SUPPLEMENTAL OIL AND GAS DISCLOSURES (Results Of Operations For Producing Activities) (Details) - USD ($) $ in Thousands	4 Months Ended	8 Months Ended	12 Months Ended
Dec. 31, 2020	Aug. 31, 2020	Dec. 31, 2021
Supplemental Oil and Gas Disclosures [Abstract]
Revenues	$ 55,272	$ 96,033	$ 223,681
Production costs	(20,510)	(46,633)	(62,443)
Depreciation, depletion, amortization, and impairment	(40,840)	(461,901)	(24,261)
Results of operations, income before income taxes	(6,078)	(412,501)	136,977
Income tax (expense) benefit	128	6,698	168
Results of operations for producing activities (excluding corporate overhead and financing costs)	$ (5,950)	$ (405,803)	$ 137,145

Supplemental Oil and Gas Disclosures [Abstract]

No definition available.

Name:	unt_SupplementalOilAndGasDisclosuresAbstract
Namespace Prefix:	unt_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Depreciation, depletion and amortization, and valuation provisions (impairments) related to oil and gas producing activities.

+ References

+ Details

Name:	us-gaap_ResultsOfOperationsDepreciationDepletionAndAmortizationAndValuationProvisions
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Income before income taxes for oil and gas producing activities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 50
-Paragraph 23
-URI http://asc.fasb.org/extlink&oid=123377692&loc=d3e62136-109447

+ Details

Name:	us-gaap_ResultsOfOperationsIncomeBeforeIncomeTaxes
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Income tax expense for oil and gas producing activities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 50
-Paragraph 23
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=123377692&loc=d3e62136-109447

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 50
-Paragraph 25
-URI http://asc.fasb.org/extlink&oid=123377692&loc=d3e62259-109447

+ Details

Name:	us-gaap_ResultsOfOperationsIncomeTaxExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The results of operations for oil and gas producing activities, excluding corporate overhead and interest costs.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 50
-Paragraph 26
-URI http://asc.fasb.org/extlink&oid=123377692&loc=d3e62299-109447

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 50
-Paragraph 23
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=123377692&loc=d3e62136-109447

+ Details

Name:	us-gaap_ResultsOfOperationsOilAndGasProducingActivitiesNetIncomeExcludingCorporateOverheadAndInterestCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Production (lifting) costs from oil and gas producing activities, including but not limited to lease operating expense, production and ad valorem taxes, and transportation expense.

+ References

+ Details

Name:	us-gaap_ResultsOfOperationsProductionOrLiftingCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Total revenues from oil and gas producing activities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 50
-Paragraph 23
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123377692&loc=d3e62136-109447

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 50
-Paragraph 24
-URI http://asc.fasb.org/extlink&oid=123377692&loc=d3e62246-109447

+ Details

Name:	us-gaap_ResultsOfOperationsRevenueFromOilAndGasProducingActivities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration