General form of registration statement for all companies including face-amount certificate companies

Fair Value of Financial Instruments - Summary of Level 3 promissory notes (Detail)

v3.21.2
Fair Value of Financial Instruments - Summary of Level 3 promissory notes (Detail) - Promissory Note [Member]
$ in Thousands
12 Months Ended
Dec. 31, 2019
USD ($)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]  
Balance at the beginning of the year $ 24,000
Accrued interest 2,400
Realized gain on conversion of promissory notes (4,113)
Balance at the ending of the year $ 22,287