Condensed Consolidated Statement of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Details
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	$ 5,213	$ 4,366	$ 24,529	$ 124,669
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Tax	250	(1,173)	7,219	10,734
Other Comprehensive Income (Loss), Available-for-sale Securities, Tax	90	(418)	2,599	3,830
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	160	(755)	4,620	6,904
Other Comprehensive Income (Loss), Net of Tax, Total	160	(755)	4,620	6,904
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	5,373	3,611	29,149	131,573
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest
Net Income (Loss) Attributable to Noncontrolling Interest	(16)	43	33	9,900
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Noncontrolling Interest	0	(47)	0	118
Other comprehensive (income) loss, net of tax, attributable to noncontrolling interests	0	(47)	0	118
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest	(16)	(4)	33	10,018
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	$ 5,389	$ 3,615	$ 29,116	$ 121,555