Condensed Consolidated Statement of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Details
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 7,048	$ 5,009
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, before Tax	(5,128)	3,981
Other Comprehensive Income (Loss), Securities, Available-for-sale, Tax	(1,091)	1,460
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax	(4,037)	2,521
Other Comprehensive Income (Loss), Net of Tax	(4,037)	2,521
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	3,011	7,530
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest
Net Income (Loss) Attributable to Noncontrolling Interest	87	73
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest	0	0
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest	87	73
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	$ 2,924	$ 7,457