v3.26.1
Goodwill and intangible assets - Goodwill Rollforward (Details) - USD ($)
$ in Thousands
12 Months Ended
Oct. 01, 2025
Dec. 31, 2025
Dec. 31, 2024
Goodwill      
Goodwill, Gross   $ 55,697  
Balance, beginning of period   55,697  
Accumulated impairment losses¹   (25,504)  
Goodwill impairment   (25,504) $ 0
Balance, end of period   30,193 55,697
Long-Term Care      
Goodwill      
Goodwill impairment $ (25,500)    
Insurance Solutions      
Goodwill      
Balance, beginning of period   55,697  
Goodwill impairment   (25,504) 0
Balance, end of period   30,193 55,697
Insurance Solutions | Multi Year Guaranteed Annuities      
Goodwill      
Goodwill, Gross   30,193  
Balance, beginning of period   30,193  
Accumulated impairment losses¹   0  
Goodwill impairment   0  
Balance, end of period   30,193 30,193
Insurance Solutions | Long-Term Care      
Goodwill      
Goodwill, Gross   25,504  
Balance, beginning of period   25,504  
Accumulated impairment losses¹   (25,504)  
Goodwill impairment   (25,504)  
Balance, end of period   $ 0 $ 25,504