Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]: Disposal Groups, Including Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax	$ 0	$ 0	$ 0	$ 117,636
Discontinued Operation, Tax Effect of Discontinued Operation	0	0	0	7,724
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	$ 0	0	$ 0	109,912
Risk Solutions Sale and Coinsurance Transaction Member | Discontinued Operations, Disposed of by Sale
Discontinued Operation, Tax Effect of Discontinued Operation				7,724
Risk Solutions Sale and Coinsurance Transaction Member | Discontinued Operations, Disposed of by Sale | Medical Stop-Loss Segment Member
Disposal Group, Including Discontinued Operation, Revenue		0		6,406
Disposal Group, Including Discontinued Operation, General and Administrative Expense		0		5,689
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, before Income Tax		0		717
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax		0		116,919
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax		0		117,636
Discontinued Operation, Tax Effect of Discontinued Operation		0		7,724
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest		$ 0		$ 109,912