XML 128 R58.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Assets Held-for-Sale and Discontinued Operations (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013
--- | --- | ---
Assets held-for-sale |  |
Assets held for sale | $ 146,467 us-gaap_AssetsHeldForSaleCurrent | $ 243,264 us-gaap_AssetsHeldForSaleCurrent
Oil and Gas |  |
Assets held-for-sale |  |
Assets held for sale | 146,467 us-gaap_AssetsHeldForSaleCurrent / us-gaap_StatementBusinessSegmentsAxis = nbr_OilAndGasMember | 239,936 us-gaap_AssetsHeldForSaleCurrent / us-gaap_StatementBusinessSegmentsAxis = nbr_OilAndGasMember
Rig Services |  |
Assets held-for-sale |  |
Assets held for sale |  | $ 3,328 us-gaap_AssetsHeldForSaleCurrent / us-gaap_StatementBusinessSegmentsAxis = nbr_RigServicesMember

X
- Definition Current assets (normally turning over within one year or one business cycle if longer) that are held for sale apart from normal operations and anticipated to be sold within one year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e1107-107759 + Details
Name: | us-gaap_AssetsHeldForSaleCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_AssetsHeldForSaleLongLivedAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=nbr_OilAndGasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=nbr_RigServicesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |