XML 46 R36.htm IDEA: XBRL DOCUMENT
v3.19.2

Nature of Operations (Details) | 6 Months Ended
--- | ---
Jun. 30, 2019 item country
Nature of Operations |
Number of countries company has actively marketed rigs for land based drilling operations | country | 25
Actively marketed rigs for offshore based drilling operations | 33
United States and Canada |
Nature of Operations |
Actively marketed rigs for land based drilling operations | 374
Countries Other Than United States and Canada |
Nature of Operations |
Actively marketed rigs for land based drilling operations | 18

X
- Definition Number of actively marketed rigs for land based drilling operations. + References No definition available. + Details
Name: | nbr_MarketedRigsForLandBasedDrillingOperations
Namespace Prefix: | nbr_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of actively marketed rigs for offshore drilling operations. + References No definition available. + Details
Name: | nbr_MarketedRigsForOffshoreDrillingOperations
Namespace Prefix: | nbr_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition n/a + References No definition available. + Details
Name: | nbr_NatureOfOperationsLineItems
Namespace Prefix: | nbr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of countries in which the entity operates as of balance sheet date. + References No definition available. + Details
Name: | us-gaap_NumberOfCountriesInWhichEntityOperates
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | srt_StatementGeographicalAxis=nbr_UnitedStatesAndCanadaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=nbr_CountriesOtherThanUnitedStatesAndCanadaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |