Condensed Consolidated Statement of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Details
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	$ 14,307	$ 4,637	$ 19,316	$ 120,303
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Tax	2,988	7,204	6,969	11,907
Other Comprehensive Income (Loss), Available-for-sale Securities, Tax	1,049	2,563	2,509	4,248
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	1,939	4,641	4,460	7,659
Other Comprehensive Income (Loss), Net of Tax, Total	1,939	4,641	4,460	7,659
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	16,246	9,278	23,776	127,962
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest
Net Income (Loss) Attributable to Noncontrolling Interest	(24)	201	49	9,857
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	108	0	165
Other comprehensive (income) loss, net of tax, attributable to noncontrolling interests	0	108	0	165
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest	(24)	309	49	10,022
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	$ 16,270	$ 8,969	$ 23,727	$ 117,940