Consolidated Statements of Earnings and Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Change in unrealized gains (losses), deferred taxes	$ 36,468	$ (83,332)	$ 193,881
Reclassification for net realized capital gains and other than temporary impairment losses, taxes	(36,281)	(37,044)	(77,042)
Change in unrealized currency translation adjustment, deferred taxes	$ (3,889)	$ (7,940)	$ (21,464)