Stock-Based Compensation - Summary of Stock Based Compensation for Employees and Non Employees (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Employee And Non Employee Service Share Based Compensation [Line Items]
Total stock-based compensation	$ 28,305	$ 32,035	$ 52,586	$ 66,931
BridgeBio Equity Plan
Employee And Non Employee Service Share Based Compensation [Line Items]
Total stock-based compensation	28,145	31,695	52,326	62,726
Other Subsidiaries Equity Plan
Employee And Non Employee Service Share Based Compensation [Line Items]
Total stock-based compensation	160	340	260	4,205
Research and Development Expense
Employee And Non Employee Service Share Based Compensation [Line Items]
Total stock-based compensation	14,352	19,284	22,909	41,733
Research and Development Expense | BridgeBio Equity Plan
Employee And Non Employee Service Share Based Compensation [Line Items]
Total stock-based compensation	14,194	19,163	22,680	40,463
Research and Development Expense | Other Subsidiaries Equity Plan
Employee And Non Employee Service Share Based Compensation [Line Items]
Total stock-based compensation	158	121	229	1,270
Selling, General and Administrative Expenses
Employee And Non Employee Service Share Based Compensation [Line Items]
Total stock-based compensation	13,953	12,751	28,505	25,198
Selling, General and Administrative Expenses | BridgeBio Equity Plan
Employee And Non Employee Service Share Based Compensation [Line Items]
Total stock-based compensation	13,951	12,532	28,474	22,263
Selling, General and Administrative Expenses | Other Subsidiaries Equity Plan
Employee And Non Employee Service Share Based Compensation [Line Items]
Total stock-based compensation	$ 2	$ 219	31	$ 2,935
Restructuring, Impairment and Related Charges
Employee And Non Employee Service Share Based Compensation [Line Items]
Total stock-based compensation			1,172
Restructuring, Impairment and Related Charges | BridgeBio Equity Plan
Employee And Non Employee Service Share Based Compensation [Line Items]
Total stock-based compensation			$ 1,172