v3.26.1
Policyholders' Liabilities (Guaranteed Minimum Crediting Rate) (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Jun. 30, 2025
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]    
Policyholder Account Balance $ 262,034 $ 235,362
Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0000 To 0149    
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]    
Policyholder Account Balance $ 32,288 $ 34,316
Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0000 To 0149 | Minimum    
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]    
Range of Guaranteed Minimum Crediting Rates: 0.00% 0.00%
Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0000 To 0149 | Maximum    
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]    
Range of Guaranteed Minimum Crediting Rates: 1.49% 1.49%
Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0150 To 0299    
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]    
Policyholder Account Balance $ 45,486 $ 37,774
Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0150 To 0299 | Minimum    
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]    
Range of Guaranteed Minimum Crediting Rates: 1.50% 1.50%
Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0150 To 0299 | Maximum    
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]    
Range of Guaranteed Minimum Crediting Rates: 2.99% 2.99%
Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0300 To 0449    
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]    
Policyholder Account Balance $ 153,445 $ 131,923
Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0300 To 0449 | Minimum    
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]    
Range of Guaranteed Minimum Crediting Rates: 3.00% 3.00%
Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0300 To 0449 | Maximum    
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]    
Range of Guaranteed Minimum Crediting Rates: 4.49% 4.49%
Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From Greater Than Or Equal To 0450    
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]    
Range of Guaranteed Minimum Crediting Rates: 4.50% 4.50%
Policyholder Account Balance $ 30,815 $ 31,349
Policyholder Account Balance, at Guaranteed Minimum Crediting Rate    
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]    
Policyholder Account Balance 162,377 140,658
Policyholder Account Balance, at Guaranteed Minimum Crediting Rate | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0000 To 0149    
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]    
Policyholder Account Balance 933 851
Policyholder Account Balance, at Guaranteed Minimum Crediting Rate | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0150 To 0299    
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]    
Policyholder Account Balance 3,795 3,905
Policyholder Account Balance, at Guaranteed Minimum Crediting Rate | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0300 To 0449    
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]    
Policyholder Account Balance 126,834 104,553
Policyholder Account Balance, at Guaranteed Minimum Crediting Rate | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From Greater Than Or Equal To 0450    
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]    
Policyholder Account Balance 30,815 31,349
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050    
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]    
Policyholder Account Balance 560 561
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0000 To 0149    
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]    
Policyholder Account Balance 0 0
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0150 To 0299    
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]    
Policyholder Account Balance 170 180
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0300 To 0449    
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]    
Policyholder Account Balance 390 381
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From Greater Than Or Equal To 0450    
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]    
Policyholder Account Balance 0 0
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150    
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]    
Policyholder Account Balance 26,227 26,995
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0000 To 0149    
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]    
Policyholder Account Balance 0 0
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0150 To 0299    
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]    
Policyholder Account Balance 6 6
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0300 To 0449    
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]    
Policyholder Account Balance 26,221 26,989
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From Greater Than Or Equal To 0450    
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]    
Policyholder Account Balance 0 0
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater    
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]    
Policyholder Account Balance 72,870 67,148
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0000 To 0149    
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]    
Policyholder Account Balance 31,355 33,465
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0150 To 0299    
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]    
Policyholder Account Balance 41,515 33,683
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0300 To 0449    
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]    
Policyholder Account Balance 0 0
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From Greater Than Or Equal To 0450    
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]    
Policyholder Account Balance $ 0 $ 0