XML 62 R51.htm IDEA: XBRL DOCUMENT v3.7.0.1

Segment Information - Income by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016	Sep. 30, 2016
Segment information
Operating revenue	$ 405,283	$ 438,191	$ 773,873	$ 926,038	$ 926,038
Segment Operating Income (Loss)	(58,049)	62,203	(83,377)	117,488	117,488
Reconciliation of segment operating income to income from continuing operations before income taxes
Segment operating income (loss)	(58,049)	62,203	(83,377)	117,488	117,488
Income from asset sales	14,889	2,684	15,731	7,273
Corporate general and administrative costs and corporate depreciation	(22,512)	(23,266)	(47,190)	(44,470)
Operating income (loss) from continuing operations	(65,672)	41,621	(114,836)	80,291
Other income (expense):
Interest and dividend income	1,338	799	2,328	1,532
Interest expense	(6,084)	(5,721)	(11,139)	(10,245)
Other	174	653	561	392
Total other income (expense)	(4,572)	(4,269)	(8,250)	(8,321)
Income (loss) from continuing operations before income taxes	(70,244)	37,352	(123,086)	$ 71,970
Other
Segment information
Operating revenue	3,324	3,231	6,435		7,199
Segment Operating Income (Loss)	(1,134)	(1,349)	(3,183)		(2,653)
Reconciliation of segment operating income to income from continuing operations before income taxes
Segment operating income (loss)	(1,134)	(1,349)	(3,183)		(2,653)
Operating segment
Segment information
Operating revenue	405,491	438,401	774,289		926,467
Operating segment | Other
Segment information
Operating revenue	3,532	3,441	6,851		7,628
Inter-Segment
Segment information
Operating revenue	(208)	(210)	(416)		(429)
Inter-Segment | Other
Segment information
Operating revenue	208	210	416		429
Contract Drilling:
Segment information
Operating revenue	401,959	434,960	767,438		918,839
Segment Operating Income (Loss)	(56,915)	63,552	(80,194)		120,141
Reconciliation of segment operating income to income from continuing operations before income taxes
Segment operating income (loss)	(56,915)	63,552	(80,194)		120,141
Contract Drilling: | U.S. Land
Segment information
Operating revenue	330,967	349,283	594,603		719,088
Segment Operating Income (Loss)	(51,850)	62,521	(82,738)		118,053
Reconciliation of segment operating income to income from continuing operations before income taxes
Segment operating income (loss)	(51,850)	62,521	(82,738)		118,053
Contract Drilling: | Offshore
Segment information
Operating revenue	36,235	34,325	70,047		76,205
Segment Operating Income (Loss)	5,912	3,299	12,696		11,021
Reconciliation of segment operating income to income from continuing operations before income taxes
Segment operating income (loss)	5,912	3,299	12,696		11,021
Contract Drilling: | International Land
Segment information
Operating revenue	34,757	51,352	102,788		123,546
Segment Operating Income (Loss)	(10,977)	(2,268)	(10,152)		(8,933)
Reconciliation of segment operating income to income from continuing operations before income taxes
Segment operating income (loss)	(10,977)	(2,268)	(10,152)		(8,933)
Contract Drilling: | Operating segment
Segment information
Operating revenue	401,959	434,960	767,438		918,839
Contract Drilling: | Operating segment | U.S. Land
Segment information
Operating revenue	330,967	349,283	594,603		719,088
Contract Drilling: | Operating segment | Offshore
Segment information
Operating revenue	36,235	34,325	70,047		76,205
Contract Drilling: | Operating segment | International Land
Segment information
Operating revenue	$ 34,757	$ 51,352	$ 102,788		$ 123,546

X

- Definition

Represents the aggregate total costs of general and administrative as well as depreciation expenses of the corporate. General and administrative costs include salaries of non-sales personnel, rent, utilities, communication, etc.

+ References

No definition available.

+ Details

Name:	hp_CorporateGeneralAndAdministrativeCostsAndCorporateDepreciation
Namespace Prefix:	hp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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

- References

No definition available.

+ Details

Name:	hp_SegmentReportingReconcilingItemForOperatingProfitLossFromSegmentToConsolidatedAbstract
Namespace Prefix:	hp_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=68055307&loc=d3e2443-110228

+ Details

Name:	us-gaap_GainLossOnDispositionOfAssets1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 940
-SubTopic 20
-Section 25
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=68072869&loc=d3e41242-110953

Reference 2: 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(10))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04(15))
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(8))
-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

+ Details

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

X

- Definition

Amount of the cost of borrowed funds accounted for as interest expense.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28555-108399

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.9)
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

+ Details

Name:	us-gaap_InterestExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount before accretion (amortization) of purchase discount (premium) of interest income and dividend income on nonoperating securities.

+ 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 210.5-03.7(a),(b))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

+ Details

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

X

- Definition

The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).

+ 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 210.5-03.7)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

+ Details

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

X

- References

No definition available.

+ Details

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

X

- Definition

The net result for the period of deducting operating expenses from operating revenues.

+ References

No definition available.

+ Details

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

X

- Definition

Amount of income (expense) related to nonoperating activities, classified as other.

+ 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 210.5-03.9)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

+ Details

Name:	us-gaap_OtherNonoperatingIncomeExpense
Namespace Prefix:	us-gaap_
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: