Investments - Schedule of Net Investment Gains (Losses) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Schedule Of Gain Loss On Investments Including Marketable Securities And Investments Held At Cost Income Statement Reported Amounts Summary [Line Items]
Investment expenses		$ (7)		$ (19)
Gains (losses) from sales	$ (201)	269	$ (105)	522
Total net gains (losses) on investments	111	1,297	1,762	2,813
Fixed Maturities
Schedule Of Gain Loss On Investments Including Marketable Securities And Investments Held At Cost Income Statement Reported Amounts Summary [Line Items]
Gains (losses) from sales	(185)	228	(131)	488
Equity Securities
Schedule Of Gain Loss On Investments Including Marketable Securities And Investments Held At Cost Income Statement Reported Amounts Summary [Line Items]
Valuation change of Equity securities - appreciation (decline):		747		1,402
Other Invested Assets
Schedule Of Gain Loss On Investments Including Marketable Securities And Investments Held At Cost Income Statement Reported Amounts Summary [Line Items]
Valuation change of Other invested assets - appreciation (decline):	312	281	1,867	889
Mortgage Loans
Schedule Of Gain Loss On Investments Including Marketable Securities And Investments Held At Cost Income Statement Reported Amounts Summary [Line Items]
Gains (losses) from sales	$ (16)	$ 48	$ 26	$ 53