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Stockholders' Equity - Narrative (Details) - USD ($)
$ / shares in Units, $ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Class of Warrant or Right [Line Items]    
Amount available for ordinary dividends of the Company's insurance company subsidiaries $ 18,519 $ 13,418
Common Class A    
Class of Warrant or Right [Line Items]    
Warrants outstanding (in shares) 2,429,210  
Warrants, exercise price (in dollars per share) $ 7.05  
Common stock    
Class of Warrant or Right [Line Items]    
Stock repurchase program, authorized amount $ 20,000