Summary of Significant Accounting Policies Deferred Acquisition Costs and Cost of Customer Relationships Acquired (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Deferred Policy Acquisition Costs and Cost of Customer Relationship Acquired [Abstract]
First year commissions, percentage of capitalized deferred acquisition costs									94.60%
New business expense, percentage of capitalized deferred acquisition costs									5.40%
Number of years of available premiums									50 years
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance at beginning of period				$ 104,913				$ 149,249	$ 104,913	$ 149,249	$ 155,747
Capitalization of deferred policy acquisition costs									22,740	20,475	22,255
Amortization of deferred policy acquisition costs									(24,952)	(27,439)	(28,268)
Effect of Unrealized (gains) losses									37,679	(37,372)	(485)
Balance at end of period	$ 140,380				$ 104,913				140,380	104,913	149,249
Change in Accounting Estimate [Line Items]
Deferred policy acquisition costs	140,380				104,913				140,380	104,913	149,249
Life insurance	1,278,987				1,246,423				1,278,987	1,246,423
Decrease in future policy benefit reserves									36,444	29,923	41,712
Amortization of deferred policy acquisition costs									24,952	27,439	28,268
Federal income tax expense (benefit)	(44,950)	$ 72	$ 578	825	(3,887)	$ (256)	$ 1,465	1,349	(43,475)	(1,329)	7,115
Net income (loss)	38,137	$ (2,799)	$ 5,022	$ (3,573)	$ 1,538	$ (7,915)	$ (1,027)	(3,584)	36,787	(10,988)	(1,370)
Unusual or Infrequent Item, or Both [Member]
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance at beginning of period								$ 1,396		$ 1,396
Amortization of deferred policy acquisition costs									(122)		(1,396)
Balance at end of period	122								122		1,396
Change in Accounting Estimate [Line Items]
Deferred policy acquisition costs	122								122		1,396
Life insurance	$ 827								827		2,299
Decrease in future policy benefit reserves									(827)		(2,299)
Amortization of deferred policy acquisition costs									122		1,396
Income before federal income tax									705		903
Federal income tax expense (benefit)									148		190
Net income (loss)									$ 557		$ 713