Reinsurance - Summary of Recoverable and Premium Payable (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Reinsurance Disclosures [Abstract]    
Reinsurance recoverable on paid claims   $ 481
Reinsurance recoverable on unpaid claims 12,344
Reinsurance premium payable  
Reinsurance recoverable, net   $ 481