Income Taxes, Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current [Abstract]
Federal	$ 1,067	$ 379	$ 263
State	1,867	(7)	(4,295)
Total current	2,934	372	(4,032)
Deferred [Abstract]
Federal	0	0	(8,948)
State	0	0	(2,427)
Total deferred	0	0	(11,375)
Income tax expense (benefit)	$ 2,934	$ 372	(15,407)
Tax benefit related to unrealized gains on investments in available-for-sale securities recorded in continuing operations			(12,800)
Tax expense related to unrealized gains on investments in available-for-sale securities recorded in other comprehensive income			$ 12,800