Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Cash flows provided by operating activities
Net income	$ 538,798	$ 416,373
Adjustments to reconcile net income to net cash provided by operating activities
Amortization, accretion and depreciation	18,343	3,837
Equity in undistributed losses (earnings) of other ventures	10,173	(11,303)
Net realized and unrealized (gains) losses on investments	(191,295)	26,101
Net unrealized losses included in net investment income	17,608	10,690
Net unrealized losses included in other income	0	426
Change in:
Premiums receivable	(403,322)	(191,470)
Prepaid reinsurance premiums	(280,750)	(156,184)
Reinsurance recoverable	(106,243)	(70,994)
Deferred acquisition costs	(152,461)	(103,460)
Reserve for claims and claim expenses	94,054	(14,293)
Unearned premiums	545,034	296,950
Reinsurance balances payable	250,686	74,124
Other	29,378	(118,650)
Net cash provided by operating activities	370,003	162,147
Cash flows provided by (used in) investing activities
Proceeds from sales and maturities of fixed maturity investments trading	6,509,019	6,956,729
Purchases of fixed maturity investments trading	(6,744,838)	(7,194,793)
Proceeds from sales and maturities of fixed maturity investments available for sale	5,931	6,741
Net sales (purchases) of equity investments trading	183,112	(153,452)
Net sales of short term investments	128,869	896,027
Net (purchases) sales of other investments	(56,765)	7,033
Net purchases of investments in other ventures	0	(45)
Net sales of other assets	400	4,500
Net purchase of Platinum	0	(678,152)
Net cash provided by (used in) investing activities	25,728	(155,412)
Cash flows (used in) provided by financing activities
Dividends paid – RenaissanceRe common shares	(38,886)	(40,883)
Dividends paid – preference shares	(16,786)	(16,786)
RenaissanceRe common share repurchases	(309,434)	(197,350)
Issuance of debt, net of expenses	0	445,589
Net third party redeemable noncontrolling interest share transactions	(45,496)	(187,339)
Net cash (used in) provided by financing activities	(410,602)	3,231
Effect of exchange rate changes on foreign currency cash	1,316	(11,004)
Net decrease in cash and cash equivalents	(13,555)	(1,038)
Cash and cash equivalents, beginning of period	506,885	525,584
Cash and cash equivalents, end of period	$ 493,330	$ 524,546