v3.25.2
Summary of Investments - Carrying Value of Commercial Mortgage Loans and Additional Information (Details) - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2025
Dec. 31, 2024
Financing Receivable, Credit Quality Indicator [Line Items]    
Total amortized cost $ 40,643 $ 40,967
Allowance for mortgage loan losses (1,147) (45)
Mortgage loans, net 39,496 40,922
Total mortgage loans | Commercial Mortgage Loans by Region    
Financing Receivable, Credit Quality Indicator [Line Items]    
Mortgage loans, net $ 40,643 $ 40,967
Percent of Total 100.00% 100.00%
Total mortgage loans | Commercial Mortgage Loans by Region | East North Central    
Financing Receivable, Credit Quality Indicator [Line Items]    
Mortgage loans, net $ 3,190 $ 3,218
Percent of Total 7.80% 7.90%
Total mortgage loans | Commercial Mortgage Loans by Region | Southern Atlantic    
Financing Receivable, Credit Quality Indicator [Line Items]    
Mortgage loans, net $ 16,919 $ 17,021
Percent of Total 41.70% 41.40%
Total mortgage loans | Commercial Mortgage Loans by Region | East South Central    
Financing Receivable, Credit Quality Indicator [Line Items]    
Mortgage loans, net $ 7,119 $ 7,257
Percent of Total 17.50% 17.70%
Total mortgage loans | Commercial Mortgage Loans by Region | New England    
Financing Receivable, Credit Quality Indicator [Line Items]    
Mortgage loans, net $ 6,588 $ 6,588
Percent of Total 16.20% 16.10%
Total mortgage loans | Commercial Mortgage Loans by Region | Middle Atlantic    
Financing Receivable, Credit Quality Indicator [Line Items]    
Mortgage loans, net $ 2,053 $ 2,078
Percent of Total 5.10% 5.10%
Total mortgage loans | Commercial Mortgage Loans by Region | Mountain    
Financing Receivable, Credit Quality Indicator [Line Items]    
Mortgage loans, net $ 1,992 $ 1,992
Percent of Total 4.90% 4.90%
Total mortgage loans | Commercial Mortgage Loans by Region | West North Central    
Financing Receivable, Credit Quality Indicator [Line Items]    
Mortgage loans, net $ 2,782 $ 2,813
Percent of Total 6.80% 6.90%
Total mortgage loans | Commercial Mortgage Loans by Property Type    
Financing Receivable, Credit Quality Indicator [Line Items]    
Mortgage loans, net $ 40,643 $ 40,967
Percent of Total 100.00% 100.00%
Total mortgage loans | Commercial Mortgage Loans by Property Type | Multifamily    
Financing Receivable, Credit Quality Indicator [Line Items]    
Mortgage loans, net $ 8,274 $ 8,362
Percent of Total 20.40% 20.40%
Total mortgage loans | Commercial Mortgage Loans by Property Type | Office    
Financing Receivable, Credit Quality Indicator [Line Items]    
Mortgage loans, net $ 10,442 $ 10,615
Percent of Total 25.60% 25.90%
Total mortgage loans | Commercial Mortgage Loans by Property Type | Industrial    
Financing Receivable, Credit Quality Indicator [Line Items]    
Mortgage loans, net $ 9,874 $ 9,912
Percent of Total 24.30% 24.20%
Total mortgage loans | Commercial Mortgage Loans by Property Type | Retail    
Financing Receivable, Credit Quality Indicator [Line Items]    
Mortgage loans, net $ 10,000 $ 10,000
Percent of Total 24.60% 24.40%
Total mortgage loans | Commercial Mortgage Loans by Property Type | Mixed use/Other    
Financing Receivable, Credit Quality Indicator [Line Items]    
Mortgage loans, net $ 2,053 $ 2,078
Percent of Total 5.10% 5.10%
Less than 65%    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total amortized cost $ 32,273 $ 32,499
65%-75%    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total amortized cost $ 8,370 $ 8,468