XML 56 R46.htm IDEA: XBRL DOCUMENT v3.22.4
Reinsurance - Additional Information (Detail)
3 Months Ended
Mar. 31, 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%