Reinsurance Receivables - Schedule of Losses and LAE Incurred (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Effects of Reinsurance [Line Items]
Direct amount	$ 282,338	$ 282,986	$ 249,064
Ceded to other companies	(184,919)	(177,887)	(151,071)
Assumed from other companies	53,590	29,753	10,546
Net	151,009	134,852	108,539
Member benefit claims (1)	19,672	17,243	15,420
Total policy and contract benefits	$ 170,681	$ 152,095	$ 123,959
Losses Incurred, Percentage Assumed to Net	35.50%	22.10%	9.70%
Life Insurance
Effects of Reinsurance [Line Items]
Direct amount	$ 38,306	$ 36,488	$ 33,068
Ceded to other companies	(22,607)	(21,037)	(18,388)
Assumed from other companies	443	886	879
Net	$ 16,142	$ 16,337	$ 15,559
Losses Incurred, Percentage Assumed to Net	2.70%	5.40%	5.60%
Accident and Health Insurance
Effects of Reinsurance [Line Items]
Direct amount	$ 18,832	$ 18,986	$ 17,512
Ceded to other companies	(15,022)	(15,666)	(14,421)
Assumed from other companies	362	686	752
Net	$ 4,172	$ 4,006	$ 3,843
Losses Incurred, Percentage Assumed to Net	8.70%	17.10%	19.60%
Property and Liability Insurance
Effects of Reinsurance [Line Items]
Direct amount	$ 225,200	$ 227,512	$ 198,484
Ceded to other companies	(147,290)	(141,184)	(118,262)
Assumed from other companies	52,785	28,181	8,915
Net	$ 130,695	$ 114,509	$ 89,137
Losses Incurred, Percentage Assumed to Net	40.40%	24.60%	10.00%