Discontinued Operations - Income from Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Revenue:
Health premium	$ (71)	$ 56,774	$ (295)	$ 111,473
Benefits and expenses:
Health policyholder benefits	(252)	51,871	3,932	113,352
Amortization of deferred acquisition costs	0	932	0	1,940
Commissions, premium taxes, and non-deferred acquisition expenses	154	3,792	730	8,901
Other operating expense	166	1,510	777	3,290
Total benefits and expenses	68	58,105	5,439	127,483
Income (loss) before income taxes for discontinued operations	(139)	(1,331)	(5,734)	(16,010)
Income tax benefit (expense)	49	466	2,007	5,604
Income (loss) from discontinued operations	$ (90)	$ (865)	$ (3,727)	$ (10,406)