XML 131 R111.htm IDEA: XBRL DOCUMENT
v3.25.3

SUBSEQUENT EVENTS (Details) $ in Millions | 3 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2025 USD ($) | Mar. 31, 2026 rig | Nov. 20, 2025 rig
Minimum | Forecast |  |  |
Subsequent Event [Line Items] |  |  |
Impairment charges | $ | $ 90.0 |  |
Maximum | Forecast |  |  |
Subsequent Event [Line Items] |  |  |
Impairment charges | $ | $ 110.0 |  |
Subsequent Event | North America Solutions Segment |  |  |
Subsequent Event [Line Items] |  |  |
Number of rigs, plan to scrap |  |  | 30
Number of rigs, previously decommissioned |  |  | 10
Subsequent Event | Offshore Solutions Segment |  |  |
Subsequent Event [Line Items] |  |  |
Number of rigs, plan to scrap |  |  | 3
Subsequent Event | Forecast | Saudi Arabia |  |  |
Subsequent Event [Line Items] |  |  |
Number of rigs to resume operations |  | 7 |
Number of rigs |  | 24 |

X
- Definition Number Of Rigs + References No definition available. + Details
Name: | hp_NumberOfRigs
Namespace Prefix: | hp_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number Of Rigs, Plan To Scrap + References No definition available. + Details
Name: | hp_NumberOfRigsPlanToScrap
Namespace Prefix: | hp_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number Of Rigs, Previously Decommissioned + References No definition available. + Details
Name: | hp_NumberOfRigsPreviouslyDecommissioned
Namespace Prefix: | hp_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of Rigs to Resume Operations + References No definition available. + Details
Name: | hp_NumberOfRigsToResumeOperations
Namespace Prefix: | hp_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 830 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481674/830-30-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 855 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483399/855-10-50-2 + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The charge against earnings resulting from the aggregate write down of tangible assets from their carrying value to their fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 205 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483499/205-20-50-1 + Details
Name: | us-gaap_TangibleAssetImpairmentCharges
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=hp_NorthAmericaSolutionsSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=hp_OffshoreSolutionsSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_SA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |