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Stock-Based Compensation - Additional Information (Details) |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended |  |  |
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Nov. 18, 2020 USD ($) Grantee shares | Apr. 22, 2020 USD ($) Grantee shares | Jun. 22, 2019 shares | Jun. 30, 2025 USD ($) $ / shares shares | Jun. 30, 2024 shares | Jun. 30, 2025 USD ($) $ / shares shares | Jun. 30, 2024 USD ($) | Jun. 30, 2025 USD ($) $ / shares shares | Jun. 30, 2024 USD ($) shares | Dec. 31, 2023 USD ($) TradingDay shares | Dec. 31, 2024 $ / shares shares | Feb. 28, 2023 shares | Dec. 31, 2021 shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation | $ |  |  |  |  |  | $ 37,339,000 | $ 21,451,000 | $ 66,729,000 | $ 50,301,000 |  |  |  |
BridgeBio Equity Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Performance-based milestone awards compensation expense | $ |  |  |  |  |  | 100,000 |  | 3,600,000 | 11,800,000 |  |  |  |
Stock-based compensation expense, capitalized to inventory | $ |  |  |  |  |  | 1,100,000 |  | $ 1,900,000 |  |  |  |  |
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 |  |  |  |  |  |  |  | $ 11.88 |  |  |  |  |
Expected volatility, Minimum |  |  |  |  |  |  |  | 52.00% |  |  |  |  |
Expected volatility, Maximum |  |  |  |  |  |  |  | 60.90% |  |  |  |  |
Risk-free interest rate, Minimum |  |  |  |  |  |  |  | 4.30% |  |  |  |  |
Risk-free interest rate, Maximum |  |  |  |  |  |  |  | 5.00% |  |  |  |  |
Dividend yield |  |  |  |  |  |  |  | 0.00% |  |  |  |  |
Expected term (in years) |  |  |  |  |  |  |  | 6 months |  |  |  |  |
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 | $ |  |  |  |  |  |  | 8,900,000 |  | 8,700,000 |  |  |  |
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 Option |  |  |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted-average grand date fair value of options granted | $ / shares |  |  |  |  |  |  |  | $ 30.15 |  |  |  |  |
Expected volatility, Minimum |  |  |  |  |  |  |  | 94.00% |  |  |  |  |
Expected volatility, Maximum |  |  |  |  |  |  |  | 94.70% |  |  |  |  |
Dividend yield |  |  |  |  |  |  |  | 0.00% |  |  |  |  |
Expected term (in years) |  |  |  |  |  |  |  | 6 years |  |  |  |  |
Employee Stock Option | 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] |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation cost associated with performance-based milestone awards | $ |  |  |  |  |  |  |  |  | 1,600,000 |  |  |  |
Number of RSAs issued in exchange of subsidiary equity | shares |  | 50,145 |  |  |  |  |  |  |  |  |  |  |
Performance based milestone awards compensation expense settled with equity | $ |  |  |  |  |  | 200,000 | (1,000,000) | $ 400,000 | 900,000 |  |  |  |
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 |  |  |  |  |  |  |  |  |  |  |
2021 A&R Plan | Market-Based Restricted Stock Units (RSUs) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation | $ |  |  |  |  |  | 1,000,000 | 2,400,000 | 2,000,000 | 4,800,000 |  |  |  |
Unrecognized compensation cost | $ |  |  |  | $ 500,000 |  | $ 500,000 |  | $ 500,000 |  |  |  |  |
Unrecognized compensation cost, period for recognition |  |  |  |  |  |  |  | 1 month 6 days |  |  |  |  |
Grant-date fair value of RSUs | $ |  |  |  |  |  |  |  |  |  | $ 10,800,000 |  |  |
Expected volatility, Minimum |  |  |  |  |  |  |  |  |  | 96.80% |  |  |
Expected volatility, Maximum |  |  |  |  |  |  |  |  |  | 113.70% |  |  |
Risk-free interest rate, Minimum |  |  |  |  |  |  |  |  |  | 4.22% |  |  |
Risk-free interest rate, Maximum |  |  |  |  |  |  |  |  |  | 4.35% |  |  |
Dividend yield |  |  |  |  |  |  |  |  |  | 0.00% |  |  |
Unvested shares of restricted stock outstanding | shares |  |  |  | 375,000 |  | 375,000 |  | 375,000 |  |  |  |  |
Weighted average grant date fair value | $ / shares |  |  |  | $ 28.73 |  | $ 28.73 |  | $ 28.73 |  |  |  |  |
2021 A&R Plan | Market-Based Restricted Stock Units (RSUs) [Member] | BridgeBio Equity Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based payment arrangement, consecutive trading days | TradingDay |  |  |  |  |  |  |  |  |  | 20 |  |  |
2021 A&R Plan | Market-Based Restricted Stock Units (RSUs) [Member] | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Expected term (in years) |  |  |  |  |  |  |  |  |  | 3 years |  |  |
2021 A&R Plan | Market-Based Restricted Stock Units (RSUs) [Member] | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Expected term (in years) |  |  |  |  |  |  |  |  |  | 6 years |  |  |
2021 A&R Plan | Market-Based Restricted Stock Units (RSUs) [Member] | Maximum | BridgeBio Equity Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based payment arrangement, performance period from date of grant |  |  |  |  |  |  |  |  |  | 6 years |  |  |
2021 A&R Plan | Performance-Based RSUs |  |  |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation | $ |  |  |  |  |  | $ 700,000 |  | $ 800,000 |  |  |  |  |
Unrecognized compensation cost | $ |  |  |  | $ 5,800,000 |  | $ 5,800,000 |  | $ 5,800,000 |  |  |  |  |
Unrecognized compensation cost, period for recognition |  |  |  |  |  |  |  | 2 years 1 month 6 days |  |  |  |  |
Unvested shares of restricted stock outstanding | shares |  |  |  | 194,943 |  | 194,943 |  | 194,943 |  |  |  |  |
Weighted average grant date fair value | $ / shares |  |  |  | $ 33.75 |  | $ 33.75 |  | $ 33.75 |  |  |  |  |
A&R 2019 Plan and 2019 Inducement Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total intrinsic value of options exercised | $ |  |  |  |  |  |  |  | $ 8,000,000 |  |  |  |  |
Weighted-average grand date fair value of options granted | $ / shares |  |  |  |  |  |  |  | $ 30.15 |  |  |  |  |
A&R 2019 Plan and 2019 Inducement Plan | Employee Stock Option |  |  |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation | $ |  |  |  |  |  | $ 4,200,000 | 5,900,000 | $ 8,600,000 | 12,200,000 |  |  |  |
Unrecognized compensation cost | $ |  |  |  | $ 19,000,000 |  | $ 19,000,000 |  | $ 19,000,000 |  |  |  |  |
Unrecognized compensation cost, period for recognition |  |  |  |  |  |  |  | 1 year 7 months 6 days |  |  |  |  |
A&R 2019 Plan and 2019 Inducement Plan | Employee Stock Option | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Vesting period |  |  |  |  |  |  |  | 3 years |  |  |  |  |
A&R 2019 Plan and 2019 Inducement Plan | Employee Stock Option | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Vesting period |  |  |  |  |  |  |  | 4 years |  |  |  |  |
A&R 2019 Plan and 2019 Inducement Plan | Restricted Stock Units (RSUs) and Restricted Stock Awards (RSAs) | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Vesting period |  |  |  |  |  |  |  | 2 years |  |  |  |  |
A&R 2019 Plan and 2019 Inducement Plan | Restricted Stock Units (RSUs) and Restricted Stock Awards (RSAs) | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Vesting period |  |  |  |  |  |  |  | 4 years |  |  |  |  |
A&R 2019 Plan and 2019 Inducement Plan | Restricted Stock Units (RSUs) |  |  |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Unvested shares of restricted stock outstanding | shares |  |  |  | 11,852,773 |  | 11,852,773 |  | 11,852,773 |  |  | 10,272,798 |  |
Weighted average grant date fair value | $ / shares |  |  |  | $ 26.06 |  | $ 26.06 |  | $ 26.06 |  |  | $ 21.91 |  |
2019 Employee Stock Purchase Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares reserved for future issuance | shares |  |  |  | 3,205,677 |  | 3,205,677 |  | 3,205,677 |  |  |  |  |
Stock-based compensation | $ |  |  |  |  |  | $ 700,000 | $ 500,000 | $ 1,400,000 | $ 1,100,000 |  |  |  |
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% |  |  |  |  |  |  |  |  |  |
Employees purchased under ESPP, shares | shares |  |  |  |  |  |  |  | 156,097 | 93,344 |  |  |  |
Employees purchased under ESPP | $ |  |  |  |  |  |  |  | $ 3,200,000 | $ 2,400,000 |  |  |  |
2019 Employee Stock Purchase Plan | BridgeBio Equity Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
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 |  |  |  |  |  |  |  |  |  |
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 |  |  |  |  |  |  |  |  |  |
Common Stock | A&R 2019 Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares reserved for future issuance | shares |  |  |  |  |  |  |  |  |  | 3,750,000 |  | 2,000,000 |
Common Stock | 2021 A&R Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares reserved for future issuance | shares |  |  |  | 10,160,349 |  | 10,160,349 |  | 10,160,349 |  |  |  |  |
Increase (decrease) in common shares reserved for future issuance | shares |  |  |  | 5,000,000 | 6,500,000 |  |  |  |  |  |  |  |
Common Stock | A&R 2019 Inducement Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares reserved for future issuance | shares |  |  |  | 891,435 |  | 891,435 |  | 891,435 |  |  |  |  |
Common Stock | Eidos Award Exchange Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares reserved for future issuance | shares |  |  |  |  |  |  |  |  |  |  |  |  | 2,802,644

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