XML 64 R54.htm IDEA: XBRL DOCUMENT
v3.19.1

Leases - (Details) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2019 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |
Lease Practical Expedient Transition Approach | true
Lease, Practical Expedients, Package [true false] | true
Lease Practical Expedient Lease Capitalization | true
Lease Practical Expedient Separate Lease Non Lease Components | false
Lease Practical Expedient Land Easement | true
Right of use assets | $ 29,798
lease payable obligation | 29,798
Adjustment to retained earnings | 0
Adjustment | Accounting Standards Update 2016-02 |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |
Right of use assets | 33,100
lease payable obligation | $ 33,100

X
- Definition Indicates (true false) whether practical expedient is elected for not assessing existing and expired land easements under Topic 842. + References No definition available. + Details
Name: | nbr_LeasePracticalExpedientLandEasement
Namespace Prefix: | nbr_
Data Type: | xbrli:booleanItemType
Balance Type: | na
Period Type: | duration

X
- Definition Indicates (true false) whether practical expedient is elected to not capitalize leases with initial terms of twelve months or less. + References No definition available. + Details
Name: | nbr_LeasePracticalExpedientLeaseCapitalization
Namespace Prefix: | nbr_
Data Type: | xbrli:booleanItemType
Balance Type: | na
Period Type: | duration

X
- Definition Indicates (true false) whether practical expedient is elected to separate lease and non-lease components for all underlying classes of leased assets. + References No definition available. + Details
Name: | nbr_LeasePracticalExpedientSeparateLeaseNonLeaseComponents
Namespace Prefix: | nbr_
Data Type: | xbrli:booleanItemType
Balance Type: | na
Period Type: | duration

X
- Definition Indicates (true false) whether practical expedient is elected to apply the transition approach as of the beginning of the period of adoption and not restate comparative periods. + References No definition available. + Details
Name: | nbr_LeasePracticalExpedientTransitionApproach
Namespace Prefix: | nbr_
Data Type: | xbrli:booleanItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of the cumulative effect on retained earnings net of related income tax effect. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22663-107794 + Details
Name: | us-gaap_CumulativeEffectOnRetainedEarningsNetOfTax1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Indicates (true false) whether practical expedients are elected for not reassessing whether any expired or existing contract is or contains lease, lease classification for expired or existing lease, and initial direct cost for any existing lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 10 -Section 65 -Paragraph 1 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=113997351&loc=SL77916155-209984 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 10 -Section 65 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=113997351&loc=SL77916155-209984 + Details
Name: | us-gaap_LeasePracticalExpedientsPackage
Namespace Prefix: | us-gaap_
Data Type: | xbrli:booleanItemType
Balance Type: | na
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_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Present value of lessee's discounted obligation for lease payments from operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977 + Details
Name: | us-gaap_OperatingLeaseLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of lessee's right to use underlying asset under operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977 + Details
Name: | us-gaap_OperatingLeaseRightOfUseAsset
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | srt_RestatementAxis=srt_RestatementAdjustmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201602Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |