Consolidated Statements of Comprehensive Income (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Unrealized gains (losses) on investments arising during the period, deferred tax	$ 8,231	$ 2,676	$ 4,951	$ 14,988
Reclassification adjustment for net realized (gains) losses included in net income, deferred tax	2,581	322	3,088	3,442
Non credit other-than-temporary impairments arising during the period, deferred tax	14	30	55	134
Reclassification adjustment for non credit other-than-temporary impairment losses recognized in net income, deferred tax	0	0	0	0
Change in foreign currency translation gains (losses), deferred tax	$ 0	$ 867	$ 2,800	$ 108