Reinsurance Receivables - Schedule of Losses and LAE Incurred (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Effects of Reinsurance [Line Items]
Direct amount	$ 435,343	$ 347,528	$ 282,338
Ceded to other companies	291,799	225,122	184,919
Assumed from other companies	109,929	55,842	53,590
Total losses incurred	253,473	178,248	151,009
Member benefit claims	73,539	58,650	19,672
Total policy and contract benefits	$ 327,012	$ 236,898	$ 170,681
Percentage of amount - assumed to net	43.40%	31.30%	35.50%
Life insurance
Effects of Reinsurance [Line Items]
Direct amount	$ 59,526	$ 46,268	$ 38,306
Ceded to other companies	34,030	27,292	22,607
Assumed from other companies	869	645	443
Total losses incurred	$ 26,365	$ 19,621	$ 16,142
Percentage of amount - assumed to net	3.30%	3.30%	2.70%
Accident and health insurance
Effects of Reinsurance [Line Items]
Direct amount	$ 21,509	$ 18,354	$ 18,832
Ceded to other companies	18,091	15,715	15,022
Assumed from other companies	2,225	7,032	362
Total losses incurred	$ 5,643	$ 9,671	$ 4,172
Percentage of amount - assumed to net	39.40%	72.70%	8.70%
Property and liability insurance
Effects of Reinsurance [Line Items]
Direct amount	$ 354,308	$ 282,906	$ 225,200
Ceded to other companies	239,678	182,115	147,290
Assumed from other companies	106,835	48,165	52,785
Total losses incurred	$ 221,465	$ 148,956	$ 130,695
Percentage of amount - assumed to net	48.20%	32.30%	40.40%