Liability for Future Policy Benefits and Unpaid Claims Disclosure [Text Block] (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Prior Year Claims and Claims Adjustment Expense	$ (5,659)	$ (5,756)
Specialty Health Segment Member
Prior Year Claims and Claims Adjustment Expense	(3,778)	(1,636)
Specialty Health Segment Member | Health Insurance Product Line
Prior Year Claims and Claims Adjustment Expense	(2,584)	(1,200)
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	32,440
Group Disability, Life, DBL And PFL Segment Member
Prior Year Claims and Claims Adjustment Expense	(1,612)	(2,896)
Individual life annuities and other Segment Member
Prior Year Claims and Claims Adjustment Expense	(112)	(2,048)
Medical Stop-Loss Segment Member
Prior Year Claims and Claims Adjustment Expense	$ (157)	$ 824