Name:	nbr_CashProceedsFromMerger
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Data Type:	xbrli:monetaryItemType
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Period Type:	duration

The method of determining the fair value of the equity interests of the merged entity, including the number of instruments or interests received in consideration for the merger.

No definition available.

Name:	nbr_ConsiderationForMergerAsMergedEntityEquityInterests
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Data Type:	xbrli:sharesItemType
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Period Type:	duration

Represents the gain (loss) on merger transaction based on the difference between the consideration received and the carrying value of assets and liabilities of the transferred business line.

No definition available.

Name:	nbr_GainLossOnMerger
Namespace Prefix:	nbr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Represents the share holding percentage in merged entity.

No definition available.

Name:	nbr_PercentageOfEquityInterestInMergedEntity
Namespace Prefix:	nbr_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Details

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

Value of the investment at close of period. For investment in and advances to affiliates, if operations of any controlled companies are different in character from those of the company, group such affiliates within divisions and by type of activities.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 14

-Paragraph Column E

-Article 12

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 14

-Paragraph 2

-Article 12

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 14

-Paragraph 3

-Article 12

Name:	us-gaap_InvestmentsInAndAdvancesToAffiliatesAtFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The amount of cash paid during the reporting period for charges associated with the mergers.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 25

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585