XML 79 R61.htm IDEA: XBRL DOCUMENT
v3.22.2.2

LEASES - Narrative (Details) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2022 USD ($) rig renewal_option | Sep. 30, 2021 USD ($) | Sep. 30, 2020 USD ($)
Lessee, Lease, Description [Line Items] |  |  |
Operating lease expense | $ 11,200 | $ 17,300 | $ 18,600
Operating lease right-of-use assets | $ 39,064 | 49,187 |
Tulsa Corporate Office Lease |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Number of renewal options | renewal_option | 2 |  |
Renewal option term | 5 years |  |
Tulsa Industrial Facility Lease |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Number of renewal options | renewal_option | 2 |  |
Renewal option term | 2 years |  |
Houston Assembly Facility |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Number of renewal options | rig | 1 |  |
Operating lease right-of-use assets | $ 12,200 | 16,000 |
Operating Lease, Liability | $ 12,500 | $ 16,200 |
Houston Assembly Facility | Minimum |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Renewal option term | 5 years |  |
Houston Assembly Facility | Maximum |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Renewal option term | 10 years |  |

X
- Definition Lessee Operating Lease, Number Of Options To Extend + References No definition available. + Details
Name: | hp_LesseeOperatingLeaseNumberOfOptionsToExtend
Namespace Prefix: | hp_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition 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. + References No definition available. + Details
Name: | us-gaap_LesseeLeaseDescriptionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918673-209980 + Details
Name: | us-gaap_LesseeOperatingLeaseRenewalTerm
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of operating lease expense. Excludes sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 4 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918638-209977 + Details
Name: | us-gaap_OperatingLeaseExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Present value of lessee's discounted obligation for lease payments from operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + Details
Name: | us-gaap_OperatingLeaseLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of lessee's right to use underlying asset under operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + Details
Name: | us-gaap_OperatingLeaseRightOfUseAsset
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_LeaseContractualTermAxis=hp_TulsaCorporateOfficeLeaseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LeaseContractualTermAxis=hp_TulsaIndustrialFacilityLeaseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LeaseContractualTermAxis=hp_HoustonAssemblyFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
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: |