Consolidated Statements Of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenues
Gross premiums written	$ 922,090	$ 862,133
Net premiums written	544,136	511,675
Increase in unearned premiums	(178,091)	(158,069)
Net premiums earned	366,045	353,606
Net investment income	54,325	28,863
Net foreign exchange gains (losses)	8,165	(1,692)
Equity in (losses) earnings of other ventures	(1,507)	1,611
Other income	1,665	4,079
Net realized and unrealized gains on investments	43,373	61,653
Total revenues	472,066	448,120
Expenses
Net claims and claim expenses incurred	193,081	126,605
Acquisition expenses	83,282	65,592
Operational expenses	47,283	56,235
Corporate expenses	5,286	8,225
Interest expense	10,526	10,538
Total expenses	339,458	267,195
Income before taxes	132,608	180,925
Income tax expense	(334)	(2,744)
Net income	132,274	178,181
Net income attributable to redeemable noncontrolling interests	(34,327)	(44,591)
Net income attributable to RenaissanceRe	97,947	133,590
Dividends on preference shares	(5,595)	(5,595)
Net income available to RenaissanceRe common shareholders	$ 92,352	$ 127,995
Net income available to RenaissanceRe common shareholders per common share – basic (in usd per share)	$ 2.26	$ 2.97
Net income available to RenaissanceRe common shareholders per common share – diluted (in usd per share)	2.25	2.95
Dividends per common share (in usd per share)	$ 0.32	$ 0.31