leases.

No definition available.

Name:	unit_DepreciationExpenseForUnderlyingAssetsUnderOperatingLeases
Namespace Prefix:	unit_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration