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

Summary of Significant Accounting Policies - Narrative (Details)

v3.22.1
Summary of Significant Accounting Policies - Narrative (Details)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2022
USD ($)
segment
Dec. 31, 2021
USD ($)
segment
Jan. 01, 2022
USD ($)
Dec. 31, 2020
USD ($)
Property, Plant and Equipment [Line Items]        
Cash and cash equivalents $ 5,938 $ 20,523   $ 22,076
Number of operating segments | segment 1 1    
Number of reportable segments | segment 1 1    
Vesting period 3 years 3 years    
Operating lease right-of-use assets $ 12,985   $ 10,100  
Present value of operating lease liabilities $ 13,244   10,200  
Accounting Standards Update 2016-02 | Minimum | Subsequent Event        
Property, Plant and Equipment [Line Items]        
Operating lease right-of-use assets     8,000  
Present value of operating lease liabilities     8,000  
Accounting Standards Update 2016-02 | Maximum | Subsequent Event        
Property, Plant and Equipment [Line Items]        
Operating lease right-of-use assets     11,000  
Present value of operating lease liabilities     $ 11,000