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

Leases (Details)

v3.21.4
Leases (Details) - Option
9 Months Ended 12 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Real estate on lease | Minimum    
Lessee, Lease, Description [Line Items]    
Lease term 1 year 1 year
Number of options to renew 1 1
Extension term of lease 5 years 5 years
Real estate on lease | Maximum    
Lessee, Lease, Description [Line Items]    
Lease term 8 years 8 years
Number of options to renew 2 2
Extension term of lease 10 years 10 years
Equipment on lease | Minimum    
Lessee, Lease, Description [Line Items]    
Lease term 1 year 1 year
Equipment on lease | Maximum    
Lessee, Lease, Description [Line Items]    
Lease term 3 years 3 years