XML 70 R59.htm IDEA: XBRL DOCUMENT v3.21.2

EARNINGS (LOSSES) PER COMMON SHARE - Shares Attributable to Outstanding Equity Awards Excluded from the Calculation of Diluted Earnings Per Share (Details) - $ / shares shares in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Earnings Per Share [Abstract]
Potentially dilutive shares excluded as anti-dilutive (in shares)	3,325	4,708	3,932	3,882
Weighted-average price per share (in dollars per share)	$ 59.47	$ 58.27	$ 57.07	$ 60.63

X

- Definition

Represents the weighted-average price per share of the shares excluded from the calculation of diluted earnings per share because their inclusion would have been anti-dilutive.

+ References

No definition available.

+ Details

Name:	hp_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePrice
Namespace Prefix:	hp_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

+ Details

Name:	us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

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