Accumulated Other Comprehensive (Loss) Income - Changes in Accumulated Other Comprehensive (Loss) Income, Net of Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Accumulated Other Comprehensive Income Loss [Line Items]
Balance – beginning of period			$ 172,904
Other comprehensive (loss) income
Unrealized holding (loss) gains from changes in the market value of securities	$ (20,876)	$ 8,232	(45,520)	$ (5,832)
Impact on Policy benefit liabilities of changes in market value of securities	1,796	(828)	4,520	1,040
Change in net unrealized investment (losses) gains on allocated to policyholder dividend obligations	343	(859)	2,989	595
Deferred Income tax benefit (expense)	3,934	(1,374)	7,982	882
Total other comprehensive (loss) income	(14,803)	5,171	(30,029)	(3,315)
Balance – end of period	134,864	184,688	134,864	184,688
Net Unrealized Gains (Losses) on Investments with OTTI Losses
Accumulated Other Comprehensive Income Loss [Line Items]
Balance – beginning of period			362	362
Other comprehensive (loss) income
Balance – end of period	362	362	362	362
Net Unrealized Gains (Losses) on Other Investments
Accumulated Other Comprehensive Income Loss [Line Items]
Balance – beginning of period			10,567	16,239
Other comprehensive (loss) income
Unrealized holding (loss) gains from changes in the market value of securities	(20,876)	8,232	(45,520)	(5,832)
Impact on Policy benefit liabilities of changes in market value of securities	1,796	(828)	4,520	1,040
Change in net unrealized investment (losses) gains on allocated to policyholder dividend obligations	343	(859)	2,989	595
Deferred Income tax benefit (expense)	3,934	(1,374)	7,982	882
Total other comprehensive (loss) income	(14,803)	5,171	(30,029)	(3,315)
Balance – end of period	(19,462)	12,924	(19,462)	12,924
Accumulated Other Comprehensive (Loss) Income
Accumulated Other Comprehensive Income Loss [Line Items]
Balance – beginning of period	(4,297)	8,115	10,929	16,601
Other comprehensive (loss) income
Balance – end of period	$ (19,100)	$ 13,286	$ (19,100)	$ 13,286