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

Leases - Additional Information (Detail)

v3.22.2
Leases - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Lessee, Operating Lease, Term of Contract 8 years  
Lessee, Operating Lease, Option to Extend 5 years  
Lessee, Operating Lease, Increase in Discount Rate 3.00%  
Operating Lease, Cost $ 7,400 $ 6,900
Variable Lease, Cost 600 700
Cash paid for amounts included in the measurement of operating lease liabilities 6,800 6,600
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability $ 0 $ 0
Operating Lease, Weighted Average Remaining Lease Term 5 years 3 months 18 days 6 years 1 month 6 days
Operating Lease, Weighted Average Discount Rate, Percent 15.30% 15.30%
Maximum [Member]    
Lessee, Operating Lease, Term of Contract 6 years  
Minimum [Member]    
Lessee, Operating Lease, Term of Contract 1 year