$ORA
ORMAT TECHNOLOGIES, INC. Stock $ora

$ora Overview Financials Valuation SEC Filings Company Website

2019 Form 10-K Financial Statement

#000143774920004072 Filed on March 02, 2020

Income Statement

Concept	2019	2018 Q4	2018 Q3
Revenue	$746.0M	$190.5M	$166.5M
YoY Change	3.72%	14.49%	5.91%
Cost Of Revenue	$476.7M	$99.66M	$117.7M
YoY Change	6.21%	-2.31%	20.1%
Gross Profit	$269.3M	$90.81M	$48.79M
YoY Change	-0.41%	41.1%	-17.57%
Gross Profit Margin	36.1%	47.68%	29.31%
Selling, General & Admin	$70.88M	$8.242M	$22.18M
YoY Change	4.93%	-38.36%	52.92%
% of Gross Profit	26.32%	9.08%	45.47%
Research & Development	$4.647M	$1.118M	$706.0K
YoY Change	11.09%	41.7%	-1.4%
% of Gross Profit	1.73%	1.23%	1.45%
Depreciation & Amortization	$148.8M	$33.80M	$34.80M
YoY Change	12.5%	-0.88%	29.37%
% of Gross Profit	55.24%	37.22%	71.32%
Operating Expenses	$75.53M	$9.360M	$22.89M
YoY Change	5.29%	-33.9%	50.36%
Operating Profit	$193.8M	$67.98M	$25.90M
YoY Change	4.69%	40.46%	-41.09%
Interest Expense	$80.38M	$22.03M	$18.70M
YoY Change	13.34%	69.66%	59.94%
% of Operating Profit	41.48%	32.41%	72.2%
Other Income/Expense, Net	$880.0K	$117.0K	$309.0K
YoY Change	-88.69%	875.0%	-119.41%
Pretax Income	$14.19M	$48.29M	$11.41M
YoY Change	0.64%	20.66%	-65.89%
Income Tax	$45.61M	$31.39M	$1.184M
% Of Pretax Income	321.51%	64.99%	10.38%
Net Earnings	$88.10M	$18.22M	$10.58M
YoY Change	-10.08%	-71.8%	-55.84%
Net Earnings / Revenue	11.81%	9.57%	6.36%
Basic Earnings Per Share	$1.73	$0.36	$0.21
Diluted Earnings Per Share	$1.72	$0.36	$0.21
COMMON SHARES
Basic Shares Outstanding	50.87M	50.69M	50.65M
Diluted Shares Outstanding	51.23M	50.94M	50.96M

Balance Sheet

Concept	2019	2018 Q4	2018 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$71.20M	$98.80M	$72.00M
YoY Change	-27.94%	106.69%	-6.74%
Cash & Equivalents	$71.20M	$98.80M	$71.97M
Short-Term Investments
Other Short-Term Assets	$94.60M	$130.1M	$127.6M
YoY Change	-27.29%	46.02%	51.36%
Inventory	$73.30M	$45.02M	$37.44M
Prepaid Expenses
Receivables	$154.5M	$137.6M	$118.7M
Other Receivables	$22.10M	$19.39M	$18.33M
Total Short-Term Assets	$415.7M	$473.1M	$421.8M
YoY Change	-12.13%	47.08%	26.95%
LONG-TERM ASSETS
Property, Plant & Equipment	$2.380B	$1.960B	$1.836B
YoY Change	7.12%	12.96%	13.26%
Goodwill		$19.95M	$40.11M
YoY Change		-5.17%	94.08%
Intangibles		$199.9M	$203.4M
YoY Change		133.99%	134.29%
Long-Term Investments	$81.10M	$72.00M	$67.70M
YoY Change	12.64%	111.14%	166.54%
Other Assets	$167.8M	$135.2M	$139.4M
YoY Change	24.11%	1.35%	108.68%
Total Long-Term Assets	$2.835B	$2.648B	$2.638B
YoY Change	7.04%	15.03%	21.47%
TOTAL ASSETS
Total Short-Term Assets	$415.7M	$473.1M	$421.8M
Total Long-Term Assets	$2.835B	$2.648B	$2.638B
Total Assets	$3.251B	$3.121B	$3.060B
YoY Change	4.14%	18.96%	22.2%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$73.30M	$116.4M	$105.4M
YoY Change	30.2%	-24.32%	2.03%
Accrued Expenses	$57.90M
YoY Change	14.2%
Deferred Revenue		$18.40M
YoY Change		-9.09%
Short-Term Debt	$90.60M	$159.0M	$209.5M
YoY Change	-43.02%	208.74%	517.99%
Long-Term Debt Due	$138.6M	$68.20M	$59.80M
YoY Change	103.23%	17.99%	19.12%
Total Short-Term Liabilities	$376.5M	$361.9M	$396.4M
YoY Change	4.03%	27.74%	104.89%
LONG-TERM LIABILITIES
Long-Term Debt	$1.023B	$1.041B	$959.6M
YoY Change	-1.69%	29.39%	16.68%
Other Long-Term Liabilities	$229.1M	$16.09M	$22.35M
YoY Change	12.47%	-14.67%	16.91%
Total Long-Term Liabilities	$1.252B	$16.09M	$22.35M
YoY Change	0.63%	-14.67%	16.91%
TOTAL LIABILITIES
Total Short-Term Liabilities	$376.5M	$361.9M	$396.4M
Total Long-Term Liabilities	$1.252B	$16.09M	$22.35M
Total Liabilities	$1.858B	$1.668B	$1.621B
YoY Change	3.14%	26.17%	30.78%
SHAREHOLDERS EQUITY
Retained Earnings		$422.2M	$410.9M
YoY Change		29.02%	41.89%
Common Stock		$901.4M	$896.2M
YoY Change		1.42%	0.02%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.392B	$1.320B	$1.306B
YoY Change
Total Liabilities & Shareholders Equity	$3.251B	$3.121B	$3.060B
YoY Change	4.14%	18.96%	22.2%

Cashflow Statement

Concept	2019	2018 Q4	2018 Q3
OPERATING ACTIVITIES
Net Income	$88.10M	$18.22M	$10.58M
YoY Change	-10.08%	-71.8%	-55.84%
Depreciation, Depletion And Amortization	$148.8M	$33.80M	$34.80M
YoY Change	12.5%	-0.88%	29.37%
Cash From Operating Activities	$236.5M	$42.70M	$36.10M
YoY Change	62.18%	-46.02%	-30.98%
INVESTING ACTIVITIES
Capital Expenditures	$280.0M	-$57.80M	$67.74M
YoY Change	8.3%	-29.34%	167.04%
Acquisitions	$0.00
YoY Change	-100.0%
Other Investing Activities	$0.00	$7.000M	$6.200M
YoY Change		-167.31%	-147.33%
Cash From Investing Activities	-$254.5M	-$50.80M	-$55.40M
YoY Change	-25.67%	-44.9%	-25.54%
FINANCING ACTIVITIES
Cash Dividend Paid	$22.40M
YoY Change	-16.42%
Common Stock Issuance & Retirement, Net	$0.00
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-$5.765M	31.30M	31.60M
YoY Change	-102.3%	-416.16%	-221.07%
NET CHANGE
Cash From Operating Activities	$236.5M	42.70M	36.10M
Cash From Investing Activities	-$254.5M	-50.80M	-55.40M
Cash From Financing Activities	-$5.765M	31.30M	31.60M
Net Change In Cash	-$24.39M	23.20M	12.30M
YoY Change	-145.28%	-200.87%	-125.52%
FREE CASH FLOW
Cash From Operating Activities	$236.5M	$42.70M	$36.10M
Capital Expenditures	$280.0M	-$57.80M	$67.74M
Free Cash Flow	-$43.49M	$100.5M	-$31.64M
YoY Change	-61.41%	-37.54%	-217.47%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2018Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	200000000
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CY2018Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	50699781
CY2017Q4	ora	Finite Lived Intangible Assets Write Off FiniteLivedIntangibleAssetsWriteOff	0	USD
CY2019Q4	ora	Debt To Earnings Before Interest Tax Depreciation And Amortization Ratio DebtToEarningsBeforeInterestTaxDepreciationAndAmortizationRatio	2.99	pure
CY2019Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
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CY2019	ora	Grants Received To Offset Exploration And Development Costs Incurred GrantsReceivedToOffsetExplorationAndDevelopmentCostsIncurred	0	USD
CY2018	ora	Grants Received To Offset Exploration And Development Costs Incurred GrantsReceivedToOffsetExplorationAndDevelopmentCostsIncurred	0	USD
CY2017	ora	Grants Received To Offset Exploration And Development Costs Incurred GrantsReceivedToOffsetExplorationAndDevelopmentCostsIncurred	0	USD
CY2019Q4	ora	Finite Lived Intangible Assets Write Off FiniteLivedIntangibleAssetsWriteOff	0	USD
CY2018Q4	ora	Finite Lived Intangible Assets Write Off FiniteLivedIntangibleAssetsWriteOff	0	USD
CY2018	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	24000	USD
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CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	71173000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	98802000	USD
CY2019Q4	us-gaap	Restricted Cash And Investments Current RestrictedCashAndInvestmentsCurrent	81937000	USD
CY2018Q4	us-gaap	Restricted Cash And Investments Current RestrictedCashAndInvestmentsCurrent	78693000	USD
CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	154525000	USD
CY2018Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	137581000	USD
CY2019Q4	us-gaap	Other Receivables Net Current OtherReceivablesNetCurrent	22048000	USD
CY2018Q4	us-gaap	Other Receivables Net Current OtherReceivablesNetCurrent	19393000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	34949000	USD
CY2018Q4	us-gaap	Inventory Net InventoryNet	45024000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	38365000	USD
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CY2019Q4	us-gaap	Goodwill Goodwill	20140000	USD
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CY2019Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
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CY2019Q4	us-gaap	Common Stock Value CommonStockValue	51000	USD
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CY2019	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	476721000	USD
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CY2017	us-gaap	Gross Profit GrossProfit	268452000	USD
CY2019	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	4647000	USD
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CY2017	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	17878000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	880000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	7779000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-1666000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	137303000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	137181000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	170730000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	45613000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	34733000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	21664000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	1853000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	7663000	USD
CY2017	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-1957000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	93543000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	110111000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	147109000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	93543000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	110111000	USD
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	5448000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	12145000	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	14695000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	88095000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	147109000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-1810000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-1831000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	3440000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-3417000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	2235000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	804000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	75000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	81000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	135000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	31000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	57000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	73000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	88360000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	110539000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	151415000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	5120000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	11666000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	15532000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	83240000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	98873000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	135883000	USD
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.73
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.93
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.64
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.72
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.92
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.61
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50867000
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50643000
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50110000
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	51227000
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50969000
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50769000
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1168272000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	8760000	USD
CY2017	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	16112000	USD
CY2017	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	21313000	USD
CY2017	us-gaap	Dividends Common Stock DividendsCommonStock	20511000	USD
CY2017	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	146057000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	3440000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	135000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	804000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	73000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1295700000	USD
CY2017Q4	us-gaap	Cumulative Effect Of New Accounting Principle In Period Of Adoption CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	23835000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest Adjusted Balance1 StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	1319535000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	10218000	USD
CY2018	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	0	USD
CY2018	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	10972000	USD
CY2018	us-gaap	Dividends Common Stock DividendsCommonStock	26834000	USD
CY2018	ora	Tax Effect Of Payments To Acquire Additional Interest In Subsidiaries TaxEffectOfPaymentsToAcquireAdditionalInterestInSubsidiaries	2367000	USD
CY2018	us-gaap	Noncontrolling Interest Increase From Business Combination NoncontrollingInterestIncreaseFromBusinessCombination	34898000	USD
CY2018	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	109121000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-1831000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	81000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	2235000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	57000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1445096000	USD
CY2018Q4	us-gaap	Cumulative Effect Of New Accounting Principle In Period Of Adoption CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	-58000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest Adjusted Balance1 StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	1445038000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	9358000	USD
CY2019	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	2429000	USD
CY2019	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	8329000	USD
CY2019	us-gaap	Dividends Common Stock DividendsCommonStock	22386000	USD
CY2019	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	92411000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-1810000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	75000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-3417000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	31000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1515410000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	93543000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	110111000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	147109000	USD
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	148761000	USD
CY2018	us-gaap	Depreciation And Amortization DepreciationAndAmortization	132233000	USD
CY2017	us-gaap	Depreciation And Amortization DepreciationAndAmortization	115146000	USD
CY2019	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	2709000	USD
CY2018	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	2474000	USD
CY2017	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	1874000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	9358000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	10218000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	8760000	USD
CY2019	ora	Amortization Of Deferred Income AmortizationOfDeferredIncome	-2685000	USD
CY2018	ora	Amortization Of Deferred Income AmortizationOfDeferredIncome	-2685000	USD
CY2017	ora	Amortization Of Deferred Income AmortizationOfDeferredIncome	-2685000	USD
CY2019	ora	Income Attributable To Sale Of Equity Interests Net Of Interest Expense IncomeAttributableToSaleOfEquityInterestsNetOfInterestExpense	10084000	USD
CY2018	ora	Income Attributable To Sale Of Equity Interests Net Of Interest Expense IncomeAttributableToSaleOfEquityInterestsNetOfInterestExpense	8609000	USD
CY2017	ora	Income Attributable To Sale Of Equity Interests Net Of Interest Expense IncomeAttributableToSaleOfEquityInterestsNetOfInterestExpense	11956000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	1853000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	7663000	USD
CY2017	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-1957000	USD
CY2019	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	1402000	USD
CY2018	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-2032000	USD
CY2017	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	1473000	USD
CY2019	us-gaap	Exploration Abandonment And Impairment Expense ExplorationAbandonmentAndImpairmentExpense	0	USD
CY2018	us-gaap	Exploration Abandonment And Impairment Expense ExplorationAbandonmentAndImpairmentExpense	126000	USD
CY2017	us-gaap	Exploration Abandonment And Impairment Expense ExplorationAbandonmentAndImpairmentExpense	1796000	USD
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2018	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	13464000	USD
CY2017	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2019	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	1016000	USD
CY2018	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	-1186000	USD
CY2017	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	1746000	USD
CY2019	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	27896000	USD
CY2018	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	19360000	USD
CY2018	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	1185000	USD
CY2017	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	-11253000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-5500000	USD
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	9318000	USD
CY2017	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	1070000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-3452000	USD
CY2017	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-41147000	USD
CY2019	ora	Increase Decrease In Unrecognized Tax Benefits IncreaseDecreaseInUnrecognizedTaxBenefits	-2874000	USD
CY2018	ora	Increase Decrease In Unrecognized Tax Benefits IncreaseDecreaseInUnrecognizedTaxBenefits	-2879000	USD
CY2017	ora	Increase Decrease In Unrecognized Tax Benefits IncreaseDecreaseInUnrecognizedTaxBenefits	-3270000	USD
CY2019	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-574000	USD
CY2018	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-402000	USD
CY2017	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-356000	USD
CY2019	us-gaap	Insured Event Gain Loss InsuredEventGainLoss	-0	USD
CY2018	us-gaap	Insured Event Gain Loss InsuredEventGainLoss	4463000	USD
CY2017	us-gaap	Insured Event Gain Loss InsuredEventGainLoss	-0	USD
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-914000	USD
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-100000	USD
CY2017	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-737000	USD
CY2019	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	15133000	USD
CY2018	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	29928000	USD
CY2017	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	24040000	USD
CY2019	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	-3765000	USD
CY2018	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	11172000	USD
CY2017	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-208000	USD
CY2019	ora	Operating Lease Right Of Use Asset Operating Cash Flow Effect OperatingLeaseRightOfUseAssetOperatingCashFlowEffect	8167000	USD
CY2018	ora	Operating Lease Right Of Use Asset Operating Cash Flow Effect OperatingLeaseRightOfUseAssetOperatingCashFlowEffect	0	USD
CY2017	ora	Operating Lease Right Of Use Asset Operating Cash Flow Effect OperatingLeaseRightOfUseAssetOperatingCashFlowEffect	0	USD
CY2019	us-gaap	Increase Decrease In Deposit Other Assets IncreaseDecreaseInDepositOtherAssets	22525000	USD
CY2018	us-gaap	Increase Decrease In Deposit Other Assets IncreaseDecreaseInDepositOtherAssets	-18000	USD
CY2017	us-gaap	Increase Decrease In Deposit Other Assets IncreaseDecreaseInDepositOtherAssets	2570000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	8738000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-56724000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	51641000	USD
CY2019	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-15647000	USD
CY2018	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-1839000	USD
CY2017	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-11389000	USD
CY2019	us-gaap	Increase Decrease In Restructuring Reserve IncreaseDecreaseInRestructuringReserve	757000	USD
CY2018	us-gaap	Increase Decrease In Restructuring Reserve IncreaseDecreaseInRestructuringReserve	-3147000	USD
CY2017	us-gaap	Increase Decrease In Restructuring Reserve IncreaseDecreaseInRestructuringReserve	2541000	USD
CY2019	ora	Increase Decrease In Operating Lease Liabilities IncreaseDecreaseInOperatingLeaseLiabilities	-8405000	USD
CY2018	ora	Increase Decrease In Operating Lease Liabilities IncreaseDecreaseInOperatingLeaseLiabilities	0	USD
CY2017	ora	Increase Decrease In Operating Lease Liabilities IncreaseDecreaseInOperatingLeaseLiabilities	0	USD
CY2019	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-617000	USD
CY2018	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-11244000	USD
CY2017	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-2285000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	236493000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	145822000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	245575000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	279986000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	258521000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	259234000	USD
CY2019	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	35435000	USD
CY2018	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	10427000	USD
CY2017	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	0	USD
CY2019	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	10674000	USD
CY2018	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	3800000	USD
CY2017	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	46318000	USD
CY2019	us-gaap	Payments To Acquire Additional Interest In Subsidiaries PaymentsToAcquireAdditionalInterestInSubsidiaries	-0	USD
CY2018	us-gaap	Payments To Acquire Additional Interest In Subsidiaries PaymentsToAcquireAdditionalInterestInSubsidiaries	-0	USD
CY2017	us-gaap	Payments To Acquire Additional Interest In Subsidiaries PaymentsToAcquireAdditionalInterestInSubsidiaries	2400000	USD
CY2019	ora	Payments For Proceeds From Acquire Additional Interest In Subsidiaries PaymentsForProceedsFromAcquireAdditionalInterestInSubsidiaries	0	USD
CY2018	ora	Payments For Proceeds From Acquire Additional Interest In Subsidiaries PaymentsForProceedsFromAcquireAdditionalInterestInSubsidiaries	2367000	USD
CY2017	ora	Payments For Proceeds From Acquire Additional Interest In Subsidiaries PaymentsForProceedsFromAcquireAdditionalInterestInSubsidiaries	-1932000	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	-0	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	95093000	USD
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	35300000	USD
CY2019	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	-0	USD
CY2018	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	-0	USD
CY2017	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	868000	USD
CY2019	ora	Increase Decrease In Severance Pay Fund Asset Net IncreaseDecreaseInSeverancePayFundAssetNet	-687000	USD
CY2018	ora	Increase Decrease In Severance Pay Fund Asset Net IncreaseDecreaseInSeverancePayFundAssetNet	-2186000	USD
CY2017	ora	Increase Decrease In Severance Pay Fund Asset Net IncreaseDecreaseInSeverancePayFundAssetNet	-526000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-254538000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-342434000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-345526000	USD
CY2019	ora	Proceeds From Sale Of Membership Interest To Noncontrolling Interest ProceedsFromSaleOfMembershipInterestToNoncontrollingInterest	0	USD
CY2018	ora	Proceeds From Sale Of Membership Interest To Noncontrolling Interest ProceedsFromSaleOfMembershipInterestToNoncontrollingInterest	3174000	USD
CY2017	ora	Proceeds From Sale Of Membership Interest To Noncontrolling Interest ProceedsFromSaleOfMembershipInterestToNoncontrollingInterest	0	USD
CY2019	ora	Proceeds From Issuance Of Longterm Loans Net ProceedsFromIssuanceOfLongtermLoansNet	132847000	USD
CY2018	ora	Proceeds From Issuance Of Longterm Loans Net ProceedsFromIssuanceOfLongtermLoansNet	214700000	USD
CY2017	ora	Proceeds From Issuance Of Longterm Loans Net ProceedsFromIssuanceOfLongtermLoansNet	0	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	2429000	USD
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	0	USD
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	16111000	USD
CY2019	ora	Proceeds From Sale Of Limited Liability Company Interest Net Of Transaction Costs ProceedsFromSaleOfLimitedLiabilityCompanyInterestNetOfTransactionCosts	58289000	USD
CY2018	ora	Proceeds From Sale Of Limited Liability Company Interest Net Of Transaction Costs ProceedsFromSaleOfLimitedLiabilityCompanyInterestNetOfTransactionCosts	32175000	USD
CY2017	ora	Proceeds From Sale Of Limited Liability Company Interest Net Of Transaction Costs ProceedsFromSaleOfLimitedLiabilityCompanyInterestNetOfTransactionCosts	0	USD
CY2019	us-gaap	Early Repayment Of Senior Debt EarlyRepaymentOfSeniorDebt	21073000	USD
CY2018	us-gaap	Early Repayment Of Senior Debt EarlyRepaymentOfSeniorDebt	-0	USD
CY2017	us-gaap	Early Repayment Of Senior Debt EarlyRepaymentOfSeniorDebt	14270000	USD
CY2019	us-gaap	Proceeds From Issuance Of Commercial Paper ProceedsFromIssuanceOfCommercialPaper	50000000	USD
CY2018	us-gaap	Proceeds From Issuance Of Commercial Paper ProceedsFromIssuanceOfCommercialPaper	0	USD
CY2017	us-gaap	Proceeds From Issuance Of Commercial Paper ProceedsFromIssuanceOfCommercialPaper	0	USD
CY2019	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	3346000	USD
CY2019	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	1450850000	USD
CY2018	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	4097000000	USD
CY2017	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	1097500000	USD
CY2019	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	1569300000	USD
CY2018	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	3989500000	USD
CY2017	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	1046000000	USD
CY2018	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	4134000	USD
CY2017	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	2017000	USD
CY2019	ora	Payments For Achievement Of Production Goal PaymentsForAchievementOfProductionGoal	-0	USD
CY2018	ora	Payments For Achievement Of Production Goal PaymentsForAchievementOfProductionGoal	-0	USD
CY2017	ora	Payments For Achievement Of Production Goal PaymentsForAchievementOfProductionGoal	8032000	USD
CY2019	ora	Repayments Of Longterm Loans RepaymentsOfLongtermLoans	72708000	USD
CY2018	ora	Repayments Of Longterm Loans RepaymentsOfLongtermLoans	62774000	USD
CY2017	ora	Repayments Of Longterm Loans RepaymentsOfLongtermLoans	66223000	USD
CY2019	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	9730000	USD
CY2018	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	13106000	USD
CY2017	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	21313000	USD
CY2019	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	3164000	USD
CY2018	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	2551000	USD
CY2017	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1871000	USD
CY2019	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	5165000	USD
CY2018	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	5287000	USD
CY2017	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	5290000	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	22386000	USD
CY2018	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	26834000	USD
CY2017	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	20511000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-5765000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	251131000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-67882000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-575000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-660000	USD
CY2017	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	0	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-24385000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	53859000	USD
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-167833000	USD
CY2019Q4	ora	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Restricted Cash And Cash Equivalents BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRestrictedCashAndCashEquivalents	0	USD
CY2018Q4	ora	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Restricted Cash And Cash Equivalents BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRestrictedCashAndCashEquivalents	26993000	USD
CY2017Q4	ora	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Restricted Cash And Cash Equivalents BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRestrictedCashAndCashEquivalents	0	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	177495000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	96643000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	264476000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	153110000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	177495000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	96643000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	61628000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	53864000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	40484000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1649000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	18028000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	21878000	USD
CY2019	ora	Increase Decrease In Accounts Payable Related To Purchases Of Property Plant And Equipment IncreaseDecreaseInAccountsPayableRelatedToPurchasesOfPropertyPlantAndEquipment	9423000	USD
CY2018	ora	Increase Decrease In Accounts Payable Related To Purchases Of Property Plant And Equipment IncreaseDecreaseInAccountsPayableRelatedToPurchasesOfPropertyPlantAndEquipment	-6878000	USD
CY2017	ora	Increase Decrease In Accounts Payable Related To Purchases Of Property Plant And Equipment IncreaseDecreaseInAccountsPayableRelatedToPurchasesOfPropertyPlantAndEquipment	4484000	USD
CY2019	ora	Rightofuse Asset Obtained In Exchange For Lease Liability RightofuseAssetObtainedInExchangeForLeaseLiability	11626000	USD
CY2018	ora	Rightofuse Asset Obtained In Exchange For Lease Liability RightofuseAssetObtainedInExchangeForLeaseLiability	8584000	USD
CY2017	ora	Rightofuse Asset Obtained In Exchange For Lease Liability RightofuseAssetObtainedInExchangeForLeaseLiability	0	USD
CY2019	ora	Noncash Transfer Of Asset Retirement Obligations NoncashTransferOfAssetRetirementObligations	8334000	USD
CY2018	ora	Noncash Transfer Of Asset Retirement Obligations NoncashTransferOfAssetRetirementObligations	881000	USD
CY2017	ora	Noncash Transfer Of Asset Retirement Obligations NoncashTransferOfAssetRetirementObligations	1888000	USD
CY2018	us-gaap	Write Off Of Deferred Debt Issuance Cost WriteOffOfDeferredDebtIssuanceCost	0.0	USD
CY2017	us-gaap	Write Off Of Deferred Debt Issuance Cost WriteOffOfDeferredDebtIssuanceCost	600000	USD
CY2019	us-gaap	Write Off Of Deferred Debt Issuance Cost WriteOffOfDeferredDebtIssuanceCost	0.0	USD
CY2017	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	20500000	USD
CY2017	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.44
CY2019	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	22400000	USD
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.44
CY2018	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	26800000	USD
CY2018	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.53
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	71173000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	98802000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	47818000	USD
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	81937000	USD
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	78693000	USD
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	48825000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	153110000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	177495000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	96643000	USD
CY2019	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;text-indent:14pt;"><i><b>Concentration of credit risk</b></i></p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;text-indent:24pt;"> </p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;text-indent:24pt;">Financial instruments which potentially subject the Company to concentration of credit risk consist principally of temporary cash investments and accounts receivable.</p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;text-indent:24pt;"> </p> <p style="font-family: "Times New Roman", Times, serif; font-size: 10pt; margin: 0pt; text-align: justify; text-indent: 24pt;">The Company places its temporary cash investments with high credit quality financial institutions located in the U.S. and in foreign countries. At <em style="font-weight: inherit; font-style: normal;"> December 31, 2019 </em>and <em style="font-weight: inherit; font-style: normal;">2018,</em> the Company had deposits totaling $12.9 million and $31.3 million, respectively, in <em style="font-weight: inherit; font-style: normal;">ten</em> United States financial institutions that were federally insured up to <em style="font-weight: inherit; font-style: normal;">$250,000</em> per account. At <em style="font-weight: inherit; font-style: normal;"> December 31, 2019 </em>and <em style="font-weight: inherit; font-style: normal;">2018,</em> the Company’s deposits in foreign countries of approximately $84.8 million and $93.9 million, respectively, were <em style="font-weight: inherit; font-style: normal;">not</em> insured.</p> <p style="font-family: "Times New Roman", Times, serif; font-size: 10pt; margin: 0pt;"> </p> <p style="font-family: "Times New Roman", Times, serif; font-size: 10pt; margin: 0pt; text-align: justify; text-indent: 24pt;">At <em style="font-weight: inherit; font-style: normal;"> December 31, 2019 </em>and <em style="font-weight: inherit; font-style: normal;">2018,</em> accounts receivable related to operations in foreign countries amounted to approximately $118.8 million and $102.0 million, respectively. At <em style="font-weight: inherit; font-style: normal;"> December 31, 2019 </em>and <em style="font-weight: inherit; font-style: normal;">2018,</em> accounts receivable from the Company’s major customers (see Note <em style="font-weight: inherit; font-style: normal;">19</em>) amounted to approximately 58% and 56%, respectively, of the Company’s accounts receivable.</p> <p style="font-family: "Times New Roman", Times, serif; font-size: 10pt; margin: 0pt;"> </p> <p style="font-family: "Times New Roman", Times, serif; font-size: 10pt; margin: 0pt; text-align: justify; text-indent: 24pt;">The Company has historically been able to collect substantially all of its receivable balances. As of <em style="font-weight: inherit; font-style: normal;"> December 31, 2019, </em>the amount overdue from KPLC in Kenya was $40.7 million of which $24.2 million was paid in <em style="font-weight: inherit; font-style: normal;"> January </em>and <em style="font-weight: inherit; font-style: normal;"> February </em>of <em style="font-weight: inherit; font-style: normal;">2020.</em> These amounts represent an average of 70 days overdue, an increase of 10 days from <em style="font-weight: inherit; font-style: normal;"> September 30, 2019. </em>In Honduras, the Company has been able to collect its current charges from Empresa Nacional de Energía Eléctrica (“ENEE”) starting in <em style="font-weight: inherit; font-style: normal;"> May 2019, </em>however, as of <em style="font-weight: inherit; font-style: normal;"> December 31, 2019, </em>the amount overdue relating to the period from <em style="font-weight: inherit; font-style: normal;"> October 2018 </em>to <em style="font-weight: inherit; font-style: normal;"> April 2019 </em>was $20.1 million, <span style="-sec-ix-hidden:c56704204">none</span> of which has been paid to date. Due to obligations of the Honduran government to support the Company, the Company believes it will be able to collect all past due amounts.</p> <p style="font-family: "Times New Roman", Times, serif; font-size: 10pt; margin: 0pt;"> </p> <p style="font-family: "Times New Roman", Times, serif; font-size: 10pt; margin: 0pt; text-align: justify; text-indent: 24pt;">Additionally, Pacific Gas and Electric Corporation (“PG&E Corporation”) and its subsidiary Pacific Gas and Electric Company (“PG&E”), which accounted for 1.5%, 1.9% and 2.0% of the Company's total revenues for the years ended <em style="font-weight: inherit; font-style: normal;"> December 31, 2019, </em><em style="font-weight: inherit; font-style: normal;">2018</em> and <em style="font-weight: inherit; font-style: normal;">2017,</em> respectively, are facing extraordinary challenges relating to a series of catastrophic wildfires that occurred in Northern California in <em style="font-weight: inherit; font-style: normal;">2017</em> and <em style="font-weight: inherit; font-style: normal;">2018.</em> As a result, on <em style="font-weight: inherit; font-style: normal;"> January </em><em style="font-weight: inherit; font-style: normal;">29,</em> <em style="font-weight: inherit; font-style: normal;">2019,</em> PG&E Corporation and its subsidiary, PG&E, voluntarily filed for reorganization under Chapter <em style="font-weight: inherit; font-style: normal;">11</em> of the U.S. Bankruptcy Code. The Company is closely monitoring its PG&E balance to ensure cash receipts are received on a timely basis each month. As of <em style="font-weight: inherit; font-style: normal;"> December 31, 2019, </em>the outstanding balance relates to the current <em style="font-weight: inherit; font-style: normal;"> December 2019 </em>invoices which were paid in <em style="font-weight: inherit; font-style: normal;"> January 2020.</em></p>
CY2019Q4	us-gaap	Cash Fdic Insured Amount CashFDICInsuredAmount	12900000	USD
CY2018Q4	us-gaap	Cash Fdic Insured Amount CashFDICInsuredAmount	31300000	USD
CY2019Q4	us-gaap	Cash Uninsured Amount CashUninsuredAmount	84800000	USD
CY2018Q4	us-gaap	Cash Uninsured Amount CashUninsuredAmount	93900000	USD
CY2019	us-gaap	Property Plant And Equipment Impairment PropertyPlantAndEquipmentImpairment	<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;text-indent:14pt;"><i><b>Property, plant and equipment, net</b></i></p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;text-indent:24pt;"> </p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;text-indent:24pt;">Property, plant and equipment are stated at cost. All costs associated with the acquisition, development and construction of power plants operated by the Company are capitalized. Major improvements are capitalized and repairs and maintenance (including major maintenance) costs are expensed. Power plants operated by the Company, which include geothermal wells and exploration and resource development costs, are depreciated using the straight-line method over their estimated useful lives, which range from 15 to 30 years. The other assets are depreciated using the straight-line method over the following estimated useful lives of the assets:</p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;text-indent:24pt;"> </p> <table border="0" cellpadding="0" cellspacing="0" style="width:100%;text-indent:0;font-family:'Times New Roman', Times, serif;font-size:10pt;"> <tbody> <tr style="background-color: rgb(204, 238, 255);"> <td style="vertical-align: bottom; width: 84%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Buildings (in years)</p> </td> <td style="vertical-align:bottom;width:1%;"> </td> <td style="vertical-align: bottom; width: 6%;"><em style="font-weight: inherit; font-style: normal;"> </em><p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"> </p> </td> <td style="vertical-align: bottom; width: 3%; text-align: center;">25</td> <td style="vertical-align: bottom; width: 6%;"><em style="font-weight: inherit; font-style: normal;"> </em></td> </tr> <tr style="background-color: rgb(255, 255, 255);"> <td style="vertical-align: bottom; width: 84%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Leasehold improvements (in years)</p> </td> <td style="vertical-align:bottom;width:1%;"> </td> <td style="vertical-align: bottom; width: 6%;"> <p style="font-family: "Times New Roman", Times, serif; font-size: 10pt; margin: 0pt; text-align: right;">15</p> </td> <td style="vertical-align: bottom; width: 3%; text-align: center;"><em style="font-weight: inherit; font-style: normal;">-</em></td> <td style="vertical-align: bottom; width: 6%;">20</td> </tr> <tr style="background-color: rgb(204, 238, 255);"> <td style="vertical-align: bottom; width: 84%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Machinery and equipment — manufacturing and drilling (in years)</p> </td> <td style="vertical-align:bottom;width:1%;"> </td> <td style="vertical-align: bottom; width: 6%;"><em style="font-weight: inherit; font-style: normal;"> </em><p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"> </p> </td> <td style="vertical-align: bottom; width: 3%; text-align: center;">10</td> <td style="vertical-align: bottom; width: 6%;"><em style="font-weight: inherit; font-style: normal;"> </em></td> </tr> <tr style="background-color: rgb(255, 255, 255);"> <td style="vertical-align: bottom; width: 84%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Machinery and equipment — computers (in years)</p> </td> <td style="vertical-align:bottom;width:1%;"> </td> <td style="vertical-align: bottom; width: 6%;"> <p style="font-family: "Times New Roman", Times, serif; font-size: 10pt; margin: 0pt; text-align: right;">3</p> </td> <td style="vertical-align: bottom; width: 3%; text-align: center;"><em style="font-weight: inherit; font-style: normal;">-</em></td> <td style="vertical-align: bottom; width: 6%;">5</td> </tr> <tr style="background-color: rgb(204, 238, 255);"> <td style="vertical-align: bottom; width: 84%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Office equipment — furniture and fixtures (in years)</p> </td> <td style="vertical-align:bottom;width:1%;"> </td> <td style="vertical-align: bottom; width: 6%;"> <p style="font-family: "Times New Roman", Times, serif; font-size: 10pt; margin: 0pt; text-align: right;">5</p> </td> <td style="vertical-align: bottom; width: 3%; text-align: center;"><em style="font-weight: inherit; font-style: normal;">-</em></td> <td style="vertical-align: bottom; width: 6%;">15</td> </tr> <tr style="background-color: rgb(255, 255, 255);"> <td style="vertical-align: bottom; width: 84%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Office equipment — other (in years)</p> </td> <td style="vertical-align:bottom;width:1%;"> </td> <td style="vertical-align: bottom; width: 6%;"> <p style="font-family: "Times New Roman", Times, serif; font-size: 10pt; margin: 0pt; text-align: right;">5</p> </td> <td style="vertical-align: bottom; width: 3%; text-align: center;"><em style="font-weight: inherit; font-style: normal;">-</em></td> <td style="vertical-align: bottom; width: 6%;">10</td> </tr> <tr style="background-color: rgb(204, 238, 255);"> <td style="vertical-align: bottom; width: 84%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Vehicles (in years)</p> </td> <td style="vertical-align:bottom;width:1%;"> </td> <td style="vertical-align: bottom; width: 6%;"> <p style="font-family: "Times New Roman", Times, serif; font-size: 10pt; margin: 0pt; text-align: right;">5</p> </td> <td style="vertical-align: bottom; width: 3%; text-align: center;"><em style="font-weight: inherit; font-style: normal;">-</em></td> <td style="vertical-align: bottom; width: 6%;">7</td> </tr> </tbody> </table> <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"> </p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;text-indent:24pt;">The cost and accumulated depreciation of items sold or retired are removed from the accounts. Any resulting gain or loss is recognized currently and recorded in the accompanying statements of operations.</p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;text-indent:24pt;"> </p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;text-indent:24pt;">The Company capitalizes interest costs as part of constructing power plant facilities. Such capitalized interest is recorded as part of the asset to which it relates and is amortized over the asset’s estimated useful life. Capitalized interest costs amounted to $3.3 million, $3.7 million, and $7.2 million for the years ended <em style="font-weight: inherit; font-style: normal;"> December 31, 2019, </em><em style="font-weight: inherit; font-style: normal;">2018</em> and <em style="font-weight: inherit; font-style: normal;">2017,</em> respectively.</p>
CY2019	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	3300000	USD
CY2018	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	3700000	USD
CY2017	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	7200000	USD
CY2019	us-gaap	Exploration Abandonment And Impairment Expense ExplorationAbandonmentAndImpairmentExpense	0.0	USD
CY2018	us-gaap	Exploration Abandonment And Impairment Expense ExplorationAbandonmentAndImpairmentExpense	100000	USD
CY2017	us-gaap	Exploration Abandonment And Impairment Expense ExplorationAbandonmentAndImpairmentExpense	1800000	USD
CY2019Q4	us-gaap	Accumulated Amortization Deferred Finance Costs AccumulatedAmortizationDeferredFinanceCosts	19500000	USD
CY2018Q4	us-gaap	Accumulated Amortization Deferred Finance Costs AccumulatedAmortizationDeferredFinanceCosts	21800000	USD
CY2019	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	5400000	USD
CY2018	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	4600000	USD
CY2017	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	5700000	USD
CY2019	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	0	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	1500000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	0.0	USD
CY2018Q4	ora	Contract With Customer Asset Liability Net ContractWithCustomerAssetLiabilityNet	23728000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	38365000	USD
CY2018Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	42130000	USD
CY2019Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	2755000	USD
CY2018Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	18402000	USD
CY2019Q4	ora	Contract With Customer Asset Liability Net ContractWithCustomerAssetLiabilityNet	35610000	USD
CY2019	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	12675000	USD
CY2018	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	33349000	USD
CY2019	ora	Contract With Customer Liability Cash Received For Revenues Not Yet Recognized ContractWithCustomerLiabilityCashReceivedForRevenuesNotYetRecognized	-3323000	USD
CY2018	ora	Contract With Customer Liability Cash Received For Revenues Not Yet Recognized ContractWithCustomerLiabilityCashReceivedForRevenuesNotYetRecognized	-38162000	USD
CY2019	us-gaap	Contract With Customer Asset Reclassified To Receivable ContractWithCustomerAssetReclassifiedToReceivable	-130918000	USD
CY2018	us-gaap	Contract With Customer Asset Reclassified To Receivable ContractWithCustomerAssetReclassifiedToReceivable	-128659000	USD
CY2019	ora	Contract With Customer Asset Assets Recognized ContractWithCustomerAssetAssetsRecognized	133448000	USD
CY2018	ora	Contract With Customer Asset Assets Recognized ContractWithCustomerAssetAssetsRecognized	136496000	USD
CY2019	ora	Contract With Customer Asset Net Change ContractWithCustomerAssetNetChange	2530000	USD
CY2019	ora	Contract With Customer Liability Liability Net Change ContractWithCustomerLiabilityLiabilityNetChange	9352000	USD
CY2018	ora	Contract With Customer Asset Net Change ContractWithCustomerAssetNetChange	7837000	USD
CY2018	ora	Contract With Customer Liability Liability Net Change ContractWithCustomerLiabilityLiabilityNetChange	-4813000	USD
CY2019	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	746044000	USD
CY2018	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	719267000	USD
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50867000
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50643000
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50110000
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	360000
CY2018	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	326000
CY2017	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	659000
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	51227000
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50969000
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50769000
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	360500
CY2018	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	176400
CY2017	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	42900
CY2019	us-gaap	Use Of Estimates UseOfEstimates	<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;text-indent:14pt;"><i><b>Use of estimates in preparation of financial statements</b></i></p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;text-indent:24pt;"> </p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;text-indent:24pt;">The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the dates of such financial statements and the reported amounts of revenues and expenses during the reporting periods. Actual results could differ from those estimates. The most significant estimates with regard to the Company’s consolidated financial statements relate to the useful lives of property, plant and equipment, impairment of goodwill and long-lived assets, including intangible assets, revenue recognition of product sales using the percentage of completion method, asset retirement obligations, and the provision for income taxes.</p>
CY2018Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	8603000	USD
CY2017Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	6416000	USD
CY2019	ora	Redeemable Noncontrolling Interest Equity Operation Of Consolidated Subsidiary RedeemableNoncontrollingInterestEquityOperationOfConsolidatedSubsidiary	1132000	USD
CY2018	ora	Redeemable Noncontrolling Interest Equity Operation Of Consolidated Subsidiary RedeemableNoncontrollingInterestEquityOperationOfConsolidatedSubsidiary	990000	USD
CY2019	ora	Redeemable Noncontrolling Interest Equity Payment To Minority For Dividendreturn On Investment RedeemableNoncontrollingInterestEquityPaymentToMinorityForDividendreturnOnInvestment	252000	USD
CY2018	ora	Redeemable Noncontrolling Interest Equity Payment To Minority For Dividendreturn On Investment RedeemableNoncontrollingInterestEquityPaymentToMinorityForDividendreturnOnInvestment	-0	USD
CY2019	ora	Redeemable Noncontrolling Interest Equity Increase In Share Of Redeemable Noncontrolling Interest RedeemableNoncontrollingInterestEquityIncreaseInShareOfRedeemableNoncontrollingInterest	0	USD
CY2018	ora	Redeemable Noncontrolling Interest Equity Increase In Share Of Redeemable Noncontrolling Interest RedeemableNoncontrollingInterestEquityIncreaseInShareOfRedeemableNoncontrollingInterest	1528000	USD
CY2019	ora	Redeemable Noncontrolling Interest Equity Currency Translation Adjustment RedeemableNoncontrollingInterestEquityCurrencyTranslationAdjustment	233000	USD
CY2018	ora	Redeemable Noncontrolling Interest Equity Currency Translation Adjustment RedeemableNoncontrollingInterestEquityCurrencyTranslationAdjustment	331000	USD
CY2019Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	9250000	USD
CY2018Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	8603000	USD
CY2018Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	51441000	USD
CY2019Q1	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	16056000	USD
CY2018Q4	ora	Deferred Financing And Lease Costs DeferredFinancingAndLeaseCosts	3242000	USD
CY2019Q1	ora	Deferred Financing And Lease Costs DeferredFinancingAndLeaseCosts	1583000	USD
CY2018Q4	ora	Property Plant And Equipment Net Excluding Construction In Progress Net PropertyPlantAndEquipmentNetExcludingConstructionInProgressNet	1959578000	USD
CY2019Q1	ora	Property Plant And Equipment Net Excluding Construction In Progress Net PropertyPlantAndEquipmentNetExcludingConstructionInProgressNet	1946723000	USD
CY2018Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	0	USD
CY2019Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	62244000	USD
CY2018Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	0	USD
CY2019Q1	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	13476000	USD
CY2018Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	116362000	USD
CY2019Q1	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	113502000	USD
CY2018Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	0	USD
CY2019Q1	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	7532000	USD
CY2018Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	0	USD
CY2019Q1	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	2841000	USD
CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	16087000	USD
CY2019Q1	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	6117000	USD
CY2018Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	0	USD
CY2019Q1	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	17668000	USD
CY2018Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	0	USD
CY2019Q1	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	10668000	USD
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	422222000	USD
CY2019Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	422164000	USD
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.05	pure
CY2019Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.07	pure
CY2019Q4	us-gaap	Inventory Raw Materials And Supplies Net Of Reserves InventoryRawMaterialsAndSuppliesNetOfReserves	21942000	USD
CY2018Q4	us-gaap	Inventory Raw Materials And Supplies Net Of Reserves InventoryRawMaterialsAndSuppliesNetOfReserves	26914000	USD
CY2019Q4	us-gaap	Inventory Finished Goods And Work In Process Net Of Reserves InventoryFinishedGoodsAndWorkInProcessNetOfReserves	13007000	USD
CY2018Q4	us-gaap	Inventory Finished Goods And Work In Process Net Of Reserves InventoryFinishedGoodsAndWorkInProcessNetOfReserves	18110000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	34949000	USD
CY2018Q4	us-gaap	Inventory Net InventoryNet	45024000	USD
CY2019Q4	us-gaap	Receivables Long Term Contracts Or Programs ReceivablesLongTermContractsOrPrograms	196550000	USD
CY2018Q4	us-gaap	Receivables Long Term Contracts Or Programs ReceivablesLongTermContractsOrPrograms	278797000	USD
CY2019Q4	ora	Billings To Date BillingsToDate	160940000	USD
CY2018Q4	ora	Billings To Date BillingsToDate	255069000	USD
CY2019Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	35610000	USD
CY2018Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	23728000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Gross ContractWithCustomerAssetGross	38365000	USD
CY2018Q4	us-gaap	Contract With Customer Asset Gross ContractWithCustomerAssetGross	42130000	USD
CY2019Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	2755000	USD
CY2018Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	18402000	USD
CY2019Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	35610000	USD
CY2018Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	23728000	USD
CY2019Q4	ora	Investment In Unconsolidated Companies In Excess Of Accumulated Losses InvestmentInUnconsolidatedCompaniesInExcessOfAccumulatedLosses	81140000	USD
CY2018Q4	ora	Investment In Unconsolidated Companies In Excess Of Accumulated Losses InvestmentInUnconsolidatedCompaniesInExcessOfAccumulatedLosses	71983000	USD
CY2019	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	2556000	USD
CY2018	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	7411000	USD
CY2017	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	5268000	USD
CY2019Q4	us-gaap	Lines Of Credit Fair Value Disclosure LinesOfCreditFairValueDisclosure	40600000	USD
CY2019Q4	us-gaap	Deposits Fair Value Disclosure DepositsFairValueDisclosure	12200000	USD
CY2018Q4	us-gaap	Lines Of Credit Fair Value Disclosure LinesOfCreditFairValueDisclosure	159000000.0	USD
CY2018Q4	us-gaap	Deposits Fair Value Disclosure DepositsFairValueDisclosure	12000000.0	USD
CY2019Q4	us-gaap	Capitalized Costs Asset Retirement Costs CapitalizedCostsAssetRetirementCosts	19824000	USD
CY2018Q4	us-gaap	Capitalized Costs Asset Retirement Costs CapitalizedCostsAssetRetirementCosts	11448000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	3225949000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	3097806000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	1254534000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	1138228000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1971415000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1959578000	USD
CY2019	us-gaap	Depreciation Depreciation	126700000	USD
CY2018	us-gaap	Depreciation Depreciation	114400000	USD
CY2017	us-gaap	Depreciation Depreciation	98800000	USD
CY2019	ora	Depreciation Net Of Amortization Of Cash Grant DepreciationNetOfAmortizationOfCashGrant	7300000	USD
CY2018	ora	Depreciation Net Of Amortization Of Cash Grant DepreciationNetOfAmortizationOfCashGrant	6400000	USD
CY2017	ora	Depreciation Net Of Amortization Of Cash Grant DepreciationNetOfAmortizationOfCashGrant	5500000	USD
CY2019Q4	ora	Property Plant And Equipment Including Construction In Progress Net PropertyPlantAndEquipmentIncludingConstructionInProgressNet	1841400000	USD
CY2018Q4	ora	Property Plant And Equipment Including Construction In Progress Net PropertyPlantAndEquipmentIncludingConstructionInProgressNet	1696400000	USD
CY2019	ora	Property Plant And Equipment Cash Grant Net PropertyPlantAndEquipmentCashGrantNet	162300000	USD
CY2018	ora	Property Plant And Equipment Cash Grant Net PropertyPlantAndEquipmentCashGrantNet	179700000	USD
CY2019Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	376555000	USD
CY2018Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	261690000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	13300000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	11200000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	6900000	USD
CY2019	us-gaap	Increase Decrease In Intangible Assets Current IncreaseDecreaseInIntangibleAssetsCurrent	0.0	USD
CY2018	us-gaap	Increase Decrease In Intangible Assets Current IncreaseDecreaseInIntangibleAssetsCurrent	127000000.0	USD
CY2017	us-gaap	Increase Decrease In Intangible Assets Current IncreaseDecreaseInIntangibleAssetsCurrent	35600000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	12983000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	12983000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	12729000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	12610000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	11255000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	123660000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	186220000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	20100000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	20000000.0	USD
CY2018Q4	us-gaap	Goodwill Goodwill	19950000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	21037000	USD
CY2019	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	0	USD
CY2018	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	12710000	USD
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	-0	USD
CY2018	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	13464000	USD
CY2019	us-gaap	Goodwill Transfers GoodwillTransfers	190000	USD
CY2018	us-gaap	Goodwill Transfers GoodwillTransfers	-333000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	20140000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	19950000	USD
CY2019Q4	us-gaap	Accounts Payable Trade Current AccountsPayableTradeCurrent	73271000	USD
CY2018Q4	us-gaap	Accounts Payable Trade Current AccountsPayableTradeCurrent	56299000	USD
CY2019Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	24364000	USD
CY2018Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	20188000	USD
CY2019Q4	ora	Contract With Customer Liability Current Customer Advance ContractWithCustomerLiabilityCurrentCustomerAdvance	2092000	USD
CY2018Q4	ora	Contract With Customer Liability Current Customer Advance ContractWithCustomerLiabilityCurrentCustomerAdvance	918000	USD
CY2019Q4	us-gaap	Interest Payable Current InterestPayableCurrent	6321000	USD
CY2018Q4	us-gaap	Interest Payable Current InterestPayableCurrent	5914000	USD
CY2019Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	11344000	USD
CY2018Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	8436000	USD
CY2019Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	3033000	USD
CY2018Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	2999000	USD
CY2019Q4	ora	Scheduling And Transmission Current SchedulingAndTransmissionCurrent	2264000	USD
CY2018Q4	ora	Scheduling And Transmission Current SchedulingAndTransmissionCurrent	595000	USD
CY2019Q4	us-gaap	Accrued Royalties Current AccruedRoyaltiesCurrent	6457000	USD
CY2018Q4	us-gaap	Accrued Royalties Current AccruedRoyaltiesCurrent	4610000	USD
CY2019Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	3245000	USD
CY2018Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	4552000	USD
CY2019Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	9466000	USD
CY2018Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	9551000	USD
CY2019Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	141857000	USD
CY2018Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	116362000	USD
CY2019Q4	ora	Limited And Non Recourse Debt LimitedAndNonRecourseDebt	732461000	USD
CY2018Q4	ora	Limited And Non Recourse Debt LimitedAndNonRecourseDebt	775547000	USD
CY2019Q4	ora	Limited And Non Recourse Debt Current LimitedAndNonRecourseDebtCurrent	58932000	USD
CY2018Q4	ora	Limited And Non Recourse Debt Current LimitedAndNonRecourseDebtCurrent	63180000	USD
CY2019Q4	ora	Limited And Nonrecourse Debt Noncurrent LimitedAndNonrecourseDebtNoncurrent	673529000	USD
CY2018Q4	ora	Limited And Nonrecourse Debt Noncurrent LimitedAndNonrecourseDebtNoncurrent	712367000	USD
CY2019Q4	ora	Recourse Debt RecourseDebt	474514000	USD
CY2018Q4	ora	Recourse Debt RecourseDebt	510832000	USD
CY2019Q4	ora	Recourse Debt Current RecourseDebtCurrent	117122000	USD
CY2018Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	39475000	USD
CY2018Q4	ora	Recourse Debt Current RecourseDebtCurrent	164000000	USD
CY2019Q4	ora	Recourse Debt Noncurrent RecourseDebtNoncurrent	357392000	USD
CY2018Q4	ora	Recourse Debt Noncurrent RecourseDebtNoncurrent	346832000	USD
CY2019Q3	us-gaap	Proceeds From Issuance Of Commercial Paper ProceedsFromIssuanceOfCommercialPaper	50000000.0	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1515400000	USD
CY2019Q4	ora	Percentage Of Company Assets PercentageOfCompanyAssets	0.466	pure
CY2019	us-gaap	Payments Of Dividends PaymentsOfDividends	22400000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	135504000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	76259000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	220677000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	98982000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	78600000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	557890000	USD
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	1167912000	USD
CY2005	ora	Lease Term LeaseTerm	P31Y
CY2005Q4	us-gaap	Deferred Revenue Leases Gross DeferredRevenueLeasesGross	83000000.0	USD
CY2005	ora	Lease Payment Term LeasePaymentTerm	P23Y
CY2018Q4	us-gaap	Deferred Costs Leasing Gross DeferredCostsLeasingGross	4200000	USD
CY2018Q4	us-gaap	Capital Leases Balance Sheet Assets By Major Class Net CapitalLeasesBalanceSheetAssetsByMajorClassNet	19700000	USD
CY2018Q4	us-gaap	Capital Leases Lessee Balance Sheet Assets By Major Class Accumulated Deprecation CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation	33100000	USD
CY2018Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	39475000	USD
CY2017Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	27110000	USD
CY2019	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-335000	USD
CY2018	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-258000	USD
CY2019	ora	Asset Retirement Obligation Liabilities Incurred And Acquired AssetRetirementObligationLiabilitiesIncurredAndAcquired	8334000	USD
CY2018	ora	Asset Retirement Obligation Liabilities Incurred And Acquired AssetRetirementObligationLiabilitiesIncurredAndAcquired	10149000	USD
CY2019	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	2709000	USD
CY2018	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	2474000	USD
CY2019Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	50183000	USD
CY2019Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	8400000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y2M12D
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	9359000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	10218000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	8760000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	736000	USD
CY2018	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	668000	USD
CY2017	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	604000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	8623000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	9550000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	8156000	USD
CY2019Q4	ora	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Annual Forfeiture Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAnnualForfeitureRate	0.107	pure
CY2018Q4	ora	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Annual Forfeiture Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAnnualForfeitureRate	0.053	pure
CY2017Q4	ora	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Annual Forfeiture Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAnnualForfeitureRate	0.011	pure
CY2019Q4	ora	Increase Decrease In Stock Based Compensation Expense Due To Forfeitures IncreaseDecreaseInStockBasedCompensationExpenseDueToForfeitures	1.019	pure
CY2018Q4	ora	Increase Decrease In Stock Based Compensation Expense Due To Forfeitures IncreaseDecreaseInStockBasedCompensationExpenseDueToForfeitures	3.818	pure
CY2017Q4	ora	Increase Decrease In Stock Based Compensation Expense Due To Forfeitures IncreaseDecreaseInStockBasedCompensationExpenseDueToForfeitures	-0.893	pure
CY2019	ora	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Dividends Growth Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsDividendsGrowthRate	0.20	pure
CY2019	ora	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Weighted Average Expected Dividend Rate SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsWeightedAverageExpectedDividendRate	0.007	pure
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.018	pure
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.028	pure
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.019	pure
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P3Y6M
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P3Y6M
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P3Y1M6D
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.007	pure
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.009	pure
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0062	pure
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.251	pure
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.255	pure
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.272	pure
CY2019	ora	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Forfeitures ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedForfeitures	0.086	pure
CY2018	ora	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Forfeitures ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedForfeitures	0.031	pure
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1792000
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P3Y9M18D
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	43277000	USD
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	479000
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P3Y2M12D
CY2019Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	11729000	USD
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2527000
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P4Y3M18D
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	17283000	USD
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	846000
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P3Y3M18D
CY2018Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	9389000	USD
CY2019Q4	us-gaap	Share Price SharePrice	74.52
CY2018Q4	us-gaap	Share Price SharePrice	52.30
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber	479402
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber	846215
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	19300000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	5200000	USD
CY2019	ora	Interest Expense Sale Of Tax Benefits InterestExpenseSaleOfTaxBenefits	11786000	USD
CY2018	ora	Interest Expense Sale Of Tax Benefits InterestExpenseSaleOfTaxBenefits	11284000	USD
CY2017	ora	Interest Expense Sale Of Tax Benefits InterestExpenseSaleOfTaxBenefits	6985000	USD
CY2019	us-gaap	Interest Expense Other InterestExpenseOther	71883000	USD
CY2018	us-gaap	Interest Expense Other InterestExpenseOther	63368000	USD
CY2017	us-gaap	Interest Expense Other InterestExpenseOther	54381000	USD
CY2019	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	3285000	USD
CY2018	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	3728000	USD
CY2017	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	7224000	USD
CY2019	us-gaap	Interest Expense InterestExpense	80384000	USD
CY2018	us-gaap	Interest Expense InterestExpense	70924000	USD
CY2017	us-gaap	Interest Expense InterestExpense	54142000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	14187000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	14097000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	13680000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	123116000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	123084000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	157050000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	137303000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	137181000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	170730000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	43935000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	172000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	381000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	43000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	16969000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	14992000	USD
CY2017	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	11186000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	17141000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	15373000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	55164000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-12179000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-6886000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-55718000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	4671000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-2595000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-3284000	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	35980000	USD
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	28841000	USD
CY2017	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	25502000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	28472000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	19360000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-33500000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	45613000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	34733000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	21664000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210	pure
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210	pure
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350	pure
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.000	pure
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.026	pure
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	-0.124	pure
CY2018	ora	Effective Income Tax Rate Reconciliation Transition Tax Inclusion EffectiveIncomeTaxRateReconciliationTransitionTaxInclusion	-0.057	pure
CY2017	ora	Effective Income Tax Rate Reconciliation Transition Tax Inclusion EffectiveIncomeTaxRateReconciliationTransitionTaxInclusion	0.421	pure
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Foreign EffectiveIncomeTaxRateReconciliationTaxCreditsForeign	0.228	pure
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Foreign EffectiveIncomeTaxRateReconciliationTaxCreditsForeign	0.042	pure
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Foreign EffectiveIncomeTaxRateReconciliationTaxCreditsForeign	0.505	pure
CY2019	ora	Effective Income Tax Rate Reconciliation Withholding Tax Percent EffectiveIncomeTaxRateReconciliationWithholdingTaxPercent	0.104	pure
CY2018	ora	Effective Income Tax Rate Reconciliation Withholding Tax Percent EffectiveIncomeTaxRateReconciliationWithholdingTaxPercent	0.059	pure
CY2017	ora	Effective Income Tax Rate Reconciliation Withholding Tax Percent EffectiveIncomeTaxRateReconciliationWithholdingTaxPercent	0.341	pure
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.037	pure
CY2018	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.010	pure
CY2017	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.011	pure
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0.021	pure
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0.021	pure
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.097	pure
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.056	pure
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.107	pure
CY2019	ora	Effective Income Tax Rate Reconciliation Tax Credit Production Percent EffectiveIncomeTaxRateReconciliationTaxCreditProductionPercent	-0.050	pure
CY2018	ora	Effective Income Tax Rate Reconciliation Tax Credit Production Percent EffectiveIncomeTaxRateReconciliationTaxCreditProductionPercent	-0.031	pure
CY2017	ora	Effective Income Tax Rate Reconciliation Tax Credit Production Percent EffectiveIncomeTaxRateReconciliationTaxCreditProductionPercent	-0.012	pure
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Repatriation Of Foreign Earnings EffectiveIncomeTaxRateReconciliationRepatriationOfForeignEarnings	0.005	pure
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Repatriation Of Foreign Earnings EffectiveIncomeTaxRateReconciliationRepatriationOfForeignEarnings	0.005	pure
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Repatriation Of Foreign Earnings EffectiveIncomeTaxRateReconciliationRepatriationOfForeignEarnings	0.017	pure
CY2019	ora	Effective Income Tax Rate Reconciliation Tax On Global Intangible Lowincome Tax Percent EffectiveIncomeTaxRateReconciliationTaxOnGlobalIntangibleLowincomeTaxPercent	0.169	pure
CY2018	ora	Effective Income Tax Rate Reconciliation Tax On Global Intangible Lowincome Tax Percent EffectiveIncomeTaxRateReconciliationTaxOnGlobalIntangibleLowincomeTaxPercent	0.186	pure
CY2019	ora	Effective Income Tax Rate Reconciliation Intraentity Transfers Of Assets Other Than Inventory Percent EffectiveIncomeTaxRateReconciliationIntraentityTransfersOfAssetsOtherThanInventoryPercent	0.003	pure
CY2018	ora	Effective Income Tax Rate Reconciliation Intraentity Transfers Of Assets Other Than Inventory Percent EffectiveIncomeTaxRateReconciliationIntraentityTransfersOfAssetsOtherThanInventoryPercent	-0.021	pure
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.001	pure
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.003	pure
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.039	pure
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.332	pure
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.253	pure
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.127	pure
CY2019Q4	ora	Deferred Tax Liability Net Foreign Deferred Taxes Primarily Depreciation DeferredTaxLiabilityNetForeignDeferredTaxesPrimarilyDepreciation	88508000	USD
CY2018Q4	ora	Deferred Tax Liability Net Foreign Deferred Taxes Primarily Depreciation DeferredTaxLiabilityNetForeignDeferredTaxesPrimarilyDepreciation	57202000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	21958000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	30500000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	1405000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	7370000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	45307000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	65020000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	30964000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	17104000	USD
CY2019Q4	ora	Deferred Tax Liabilities Lease Liabilities Right Of Use Asset DeferredTaxLiabilitiesLeaseLiabilitiesRightOfUseAsset	3715000	USD
CY2018Q4	ora	Deferred Tax Liabilities Lease Liabilities Right Of Use Asset DeferredTaxLiabilitiesLeaseLiabilitiesRightOfUseAsset	-0	USD
CY2019Q4	ora	Deferred Tax Assets Lease Liabilities DeferredTaxAssetsLeaseLiabilities	3755000	USD
CY2018Q4	ora	Deferred Tax Assets Lease Liabilities DeferredTaxAssetsLeaseLiabilities	0	USD
CY2019Q4	us-gaap	Deferred Tax Assets Investments DeferredTaxAssetsInvestments	813000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Investments DeferredTaxAssetsInvestments	813000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards General Business DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness	100524000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards General Business DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness	90913000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	92497000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	58072000	USD
CY2019Q4	ora	Deferred Tax Liabilities Withholding Tax DeferredTaxLiabilitiesWithholdingTax	15539000	USD
CY2018Q4	ora	Deferred Tax Liabilities Withholding Tax DeferredTaxLiabilitiesWithholdingTax	8052000	USD
CY2019Q4	ora	Deferred Tax Assets Stock Options Amortization DeferredTaxAssetsStockOptionsAmortization	1409000	USD
CY2018Q4	ora	Deferred Tax Assets Stock Options Amortization DeferredTaxAssetsStockOptionsAmortization	1440000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Investment In Noncontrolled Affiliates DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates	39622000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Investment In Noncontrolled Affiliates DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates	36516000	USD
CY2019Q4	us-gaap	Deferred Tax Asset Interest Carryforward DeferredTaxAssetInterestCarryforward	6189000	USD
CY2018Q4	us-gaap	Deferred Tax Asset Interest Carryforward DeferredTaxAssetInterestCarryforward	0	USD
CY2019Q4	ora	Deferred Tax Assets Tax Deferred Expense Reserves Accruals Accrued Liabilities And Other Amounts DeferredTaxAssetsTaxDeferredExpenseReservesAccrualsAccruedLiabilitiesAndOtherAmounts	1013000	USD
CY2018Q4	ora	Deferred Tax Assets Tax Deferred Expense Reserves Accruals Accrued Liabilities And Other Amounts DeferredTaxAssetsTaxDeferredExpenseReservesAccrualsAccruedLiabilitiesAndOtherAmounts	624000	USD
CY2019Q4	ora	Deferred Tax Assets Liabilities Gross DeferredTaxAssetsLiabilitiesGross	49796000	USD
CY2018Q4	ora	Deferred Tax Assets Liabilities Gross DeferredTaxAssetsLiabilitiesGross	74878000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	17412000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	22441000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	32384000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	52437000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	22441000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	77571000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	116234000	USD
CY2019	ora	Valuation Allowance Deferred Tax Asset Addition ValuationAllowanceDeferredTaxAssetAddition	15437000	USD
CY2018	ora	Valuation Allowance Deferred Tax Asset Addition ValuationAllowanceDeferredTaxAssetAddition	4747000	USD
CY2017	ora	Valuation Allowance Deferred Tax Asset Addition ValuationAllowanceDeferredTaxAssetAddition	46560000	USD
CY2019	ora	Valuation Allowance Deferred Tax Asset Release ValuationAllowanceDeferredTaxAssetRelease	20466000	USD
CY2018	ora	Valuation Allowance Deferred Tax Asset Release ValuationAllowanceDeferredTaxAssetRelease	59877000	USD
CY2017	ora	Valuation Allowance Deferred Tax Asset Release ValuationAllowanceDeferredTaxAssetRelease	85223000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	17412000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	22441000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	77571000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	17400000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	22400000	USD
CY2019	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	-5000000.0	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35	pure
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21	pure
CY2019Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	129510000	USD
CY2018Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	113760000	USD
CY2017Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	57337000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	97126000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	61323000	USD
CY2017Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	61961000	USD
CY2019Q4	ora	Deferred Tax Assets Before Uncertain Tax Benefits DeferredTaxAssetsBeforeUncertainTaxBenefits	32384000	USD
CY2018Q4	ora	Deferred Tax Assets Before Uncertain Tax Benefits DeferredTaxAssetsBeforeUncertainTaxBenefits	52437000	USD
CY2017Q4	ora	Deferred Tax Liabilities Before Uncertain Tax Benefits DeferredTaxLiabilitiesBeforeUncertainTaxBenefits	4624000	USD
CY2019Q4	ora	Uncertain Tax Benefit Decrease To Deferred Tax Asset UncertainTaxBenefitDecreaseToDeferredTaxAsset	95000	USD
CY2018Q4	ora	Uncertain Tax Benefit Decrease To Deferred Tax Asset UncertainTaxBenefitDecreaseToDeferredTaxAsset	95000	USD
CY2017Q4	ora	Uncertain Tax Benefit Decrease To Deferred Tax Asset UncertainTaxBenefitDecreaseToDeferredTaxAsset	95000	USD
CY2019Q4	ora	Deferred Tax Assets Liabilities After Uncertain Tax Benefit Offset DeferredTaxAssetsLiabilitiesAfterUncertainTaxBenefitOffset	32289000	USD
CY2018Q4	ora	Deferred Tax Assets Liabilities After Uncertain Tax Benefit Offset DeferredTaxAssetsLiabilitiesAfterUncertainTaxBenefitOffset	52342000	USD
CY2017Q4	ora	Deferred Tax Assets Liabilities After Uncertain Tax Benefit Offset DeferredTaxAssetsLiabilitiesAfterUncertainTaxBenefitOffset	-4719000	USD
CY2017	us-gaap	Foreign Earnings Repatriated ForeignEarningsRepatriated	396000000.0	USD
CY2017Q4	us-gaap	Foreign Earnings Repatriated ForeignEarningsRepatriated	300000000.0	USD
CY2018Q4	ora	Distribution Of Earnings In Foreign Subsidiaries DistributionOfEarningsInForeignSubsidiaries	96000000.0	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	14600000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	11800000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	8820000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	6357000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4609000	USD
CY2019	ora	Unrecognized Tax Benefits Increases Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesDecreasesResultingFromPriorPeriodTaxPositions	104000	USD
CY2018	ora	Unrecognized Tax Benefits Increases Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesDecreasesResultingFromPriorPeriodTaxPositions	293000	USD
CY2017	ora	Unrecognized Tax Benefits Increases Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesDecreasesResultingFromPriorPeriodTaxPositions	5000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	2314000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	2446000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	2580000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	615000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	276000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	837000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	10623000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	8820000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	6357000	USD
CY2017Q4	us-gaap	Assets Assets	2623864000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	259234000	USD
CY2019	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	746044000	USD
CY2018	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	719267000	USD
CY2017	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	692812000	USD
CY2019	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	746044000	USD
CY2018	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	719267000	USD
CY2019	ora	Depreciation Bonus Permitted Write Off Equipment Cost Percentage DepreciationBonusPermittedWriteOffEquipmentCostPercentage	1	pure
CY2019	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	pure
CY2019	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	746044000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	148761000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	193796000	USD
CY2019Q4	us-gaap	Assets Assets	3250494000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	279986000	USD
CY2018	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	719267000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	132233000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	185110000	USD
CY2018Q4	us-gaap	Assets Assets	3121350000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	258521000	USD
CY2017	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	692812000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	115146000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	205018000	USD
CY2017	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	692812000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	193796000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	185110000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	205018000	USD
CY2019	us-gaap	Investment Income Interest InvestmentIncomeInterest	1515000	USD
CY2018	us-gaap	Investment Income Interest InvestmentIncomeInterest	974000	USD
CY2017	us-gaap	Investment Income Interest InvestmentIncomeInterest	988000	USD
CY2019	us-gaap	Interest Expense InterestExpense	80384000	USD
CY2018	us-gaap	Interest Expense InterestExpense	70924000	USD
CY2017	us-gaap	Interest Expense InterestExpense	54142000	USD
CY2019	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	624000	USD
CY2018	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-4761000	USD
CY2017	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	2654000	USD
CY2019	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	20872000	USD
CY2018	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	19003000	USD
CY2017	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	17878000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	880000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	7779000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-1666000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	137303000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	137181000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	170730000	USD
CY2019Q4	us-gaap	Noncurrent Assets NoncurrentAssets	2379537000	USD
CY2018Q4	us-gaap	Noncurrent Assets NoncurrentAssets	2221267000	USD
CY2017Q4	us-gaap	Noncurrent Assets NoncurrentAssets	2133289000	USD
CY2019	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	746044000	USD
CY2018	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	719267000	USD
CY2017	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	692812000	USD
CY2019	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Percent DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent	0.60	pure
CY2019	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.04	pure
CY2018	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.04	pure
CY2017	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.03	pure
CY2019	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	1600000	USD
CY2018	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	1600000	USD
CY2017	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	1400000	USD
CY2019	us-gaap	Severance Costs1 SeveranceCosts1	3500000	USD
CY2018	us-gaap	Severance Costs1 SeveranceCosts1	3000000.0	USD
CY2017	us-gaap	Severance Costs1 SeveranceCosts1	3200000	USD
CY2019	ora	Gain Loss Of Severance Fund GainLossOfSeveranceFund	1000000.0	USD
CY2018	ora	Gain Loss Of Severance Fund GainLossOfSeveranceFund	-1100000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	500000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter	11232000	USD
CY2019Q4	ora	Defined Benefit Plan Expected Future Benefit Payments Total DefinedBenefitPlanExpectedFutureBenefitPaymentsTotal	19803000	USD
CY2019Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	213800000	USD
CY2019Q4	us-gaap	Recorded Unconditional Purchase Obligation RecordedUnconditionalPurchaseObligation	185000000.0	USD
CY2019Q4	ora	Royalty Cap Amount RoyaltyCapAmount	2100000	USD
CY2018Q4	ora	Royalty Cap Amount RoyaltyCapAmount	2000000.0	USD
CY2017	ora	Gain Loss Of Severance Fund GainLossOfSeveranceFund	1800000	USD
CY2019Q4	ora	Royaltycap Amount Libor Rate RoyaltycapAmountLIBORRate	1100000	USD
CY2018Q4	ora	Royaltycap Amount Libor Rate RoyaltycapAmountLIBORRate	1000000.0	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	4780000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	1434000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	1768000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	89000	USD
CY2019	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	3273000	USD
CY2019	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	1330000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	8057000	USD
CY2019	us-gaap	Variable Lease Cost VariableLeaseCost	1647000	USD
CY2019	us-gaap	Short Term Lease Cost ShortTermLeaseCost	0	USD
CY2019	us-gaap	Lease Cost LeaseCost	14307000	USD
CY2019	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	1330000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	9004000	USD
CY2019	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	3164000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	5262000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	6364000	USD
CY2019Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P4Y
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y3M18D
CY2019Q4	ora	Lease Weighted Average Discount Rate Percent LeaseWeightedAverageDiscountRatePercent	0.05	pure
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	16751000	USD
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	14277000	USD
CY2018Q4	ora	Operating And Capital Leases Future Minimum Payments Due In Three Years OperatingAndCapitalLeasesFutureMinimumPaymentsDueInThreeYears	5758000	USD
CY2018Q4	ora	Operating And Capital Leases Future Minimum Payments Due In Four Years OperatingAndCapitalLeasesFutureMinimumPaymentsDueInFourYears	4415000	USD
CY2018Q3	us-gaap	Revenues Revenues	166480000	USD
CY2018Q4	us-gaap	Revenues Revenues	190465000	USD
CY2019Q1	us-gaap	Revenues Revenues	199038000	USD
CY2019Q2	us-gaap	Revenues Revenues	184065000	USD
CY2019Q3	us-gaap	Revenues Revenues	170499000	USD
CY2018Q4	ora	Operating And Capital Leases Future Minimum Payments Due Next Twelve Months OperatingAndCapitalLeasesFutureMinimumPaymentsDueNextTwelveMonths	10889000	USD
CY2018Q4	ora	Operating And Capital Leases Future Minimum Payments Due In Two Years OperatingAndCapitalLeasesFutureMinimumPaymentsDueInTwoYears	7515000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	2742000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	4251000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	2701000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	3948000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	2079000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	3873000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	1524000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	2758000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	1275000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	906000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	10635000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	4118000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	20956000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	19854000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	4205000	USD
CY2019Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	5577000	USD
CY2018Q4	ora	Operating And Capital Leases Future Minimum Payments Due In Five Years OperatingAndCapitalLeasesFutureMinimumPaymentsDueInFiveYears	2910000	USD
CY2018Q4	ora	Operating And Capital Leases Future Minimum Payments Due Thereafter OperatingAndCapitalLeasesFutureMinimumPaymentsDueThereafter	9292000	USD
CY2018Q4	ora	Operating And Capital Leases Future Minimum Payments Due OperatingAndCapitalLeasesFutureMinimumPaymentsDue	40779000	USD
CY2019	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	479059000	USD
CY2019	us-gaap	Operating Lease Variable Lease Income OperatingLeaseVariableLeaseIncome	0	USD
CY2019	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	479059000	USD
CY2018Q1	us-gaap	Revenues Revenues	184023000	USD
CY2018Q2	us-gaap	Revenues Revenues	178299000	USD
CY2018Q1	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	110651000	USD
CY2019Q4	us-gaap	Revenues Revenues	192442000	USD
CY2018Q2	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	120837000	USD
CY2018Q3	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	117688000	USD
CY2018Q4	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	99656000	USD
CY2019Q1	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	124859000	USD
CY2019Q2	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	118918000	USD
CY2019Q3	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	115004000	USD
CY2019Q4	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	117940000	USD
CY2018Q1	us-gaap	Gross Profit GrossProfit	73372000	USD
CY2018Q2	us-gaap	Gross Profit GrossProfit	57462000	USD
CY2018Q3	us-gaap	Gross Profit GrossProfit	48792000	USD
CY2018Q4	us-gaap	Gross Profit GrossProfit	90809000	USD
CY2019Q1	us-gaap	Gross Profit GrossProfit	74179000	USD
CY2019Q2	us-gaap	Gross Profit GrossProfit	65147000	USD
CY2019Q3	us-gaap	Gross Profit GrossProfit	55495000	USD
CY2019Q4	us-gaap	Gross Profit GrossProfit	74502000	USD
CY2018Q1	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	1108000	USD
CY2018Q2	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	1251000	USD
CY2018Q3	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	706000	USD
CY2018Q4	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	1118000	USD
CY2019Q1	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	900000	USD
CY2019Q2	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	810000	USD
CY2019Q3	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	1062000	USD
CY2019Q4	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	1875000	USD
CY2018Q1	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	3699000	USD
CY2018Q2	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	3712000	USD
CY2018Q3	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	8578000	USD
CY2018Q4	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	3813000	USD
CY2019Q1	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	3865000	USD
CY2019Q2	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	3276000	USD
CY2019Q3	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	3783000	USD
CY2019Q4	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	4123000	USD
CY2018Q1	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	13849000	USD
CY2018Q2	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	15866000	USD
CY2018Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	13606000	USD
CY2018Q4	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	4429000	USD
CY2019Q1	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	15689000	USD
CY2019Q2	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	14181000	USD
CY2019Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	11931000	USD
CY2019Q4	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	14032000	USD
CY2018Q1	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2018Q2	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2018Q3	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2018Q4	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	13464000	USD
CY2019Q1	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2019Q2	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2019Q3	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2019Q4	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2018Q1	us-gaap	Exploration Abandonment And Impairment Expense ExplorationAbandonmentAndImpairmentExpense	123000	USD
CY2018Q2	us-gaap	Exploration Abandonment And Impairment Expense ExplorationAbandonmentAndImpairmentExpense	0	USD
CY2018Q3	us-gaap	Exploration Abandonment And Impairment Expense ExplorationAbandonmentAndImpairmentExpense	0	USD
CY2018Q4	us-gaap	Exploration Abandonment And Impairment Expense ExplorationAbandonmentAndImpairmentExpense	3000	USD
CY2019Q1	us-gaap	Exploration Abandonment And Impairment Expense ExplorationAbandonmentAndImpairmentExpense	0	USD
CY2019Q2	us-gaap	Exploration Abandonment And Impairment Expense ExplorationAbandonmentAndImpairmentExpense	0	USD
CY2019Q3	us-gaap	Exploration Abandonment And Impairment Expense ExplorationAbandonmentAndImpairmentExpense	0	USD
CY2019Q4	us-gaap	Exploration Abandonment And Impairment Expense ExplorationAbandonmentAndImpairmentExpense	0	USD
CY2018Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	54593000	USD
CY2018Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	36633000	USD
CY2018Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	25902000	USD
CY2018Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	67982000	USD
CY2019Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	53725000	USD
CY2019Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	46880000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	38719000	USD
CY2019Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	54472000	USD
CY2018Q1	us-gaap	Investment Income Interest InvestmentIncomeInterest	113000	USD
CY2018Q2	us-gaap	Investment Income Interest InvestmentIncomeInterest	189000	USD
CY2018Q3	us-gaap	Investment Income Interest InvestmentIncomeInterest	214000	USD
CY2018Q4	us-gaap	Investment Income Interest InvestmentIncomeInterest	458000	USD
CY2019Q1	us-gaap	Investment Income Interest InvestmentIncomeInterest	293000	USD
CY2019Q2	us-gaap	Investment Income Interest InvestmentIncomeInterest	420000	USD
CY2019Q3	us-gaap	Investment Income Interest InvestmentIncomeInterest	482000	USD
CY2019Q4	us-gaap	Investment Income Interest InvestmentIncomeInterest	320000	USD
CY2018Q1	us-gaap	Interest Expense InterestExpense	14344000	USD
CY2018Q2	us-gaap	Interest Expense InterestExpense	15846000	USD
CY2018Q3	us-gaap	Interest Expense InterestExpense	18700000	USD
CY2018Q4	us-gaap	Interest Expense InterestExpense	22034000	USD
CY2019Q1	us-gaap	Interest Expense InterestExpense	21223000	USD
CY2019Q2	us-gaap	Interest Expense InterestExpense	21517000	USD
CY2019Q3	us-gaap	Interest Expense InterestExpense	20076000	USD
CY2019Q4	us-gaap	Interest Expense InterestExpense	17568000	USD
CY2018Q1	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-1599000	USD
CY2018Q2	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-529000	USD
CY2018Q3	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-383000	USD
CY2018Q4	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-2250000	USD
CY2019Q1	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	472000	USD
CY2019Q2	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	19000	USD
CY2019Q3	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	205000	USD
CY2019Q4	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-72000	USD
CY2018Q1	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	7361000	USD
CY2018Q2	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	3556000	USD
CY2018Q3	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	4066000	USD
CY2018Q4	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	4020000	USD
CY2019Q1	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	7764000	USD
CY2019Q2	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	4637000	USD
CY2019Q3	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	4056000	USD
CY2019Q4	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	4415000	USD
CY2018Q1	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-20000	USD
CY2018Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	7373000	USD
CY2018Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	309000	USD
CY2018Q4	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	117000	USD
CY2019Q1	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	91000	USD
CY2019Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1027000	USD
CY2019Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	244000	USD
CY2019Q4	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-482000	USD
CY2018Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	46104000	USD
CY2018Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	31376000	USD
CY2018Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	11408000	USD
CY2018Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	48293000	USD
CY2019Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	41122000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	31466000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	23630000	USD
CY2019Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	41085000	USD
CY2018Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-26942000	USD
CY2018Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	29105000	USD
CY2018Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1184000	USD
CY2018Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	31386000	USD
CY2019Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	14039000	USD
CY2019Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-3529000	USD
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9626000	USD
CY2019Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	25477000	USD
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50933000
CY2019Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	51017000
CY2018Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	51051000
CY2018Q1	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	1210000	USD
CY2018Q2	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	388000	USD
CY2018Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-117000	USD
CY2018Q4	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	6182000	USD
CY2019Q1	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	1047000	USD
CY2019Q2	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	1202000	USD
CY2019Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	1085000	USD
CY2019Q4	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-1481000	USD
CY2018Q1	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	74256000	USD
CY2018Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	2659000	USD
CY2018Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	10107000	USD
CY2018Q4	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	23089000	USD
CY2019Q1	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	28130000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	36197000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	15089000	USD
CY2019Q4	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	14127000	USD
CY2018Q1	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	4748000	USD
CY2018Q2	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	3002000	USD
CY2018Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-474000	USD
CY2018Q4	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	4869000	USD
CY2019Q1	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	2184000	USD
CY2019Q2	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	2259000	USD
CY2019Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-516000	USD
CY2019Q4	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1521000	USD
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	69508000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	-343000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	10581000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	18220000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	25946000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	33938000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	15605000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	12606000	USD
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.37
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.01
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.21
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.36
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.51
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.67
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.31
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.25
CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.36
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.01
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.21
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.36
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.51
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.66
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.30
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.24
CY2018Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50614000
CY2018Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50623000
CY2018Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50645000
CY2018Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50691000
CY2019Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50709000
CY2019Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50800000
CY2018Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50958000
CY2018Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50963000
CY2018Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50936000
CY2019Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	51012000
CY2019Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	51094000
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	51334000
CY2019Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	51511000

Files In Submission

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$ORA
ORMAT TECHNOLOGIES, INC. Stock $ora

2019 Form 10-K Financial Statement

#000143774920004072 Filed on March 02, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ORA ORMAT TECHNOLOGIES, INC. Stock $ora

2019 Form 10-K Financial Statement

#000143774920004072 Filed on March 02, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ORA
ORMAT TECHNOLOGIES, INC. Stock $ora