v3.22.2.2
Reinsurance - Additional Information (Detail)
9 Months Ended
Sep. 30, 2022
Stockholders' Equity, Total | Amounts Due From Reinsurers | Customers with Greater than 3% of Equity  
Effects of Reinsurance [Line Items]  
Unsecured amounts due from reinsurers exceeding a fixed percentage of stockholders equity 3.00%