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Transfers from (to) noncontrolling interests Temporary Equity, Transfer (To) From Noncontrolling Interest Temporary equity transfer (to) from noncontrolling interest. Common stock, $0.001 par value; 500,000,000 shares authorized; 198,759,831 shares issued and 192,633,286 shares outstanding as of June 30, 2026, 202,369,129 shares issued and 194,771,957 shares outstanding as of December 31, 2025 Common Stock, Value, Issued 2027 Lessee, Operating Lease, Liability, to be Paid, Year One Repurchase of RSU shares to satisfy tax withholding Payment, Tax Withholding, Share-Based Payment Arrangement Accrued compensation and benefits Employee-related Liabilities, Current Schedule of Loans Balances Schedule of Long-Term Debt Instruments [Table Text Block] Cash, Cash Equivalents, Marketable Securities, and Restricted Cash Cash, Cash Equivalents, Marketable Securities and Restricted Cash [Policy Text Block] Cash, Cash Equivalents, Marketable Securities and Restricted Cash Minimum threshold percentage of aggregate principal by trustee or holders Minimum Threshold Percentage Of Aggregate Principal By Trustee Or Holders Minimum threshold percentage of aggregate principal by trustee or holders. 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Proceeds from royalty obligation under Royalty Purchase Agreement (as described in Note 9) Proceeds From Royalty Obligation Proceeds from royalty obligation under royalty purchase agreement. 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Leases [Abstract] Leases [Abstract] Other comprehensive loss: Other Comprehensive Income (Loss), Net of Tax [Abstract] Annual net sales Annual Net Sales, Threshold Annual net sales. Consolidated Entities Consolidated Entities [Domain] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Non-royalty revenue, percentage of revenue from sublicensees, term Non-Royalty Revenue, Percentage of Revenue From Sublicensees, Term Non-Royalty Revenue, Percentage of Revenue From Sublicensees, Term Entity Address, State or Province Entity Address, State or Province PEO Total Compensation Amount PEO Total Compensation Amount Notice period for termination of agreement Contract With Customer, Termination of Agreement, Notice Period Notice period for termination of agreement. 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Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Class of Stock [Axis] Class of Stock [Axis] Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Net product revenue Product [Member] Royalties on net product revenue Royalty Expense Total Intangible Asset, Finite-Lived, after Accumulated Amortization Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Royalty purchase agreement, proceeds from sale Royalty Purchase Agreement, Proceeds From Sale Royalty Purchase Agreement, Proceeds From Sale Net loss attributable to common stockholders of BridgeBio Net Income (Loss) Available to Common Stockholders, Basic Royalty obligation debt discount and issuance costs paid in cash Royalty Obligation Debt Discount and Issuance Costs Royalty obligation debt discount and issuance costs. 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Net cash used in investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Preferred stock, outstanding (in shares) Preferred Stock, Shares Outstanding Aggregate Face Values Aggregate principal amount Debt Instrument, Face Amount In-Licensing And Other Research And Development Agreements [Abstract] In-Licensing And Other Research And Development Agreements [Abstract] In-licensing and other research and development agreements. 2028 Lessee, Operating Lease, Liability, to be Paid, Year Two 2026 Note Offering 2026 Note Offering [Member] 2026 Note Offering Public Offerings and Share Repurchase Program Equity [Text Block] Operating costs and expenses: Costs and Expenses [Abstract] Security Exchange Name Security Exchange Name Expected life of notes Debt Instrument, Term Transfers from (to) noncontrolling interests Noncontrolling Interest, Period Increase (Decrease) Treasury stock, at cost; 7,597,172 shares as of June 30, 2026; 7,597,172 shares as of December 31, 2025 Treasury Stock, Common, Value Effective interest rate Debt Instrument, Interest Rate, Effective Percentage Initial Term Loan Initial Term Loan [Member] Initial term loan. 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Amortization of debt discount and issuance costs Amortization of Debt Issuance Costs and Discounts 2033 Notes, net 2033 Convertible Senior Notes [Member] 2033 Convertible Senior Notes Concentration Risk [Line Items] Concentration Risk [Line Items] Supplemental Disclosures of Noncash Investing and Financing Information: Noncash Investing and Financing Items [Abstract] Proceeds from issuance of term loans after deducting debt discount and issuance costs Proceeds from Issuance of Term Loans After Deducting Debt Discount and Issuance Costs Proceeds from issuance of term loans after deducting debt discount and issuance costs. Principal Long-Term Debt, Gross Credit Facility [Domain] Credit Facility [Domain] Operating activities: Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Customer E Customer E [Member] Customer E. 2033 Notes Initial Purchasers 2033 Notes Initial Purchasers [Member] 2033 Notes Initial Purchasers Accrued Amount, Cash Potential Milestone Accrued Amount Settlement In Cash Potential milestone accrued amount settlement in cash. Compensation Amount Outstanding Recovery Compensation Amount Individual: Individual [Axis] Unvested performance-based RSUs Unvested Performance Based Restricted Stock Unit [Member] Unvested performance-based restricted stock unit. Weighted-average shares used in computing net loss per share attributable to common stockholders of BridgeBio, diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Variable Conversion Price, Closing Date Variable Conversion Price, Closing Date [Member] Variable Conversion Price, Closing Date Variable Rate Component [Domain] Variable Rate Component [Domain] Preferred Stock, Dividend Rate, Terms [Domain] Entity Emerging Growth Company Entity Emerging Growth Company Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Milestone payments Potential Milestone Payments Potential milestone payments. 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All Executive Categories All Executive Categories [Member] Operating lease liabilities Increase (Decrease) in Operating Lease Liability Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Potential Fixed Monetary Amount, Total Potential Milestone Fixed Monetary Settlement Amount Potential milestone fixed monetary settlement amount. 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Unvested RSUs Unvested Restricted Stock Unit [Member] Unvested restricted stock unit. Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Investment Agreement Investment Agreement [Member] Investment Agreement Debt Disclosure [Abstract] Debt Disclosure [Abstract] 2020 Capped Call Transactions 2020 Capped Call Transactions [Member] Capped call transactions. Royalty revenue Royalty [Member] Debt Instrument, Name Debt Instrument, Name [Domain] Expiration Date Trading Arrangement Expiration Date 2030 Long-Term Debt, Maturity, Year Four Summary of Recognized Intangible Assets Intangible Asset, Finite-Lived, Amortization Expense [Table Text Block] Beneficial ownership limitation percentage Convertible Preferred Stock, Beneficial Ownership Limitation, Percentage Convertible Preferred Stock, Beneficial Ownership Limitation, Percentage Income Statement Location Location, Statement of Income, Balance [Axis] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Total cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Total stockholders’ deficit Beginning balance Ending balance Equity, Including Portion Attributable to Noncontrolling Interest Potential Fixed Monetary Amount, Stock Potential Milestone Fixed Monetary Amount Settlement In Stock Potential milestone fixed monetary amount settlement in stock. 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Cash, cash equivalents, and restricted cash at beginning of period Cash, cash equivalents, and restricted cash at end of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation Debt Debt Disclosure [Text Block] Seller Parties Seller Parties [Member] Seller parties. Repayment of term loans Repayments of Long-Term Debt Unamortized debt discount and issuance costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Debt issuance costs including initial purchasers discounts, legal and other professional fees Debt Issuance Costs, Net Deferred royalty obligations, current portion Deferred Royalty Obligations, Current Deferred royalty obligations. Deferred and unpaid issuance costs recorded to “Other current liabilities” Deferred And Unpaid Issuance Costs Recorded To Other Current Liabilities Deferred And Unpaid Issuance Costs Recorded To Other Current Liabilities Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Equity method investments Equity Method Investments Equity Component Equity Component [Domain] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Gondola Bio, LLC Gondola Bio Llc [Member] GondolaBio, LLC. 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Preferred stock, dividend rate, maximum percentage Preferred Stock, Dividend Rate, Maximum Percentage Preferred Stock, Dividend Rate, Maximum Percentage Counterparty Name [Domain] Counterparty Name [Domain] Stated interest rate Debt Instrument, Interest Rate, Stated Percentage Total BridgeBio stockholders’ deficit Equity, Attributable to Parent Total other expense, net Nonoperating Income (Expense) Funding payment received, net of certain transaction expenses Funding Payment Received Net of Certain Transaction Expenses Funding payment received net of certain transaction expenses. Assets Assets [Abstract] Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Amortized Cost Basis Debt Securities, Available-for-Sale, Amortized Cost Accounting Policies [Abstract] Accounting Policies [Abstract] Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] 2025 Note Offering 2025 Note Offering [Member] 2025 Note Offering Estimated fair value of deferred royalty obligation under funding agreement, net embedded derivative liability Deferred Royalty Obligation Under Funding Agreement Net of Embedded Derivative Liability, Fair Value Disclosure Deferred royalty obligation under funding agreement net of embedded derivative liability, fair value disclosure. 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Equity [Abstract] Equity [Abstract] Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Net cash used in operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Accounts Receivable Accounts Receivable [Member] Number of performance obligations Number Of Performance Obligations Number Of Performance Obligations Remainder of 2026 Long-Term Debt, Maturity, Remainder of Fiscal Year Income Statement [Abstract] Income Statement [Abstract] Stockholders’ deficit: Equity, Attributable to Parent [Abstract] Issuance of common stock under employee stock purchase plan ESPP (in shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans Document Transition Report Document Transition Report Assumed conversion of 2027 Notes Assumed Conversion Of Two Thousand Twenty Seven Notes [Member] Assumed conversion of two thousand twenty seven notes. 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Loss before income taxes Loss before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Commitments and contingencies (Note 7) Commitments and Contingencies Option Indexed to Issuer's Equity, Type [Domain] Option Indexed to Issuer's Equity, Type [Domain] Gross amount Intangible Asset, Finite-Lived, before Accumulated Amortization Finance lease, impairment loss Finance Lease, Impairment Loss Antidilutive Securities, Name Antidilutive Securities, Name [Domain] Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Finite-lived intangible asset, expected amortization, year four Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Four Net loss from equity method investments Net loss from equity method investments Loss from equity method investment Income (Loss) from Equity Method Investments Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Two Thousand Twenty Six Shelf Registration Statement and ATM Agreement Two Thousand Twenty Six Shelf Registration Statement and ATM Agreement [Member] Two Thousand Twenty Six Shelf Registration Statement and ATM Agreement Executive Category: Executive Category [Axis] Infigratinib for achondroplasia and hypochondroplasia Infigratinib for achondroplasia and hypochondroplasia [Member] Infigratinib. 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[Member] Eidos Therapeutics, Inc. Alexion Alexion [Member] Alexion. 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Current assets: Assets, Current [Abstract] Accrued research and development liabilities Increase Decrease In Accrued Research And Development Liabilities Increase (decrease) in accrued research and development liabilities. Gondola Bio, LLC Gondola Bio Limited Liabilty Company [Member] Gondola bio limited liabilty company. Non-PEO NEO Non-PEO NEO [Member] Senior Notes Senior Notes [Member] Entity Address, Address Line One Entity Address, Address Line One Operating lease right-of-use assets obtained in exchange for operating lease obligations Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Estimated shares issuable under the ESPP Estimated Shares Issuable Employee Stock Purchase Plan [Member] Estimated shares issuable employee stock purchase plan. 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