XML 131 R110.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Note 22 - Commitments and Contingencies (Details Textual) - USD ($) $ in Thousands |  | 12 Months Ended
--- | --- | ---
Mar. 29, 2016 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Royalty Expense |  | $ 0 | $ 0 | $ 0
Letters of Credit Outstanding, Amount |  | 277,700 |  |
Letter Of Credit Fair Value Disclosure |  | 0 |  |
Recorded Unconditional Purchase Obligation, Total |  | 113,400 |  |
Royalty Cap Amount |  | 1,900 | 1,800 |
Royalty Cap Amount LIBOR Rate |  | 900 | 800 |
Operating Leases, Rent Expense, Total |  | 500 | 400 | 400
Capital Leased Assets, Gross, Total |  | $ 7,600 | $ 7,600 | $ 7,600
Capital Lease, Period of Payments |  | 5 years | 5 years | 5 years
Former Local Sales Representative vs. Ormat [Member] | Pending Litigation [Member] |  |  |  |
Loss Contingency, Damages Sought, Value | $ 4,800 |  |  |
Loss Contingency, Additional Damages Sought for Ormat Geothermal Products Sales in Chile, Percent | 3.75% |  |  |
Loss Contingency, Damages Sought, Ormat Geothermal Products Sales in Chile, Period | 10 years |  |  |
Minimum [Member] |  |  |  |
Percentage For Royalty To Be Paid |  | 3.50% |  |
Maximum [Member] |  |  |  |
Percentage For Royalty To Be Paid |  | 5.00% |  |
Construction In Process [Member] |  |  |  |
Recorded Unconditional Purchase Obligation, Total |  | $ 54,200 |  |
Geothermal Resource Agreement [Member] |  |  |  |
Royalty Expense |  | $ 19,400 | $ 17,100 | $ 15,400

X
- Definition The period for payments related to the capital lease agreement. + References No definition available. + Details
Name: | ora_CapitalLeasePeriodOfPayments
Namespace Prefix: | ora_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The fair value of the letter of credit. + References No definition available. + Details
Name: | ora_LetterOfCreditFairValueDisclosure
Namespace Prefix: | ora_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The percentage of the Ormat geothermal products sales in Chile award the plaintiff seeks in the legal matter. + References No definition available. + Details
Name: | ora_LossContingencyAdditionalDamagesSoughtForOrmatGeothermalProductsSalesInChilePercent
Namespace Prefix: | ora_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the loss contingency period of the Ormat geothermal product sales in Chile award in the legal matter. + References No definition available. + Details
Name: | ora_LossContingencyDamagesSoughtOrmatGeothermalProductsSalesInChilePeriod
Namespace Prefix: | ora_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage of royalties to be paid. + References No definition available. + Details
Name: | ora_PercentageForRoyaltyToBePaid
Namespace Prefix: | ora_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The amount of royalty cap. + References No definition available. + Details
Name: | ora_RoyaltyCapAmount
Namespace Prefix: | ora_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of royalty cap subject to LIBOR Rate. + References No definition available. + Details
Name: | ora_RoyaltycapAmountLIBORRate
Namespace Prefix: | ora_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount before accumulated depreciation of leased physical assets used in the normal conduct of business to produce goods and services. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=84164758&loc=d3e45014-112735 + Details
Name: | us-gaap_CapitalLeasedAssetsGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details
Name: | us-gaap_LeaseAndRentalExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
Name: | us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The value (monetary amount) of the award the plaintiff seeks in the legal matter. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14557-108349 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14435-108349 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349 + Details
Name: | us-gaap_LossContingencyDamagesSoughtValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of the recorded obligation to transfer funds in the future for fixed or minimum amounts or quantities of goods or services at fixed or minimum prices (for example, as in take-or-pay contracts or throughput contracts). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=77896938&loc=d3e25383-109308 + Details
Name: | us-gaap_RecordedUnconditionalPurchaseObligation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of expense related to royalty payments under a contractual arrangement such as payment for mineral and drilling rights and use of technology or intellectual property. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 + Details
Name: | us-gaap_RoyaltyExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | srt_LitigationCaseAxis=ora_FormerLocalSalesRepresentativeVsOrmatMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LitigationStatusAxis=us-gaap_PendingLitigationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis=ora_ConstructionInProcessMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ContingentConsiderationByTypeAxis=ora_GeothermalResourceAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |