Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Unrealized gains (losses) on investments arising during the period, deferred tax	$ 12,615	$ (5,686)	$ 11,023	$ (12,810)
Reclassification adjustment for net realized (gains) losses included in net income, deferred tax	70	(1,357)	663	(879)
Non credit other-than-temporary impairments arising during the period, deferred tax	17	(40)	10	(69)
Reclassification adjustment for non credit other-than-temporary impairment losses recognized in net income, deferred tax	(143)	0	(170)	0
Change in foreign currency translation gains (losses), deferred tax	$ (422)	$ (785)	$ (7)	$ 2,800