Supplementary Insurance Information, for Insurance Companies Disclosure: Supplementary Insurance Information For Insurance Companies Disclosure Table Text Block (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Deferred Policy Acquisition Cost	$ 0	$ 0
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Liability for Future Policy Benefit, Loss, Claim and Loss Expense	510,660	526,986
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Unearned Premium	5,557	6,666
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Premium Revenue	321,248	282,266
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Net Investment Income	15,021	14,430
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Benefit, Claim, Loss and Settlement Expenses	144,206	135,054
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Amortization of Deferred Policy Acquisition Cost	0	0
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Operating Expense	169,028	157,104
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Premium Written	320,202	279,121
Specialty Health Segment Member
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Deferred Policy Acquisition Cost	0	0
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Liability for Future Policy Benefit, Loss, Claim and Loss Expense	38,154	53,859
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Unearned Premium	3,635	3,292
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Premium Revenue	184,512	181,851
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Net Investment Income	4,386	4,251
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Benefit, Claim, Loss and Settlement Expenses	60,749	84,380
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Amortization of Deferred Policy Acquisition Cost	0	0
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Operating Expense	113,454	106,223
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Premium Written	184,513	179,164
Group disability, life, DBL and PFL
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Deferred Policy Acquisition Cost	0	0
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Liability for Future Policy Benefit, Loss, Claim and Loss Expense	148,012	137,765
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Unearned Premium	1,737	3,193
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Premium Revenue	136,709	99,953
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Net Investment Income	7,029	6,469
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Benefit, Claim, Loss and Settlement Expenses	82,948	52,792
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Amortization of Deferred Policy Acquisition Cost	0	0
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Operating Expense	42,818	35,857
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Premium Written	135,662	99,495
Individual life annuities and other Segment Member
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Deferred Policy Acquisition Cost	0	0
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Liability for Future Policy Benefit, Loss, Claim and Loss Expense	324,063	333,105
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Unearned Premium	185	181
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Premium Revenue	27	210
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Net Investment Income	1,535	1,536
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Benefit, Claim, Loss and Settlement Expenses	796	241
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Amortization of Deferred Policy Acquisition Cost	0	0
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Operating Expense	1,572	2,411
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Premium Written	27	209
Medical Stop-Loss Segment Member
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Deferred Policy Acquisition Cost	0	0
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Liability for Future Policy Benefit, Loss, Claim and Loss Expense	431	2,257
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Unearned Premium	0	0
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Premium Revenue	0	252
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Net Investment Income	39	313
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Benefit, Claim, Loss and Settlement Expenses	(287)	(2,359)
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Amortization of Deferred Policy Acquisition Cost	0	0
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Operating Expense	150	2,127
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Premium Written	0	253
Corporate
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Deferred Policy Acquisition Cost	0	0
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Liability for Future Policy Benefit, Loss, Claim and Loss Expense	0	0
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Unearned Premium	0	0
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Premium Revenue	0	0
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Net Investment Income	2,032	1,861
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Benefit, Claim, Loss and Settlement Expenses	0	0
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Amortization of Deferred Policy Acquisition Cost	0	0
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Operating Expense	11,034	10,486
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Premium Written	$ 0	$ 0