Leases - Future Sublease Rentals (Details) $ in Thousands	Dec. 31, 2020 USD ($)
Leases [Abstract]
2021	$ 8,703
2022	8,753
2023	8,806
2024	8,858
2025	8,913
Thereafter	124,813
Total	$ 168,846

Lessor sublease payments to be received due next twelve months.

No definition available.

Name:	unit_LessorSubleasePaymentsToBeReceivedDueNextTwelveMonths
Namespace Prefix:	unit_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant