XML 47 R35.htm IDEA: XBRL DOCUMENT
v3.20.2

Fair Value Measurements - Summary of Quantitative Information about Level 3 Inputs for Fair Value Measurement of Earnout Liability (Details) - Level 3 | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Revenue Volatility |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Earnout liability, measurement input | 35.00 | 35.00
WACC |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Earnout liability, measurement input | 12.00 | 13.00
20-Year Risk Free Rate |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Earnout liability, measurement input | 1.23 | 2.25
Market Price of Risk |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Earnout liability, measurement input | 8.00 | 10.00

X
- Definition Earnout liability measurement input. + References No definition available. + Details
Name: | ingn_EarnoutLiabilityMeasurementInput
Namespace Prefix: | ingn_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=ingn_MeasurementInputRevenueVolatilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=ingn_MeasurementInputWeightedAverageCostOfCapitalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=ingn_MeasurementInputTwentyYearRiskFreeRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=ingn_MeasurementInputMarketPriceOfRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |