v3.26.1
Intangible Assets (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Finite-Lived Intangible Assets [Line Items]      
Accumulated Amortization $ (3.3)   $ (3.5)
Indefinite-lived Intangible Assets [Line Items]      
Finite-Lived Intangible Assets, Accumulated Amortization 3.3   3.5
Intangible Assets, Gross (Excluding Goodwill) 16.9   17.3
Intangible Assets, Net (Excluding Goodwill) 13.6   13.8
Gross Carrying Amount 16.9   17.3
Accumulated Amortization (3.3)   (3.5)
Net Carrying Amount 13.6   13.8
Amortization expense related to intangible assets $ 0.2 $ 0.9  
Agency and carrier relationships      
Finite-Lived Intangible Assets [Line Items]      
Weighted- Average Useful Life Remaining (in years) 2 years 4 months 24 days    
Gross Carrying Amount $ 3.4   3.4
Accumulated Amortization (2.3)   (2.2)
Net Carrying Amount 1.1   1.2
Indefinite-lived Intangible Assets [Line Items]      
Gross Carrying Amount 3.4   3.4
Finite-Lived Intangible Assets, Accumulated Amortization 2.3   2.2
Finite-Lived Intangible Assets, Net 1.1   1.2
Accumulated Amortization $ (2.3)   (2.2)
Customer relationships      
Finite-Lived Intangible Assets [Line Items]      
Weighted- Average Useful Life Remaining (in years) 4 years 8 months 12 days    
Gross Carrying Amount $ 3.0   3.0
Accumulated Amortization (1.0)   (0.9)
Net Carrying Amount 2.0   2.1
Indefinite-lived Intangible Assets [Line Items]      
Gross Carrying Amount 3.0   3.0
Finite-Lived Intangible Assets, Accumulated Amortization 1.0   0.9
Finite-Lived Intangible Assets, Net 2.0   2.1
Accumulated Amortization (1.0)   (0.9)
Other      
Finite-Lived Intangible Assets [Line Items]      
Gross Carrying Amount 0.0   0.4
Accumulated Amortization 0.0   (0.4)
Net Carrying Amount 0.0   0.0
Indefinite-lived Intangible Assets [Line Items]      
Gross Carrying Amount 0.0   0.4
Finite-Lived Intangible Assets, Accumulated Amortization 0.0   0.4
Finite-Lived Intangible Assets, Net 0.0   0.0
Accumulated Amortization 0.0   (0.4)
State licenses and domain name      
Indefinite-lived Intangible Assets [Line Items]      
Net Carrying Amount $ 10.5   $ 10.5