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Commitments and Contingencies - Additional Information (Detail) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2021
Loss Contingencies [Line Items]    
Maximum professional liability aggregate policy limit   $ 75,000,000.0
Transaction-related expenses $ 4,000,000.0  
Maximum [Member]    
Loss Contingencies [Line Items]    
Maximum self insured professional liability limit per claim   3,000,000.0
Minimum [Member]    
Loss Contingencies [Line Items]    
Maximum professional liability retention limit   $ 3,000,000.0