XML 71 R61.htm IDEA: XBRL DOCUMENT v3.10.0.1

Segment Information - Income by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Segment information
Total Sales	$ 648,872	$ 498,564	$ 1,790,443	$ 1,272,437
Segment Operating Income (Loss)	35,225	834	89,726	(82,543)
Other
Segment information
Total Sales	11,324	4,262	26,504	10,697
Segment Operating Income (Loss)	(7,226)	(2,569)	(21,558)	(5,752)
Operating segment
Segment information
Total Sales	649,774	498,786	1,791,852	1,273,075
Operating segment | Other
Segment information
Total Sales	11,627	4,484	27,279	11,335
Inter-Segment
Segment information
Total Sales	(902)	(222)	(1,409)	(638)
Inter-Segment | Other
Segment information
Total Sales	303	222	775	638
Contract Drilling:
Segment information
Total Sales	637,548	494,302	1,763,939	1,261,740
Segment Operating Income (Loss)	42,451	3,403	111,284	(76,791)
Contract Drilling: | U.S. Land
Segment information
Total Sales	536,582	405,516	1,480,951	1,000,119
Segment Operating Income (Loss)	34,339	(7,980)	86,159	(90,718)
Contract Drilling: | Offshore
Segment information
Total Sales	37,669	33,711	104,018	103,758
Segment Operating Income (Loss)	3,780	6,456	17,954	19,152
Contract Drilling: | International Land
Segment information
Total Sales	63,297	55,075	178,970	157,863
Segment Operating Income (Loss)	4,332	4,927	7,171	(5,225)
Contract Drilling: | Operating segment
Segment information
Total Sales	638,147	494,302	1,764,573	1,261,740
Contract Drilling: | Operating segment | U.S. Land
Segment information
Total Sales	537,181	405,516	1,481,585	1,000,119
Contract Drilling: | Operating segment | Offshore
Segment information
Total Sales	37,669	33,711	104,018	103,758
Contract Drilling: | Operating segment | International Land
Segment information
Total Sales	63,297	$ 55,075	178,970	$ 157,863
Contract Drilling: | Inter-Segment
Segment information
Total Sales	599		634
Contract Drilling: | Inter-Segment | U.S. Land
Segment information
Total Sales	$ 599		$ 634

X

- Definition

Amount of operating income (loss) attributed to the reportable segment.

+ References

No definition available.

+ Details

Name:	hp_SegmentInformationOperatingIncomeLoss
Namespace Prefix:	hp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

+ Details

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

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

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=us-gaap_AllOtherSegmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ConsolidationItemsAxis=us-gaap_OperatingSegmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ConsolidationItemsAxis=us-gaap_IntersegmentEliminationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ProductOrServiceAxis=hp_ContractDrillingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=hp_USLandMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=hp_OffshoreMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=hp_InternationalLandMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: