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Equity Based Compensation - Summary of Compensation Expense (Detail) - USD ($)
 3 Months Ended 12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Dec. 31, 2020
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Total equity-based compensation expense $ 52,686,000 $ 175,000 $ 699,000,000 $ 730,000,000
Research and Development Expense [Member]        
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Total equity-based compensation expense 17,367,000      
General and Administrative Expense [Member]        
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Total equity-based compensation expense $ 35,319,000 $ 175,000