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Intangible Assets (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Acquired Intangible Assets [Line Items]    
Net Value $ 14,000 $ 19,000
Weighted Average Amortization Period 13 years 7 months 6 days  
Cost $ 25,800 25,800
Accumulated Amortization 5,739 5,367
Impairment 5,251 172
Net Value 800 1,300
Net Value 14,810 20,261
Trademarks    
Acquired Intangible Assets [Line Items]    
Net Value 4,800 4,800
Cost 4,800 4,800
Trade names    
Acquired Intangible Assets [Line Items]    
Net Value 4,200 4,200
Cost 4,200 4,200
State insurance licenses    
Acquired Intangible Assets [Line Items]    
Net Value 5,000 10,000
Cost 10,000 $ 10,000
Impairment $ 5,000  
Impairment, Intangible Asset, Indefinite-Lived (Excluding Goodwill), Statement of Income or Comprehensive Income [Extensible Enumeration] Other Cost and Expense, Operating Other Cost and Expense, Operating
Customer relationships    
Acquired Intangible Assets [Line Items]    
Weighted Average Amortization Period 15 years 15 years
Cost $ 5,300 $ 5,300
Accumulated Amortization 4,490 4,137
Impairment 0 0
Net Value $ 810 $ 1,163
Agent Relationships    
Acquired Intangible Assets [Line Items]    
Weighted Average Amortization Period 10 years 10 years
Cost $ 900 $ 900
Accumulated Amortization 649 630
Impairment 251 172
Net Value $ 0 $ 98
Trade names    
Acquired Intangible Assets [Line Items]    
Weighted Average Amortization Period 7 years 7 years
Cost $ 600 $ 600
Accumulated Amortization 600 600
Impairment 0 0
Net Value $ 0 $ 0