XML 77 R66.htm IDEA: XBRL DOCUMENT
v3.23.1

Stock-Based Compensation - Additional Information (Details) |  |  |  | 3 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Nov. 18, 2020 USD ($) Grantee shares | Apr. 22, 2020 USD ($) Grantee shares | Jun. 22, 2019 shares | Mar. 31, 2023 USD ($) Employee $ / shares shares | Mar. 31, 2022 USD ($) | Feb. 28, 2023 shares | Dec. 31, 2021 shares | Nov. 13, 2019 shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Stock-based compensation |  |  |  | $ 23,477,000 | $ 24,281,000 |  |  |
Employee Stock Purchase Plan |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Weighted-average grand date fair value of options granted | $ / shares |  |  |  | $ 5.54 |  |  |  |
2020 Stock and Equity Award Exchange Program |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Stock-based compensation cost associated with performance-based milestone awards |  |  |  | $ 1,700,000 |  |  |  |
Maximum potential milestone performance-based awards to be settled in fully-vested RSA | $ 11,700,000 | $ 183,400,000 |  |  |  |  |  |
Performance-based milestone awards | $ 0 | $ 17,400,000 |  |  |  |  |  |
2020 Stock and Equity Award Exchange Program | Minimum |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Performance-based milestone awards period for recognition |  | 8 months 12 days |  |  |  |  |  |
2020 Stock and Equity Award Exchange Program | Maximum |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Performance-based milestone awards period for recognition |  | 1 year 8 months 12 days |  |  |  |  |  |
Employee Stock Options |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Weighted-average grand date fair value of options granted | $ / shares |  |  |  | $ 7.25 |  |  |  |
Employee Stock Options | 2020 Stock and Equity Award Exchange Program |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Number of options issued in exchange of subsidiary equity | shares | 70,436 | 1,268,110 |  |  |  |  |  |
Restricted Stock Awards | 2020 Stock and Equity Award Exchange Program |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Number of RSAs issued in exchange of subsidiary equity | shares |  | 50,145 |  |  |  |  |  |
Performance based milestone awards compensation expense settled with equity |  |  |  | $ 1,000,000.0 |  |  |  |
Performance-Based RSAs | 2020 Stock and Equity Award Exchange Program |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Number of Performance-Based RSAs issued in exchange of subsidiary equity | shares |  | 22,611 |  |  |  |  |  |
Performance-Based Stock Options | 2020 Stock and Equity Award Exchange Program |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Number of Performance-Based stock options issued in exchange of subsidiary equity | shares | 10,772 |  |  |  |  |  |  |
A&R 2019 Plan | 2020 Stock and Equity Award Exchange Program |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Number of grantees | Grantee | 16 | 149 |  |  |  |  |  |
Number of shares issued in exchange of subsidiary equity | shares | 24,924 | 554,064 |  |  |  |  |  |
A&R 2019 Plan | Common Stock |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Common shares reserved for future issuance | shares |  |  |  |  |  | 2,000,000 |  | 1,000,000
2021 A&R Plan | Common Stock |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Common shares reserved for future issuance | shares |  |  |  | 7,282,843 |  |  |  |
A&R 2019 Inducement Plan | Common Stock |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Common shares reserved for future issuance | shares |  |  |  | 1,290,150 |  |  |  |
Eidos Award Exchange Plan | Common Stock |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Common shares reserved for future issuance | shares |  |  |  |  |  |  | 2,802,644 |
A&R 2019 Plan and 2019 Inducement Plan |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Weighted-average grand date fair value of options granted | $ / shares |  |  |  | $ 6.28 |  |  |  |
Total intrinsic value of options exercised |  |  |  | $ 500,000 |  |  |  |
A&R 2019 Plan and 2019 Inducement Plan | 2020 Stock and Equity Award Exchange Program |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Stock-based compensation |  |  |  | $ 3,605,000 |  |  |  |
A&R 2019 Plan and 2019 Inducement Plan | Employee Stock Options |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Vesting period |  |  |  | 4 years |  |  |  |
Stock-based compensation |  |  |  | $ 6,900,000 | 10,800,000 |  |  |
Unrecognized compensation cost |  |  |  | $ 50,700,000 |  |  |  |
Unrecognized compensation cost, period for recognition |  |  |  | 2 years 3 months 18 days |  |  |  |
A&R 2019 Plan and 2019 Inducement Plan | Restricted Stock Awards |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Stock-based compensation |  |  |  | $ 4,631,000 | 1,485,000 |  |  |
Unrecognized compensation cost |  |  |  | $ 3,600,000 |  |  |  |
Unrecognized compensation cost, period for recognition |  |  |  | 10 months 24 days |  |  |  |
A&R 2019 Plan and 2019 Inducement Plan | Restricted Stock Units (RSUs) |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Stock-based compensation |  |  |  | $ 12,300,000 | 11,900,000 |  |  |
Unrecognized compensation cost |  |  |  | $ 155,500,000 |  |  |  |
Unrecognized compensation cost, period for recognition |  |  |  | 3 years 3 months 18 days |  |  |  |
BridgeBio Equity Plan |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Performance-based milestone awards compensation expense |  |  |  | $ 1,600,000 | 200,000 |  |  |
Stock-based compensation |  |  |  | $ 23,435,000 | $ 24,181,000 |  |  |
BridgeBio Equity Plan | 2019 Employee Stock Purchase Plan |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Common shares reserved for future issuance | shares |  |  |  | 3,703,691 |  |  |  |
Stock-based compensation |  |  |  | $ 500,000 |  |  |  |
Number of common shares authorized to issue for issuance of awards | shares |  |  | 2,000,000 |  |  |  |  |
Percentage of automatic annual increase in number of shares reserved for future issuance |  |  | 1.00% |  |  |  |  |
Purchase price as percentage of lower of fair market value as of beginning or end of offering period |  |  | 85.00% |  |  |  |  |
Maximum percentage of employee payroll deduction for stock purchase |  |  | 15.00% |  |  |  |  |
Maximum number of shares eligible to purchase during offering period | shares |  |  | 3,500 |  |  |  |  |
BridgeBio Equity Plan | 2019 Employee Stock Purchase Plan | Employee Stock Purchase Plan |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Number of common shares authorized to issue for issuance of awards | shares |  |  | 2,000,000 |  |  |  |  |
Eidos | Eidos 2016 and 2018 Plans |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Number of options issued in exchange of subsidiary equity | shares |  |  |  | 2,776,672 |  |  |  |
Number of RSUs issued in exchange of subsidiary equity | shares |  |  |  | 25,972 |  |  |  |
Number of employees for replacement awards | Employee |  |  |  | 88 |  |  |  |
Incremental compensation cost for awards modification |  |  |  | $ 0 |  |  |  |

X
- Definition Incremental compensation cost for awards modification. + References No definition available. + Details
Name: | bbio_IncrementalCompensationCostForAwardsModification
Namespace Prefix: | bbio_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Maximum number of shares eligible to purchase during offering period. + References No definition available. + Details
Name: | bbio_MaximumNumberOfSharesEligibleToPurchaseDuringOfferingPeriod
Namespace Prefix: | bbio_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum percentage of employee payroll deduction for stock purchase. + References No definition available. + Details
Name: | bbio_MaximumPercentageOfEmployeePayrollDeductionForStockPurchase
Namespace Prefix: | bbio_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum potential performance based milestone awards to be settled in shares. + References No definition available. + Details
Name: | bbio_MaximumPotentialPerformanceBasedMilestoneAwardsToBeSettledInShares
Namespace Prefix: | bbio_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Number of employees for replacement awards. + References No definition available. + Details
Name: | bbio_NumberOfEmployeesForReplacementAwards
Namespace Prefix: | bbio_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of options issued in exchange of subsidiary equity. + References No definition available. + Details
Name: | bbio_NumberOfOptionsIssuedInExchangeOfSubsidiaryEquity
Namespace Prefix: | bbio_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of performance-based restricted stock awards issued in exchange of subsidiary equity. + References No definition available. + Details
Name: | bbio_NumberOfPerformanceBasedRestrictedStockAwardsIssuedInExchangeOfSubsidiaryEquity
Namespace Prefix: | bbio_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of performance-based stock options issued in exchange of subsidiary equity. + References No definition available. + Details
Name: | bbio_NumberOfPerformanceBasedStockOptionsIssuedInExchangeOfSubsidiaryEquity
Namespace Prefix: | bbio_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of restricted stock awards issued in exchange of subsidiary equity. + References No definition available. + Details
Name: | bbio_NumberOfRestrictedStockAwardsIssuedInExchangeOfSubsidiaryEquity
Namespace Prefix: | bbio_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of restricted stock units issued in exchange of subsidiary equity. + References No definition available. + Details
Name: | bbio_NumberOfRestrictedStockUnitsIssuedInExchangeOfSubsidiaryEquity
Namespace Prefix: | bbio_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of shares issued in exchange of subsidiary equity. + References No definition available. + Details
Name: | bbio_NumberOfSharesIssuedInExchangeOfSubsidiaryEquity
Namespace Prefix: | bbio_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of automatic annual increase in number of shares reserved for future issuance. + References No definition available. + Details
Name: | bbio_PercentageOfAutomaticAnnualIncreaseInNumberOfSharesReservedForFutureIssuance
Namespace Prefix: | bbio_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Performance-based milestone awards. + References No definition available. + Details
Name: | bbio_PerformanceBasedMilestoneAwards
Namespace Prefix: | bbio_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Performance based milestone awards compensation expense. + References No definition available. + Details
Name: | bbio_PerformanceBasedMilestoneAwardsCompensationExpense
Namespace Prefix: | bbio_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Performance based milestone awards compensation expense settled with equity. + References No definition available. + Details
Name: | bbio_PerformanceBasedMilestoneAwardsCompensationExpenseSettledWithEquity
Namespace Prefix: | bbio_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Performance based milestone awards period for recognition. + References No definition available. + Details
Name: | bbio_PerformanceBasedMilestoneAwardsPeriodForRecognition
Namespace Prefix: | bbio_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
Name: | us-gaap_AllocatedShareBasedCompensationExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Aggregate number of common shares reserved for future issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
Name: | us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
Name: | us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of cost to be recognized for option under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
Name: | us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Number of shares authorized for issuance under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of grantees affected by modification of award under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2)(ii) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationNumberOfEmployeesAffected
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of cost expensed and capitalized for award under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
Name: | us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Purchase price of common stock expressed as a percentage of its fair value. + References No definition available. + Details
Name: | us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=us-gaap_EmployeeStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShareRepurchaseProgramAxis=bbio_TwoThousandTwentyStockAndEquityAwardExchangeProgramMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_EmployeeStockOptionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_RestrictedStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=bbio_PerformanceBasedRestrictedStockAwardsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=bbio_PerformanceBasedStockOptionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=bbio_TwoThousandNineteenStockOptionAndIncentivePlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_CommonStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=bbio_TwoThousandTwentyOneStockOptionAndIncentivePlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=bbio_TwoThousandNineteenInducementEquityPlansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=bbio_EidosAwardExchangePlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=bbio_TwoThousandNineteenStockOptionAndIncentivePlanAndInducementEquityPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=bbio_BridgeBioServicesIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=bbio_TwoThousandNineteenEmployeeStockPurchasePlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=bbio_EidosTherapeuticsIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=bbio_TwoThousandSixteenEquityIncentivePlanAndTwoThousandEighteenStockOptionAndIncentivePlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |