XML 54 R43.htm IDEA: XBRL DOCUMENT v3.21.1

DISCONTINUED OPERATIONS (Details) - Bs. / $	Mar. 31, 2021	Sep. 30, 2020	Mar. 31, 2020
Discontinued Operations and Disposal Groups [Abstract]
Foreign exchange rate (in bolivars per dollar)	10
DICOM floating rate (in bolivars per dollar)	1,987,185	436,677	80,946

X

- Definition

DICOM floating rate used by Venezuela.

+ References

No definition available.

+ Details

Name:	hp_DicomFloatingRate
Namespace Prefix:	hp_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Foreign exchange rate used to translate amounts denominated in functional currency to reporting currency.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section S99
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6897108&loc=SL6897125-166521

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32618-110901

+ Details

Name:	us-gaap_ForeignCurrencyExchangeRateTranslation1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant