Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Assets
Fixed maturity investments trading, at fair value – amortized cost $7,499,997 at June 30, 2018 (December 31, 2017 – $7,434,870)	$ 7,420,778	$ 7,426,555
Short term investments, at fair value	2,031,943	991,863
Equity investments trading, at fair value	432,804	388,254
Other investments, at fair value	713,200	594,793
Investments in other ventures, under equity method	111,935	101,974
Total investments	10,710,660	9,503,439
Cash and cash equivalents	548,472	1,361,592
Premiums receivable	1,959,647	1,304,622
Prepaid reinsurance premiums	925,501	533,546
Reinsurance recoverable	1,454,991	1,586,630
Accrued investment income	44,810	42,235
Deferred acquisition costs	511,155	426,551
Receivable for investments sold	505,907	103,145
Other assets	122,048	121,226
Goodwill and other intangible assets	240,187	243,145
Total assets	17,023,378	15,226,131
Liabilities
Reserve for claims and claim expenses	4,702,345	5,080,408
Unearned premiums	2,267,450	1,477,609
Debt	990,371	989,623
Reinsurance balances payable	2,085,034	989,090
Payable for investments purchased	490,589	208,749
Other liabilities	134,100	792,771
Total liabilities	10,669,889	9,538,250
Commitments and Contingencies
Redeemable noncontrolling interests	1,493,428	1,296,506
Shareholders’ Equity
Preference shares: $1.00 par value – 16,010,000 shares issued and outstanding at June 30, 2018 (December 31, 2017 – 16,000,000)	650,000	400,000
Common shares: $1.00 par value – 40,263,226 shares issued and outstanding at June 30, 2018 (December 31, 2017 – 40,023,789)	40,263	40,024
Additional paid-in capital	35,094	37,355
Accumulated other comprehensive (loss) income	(1,101)	224
Retained earnings	4,135,805	3,913,772
Total shareholders’ equity attributable to RenaissanceRe	4,860,061	4,391,375
Total liabilities, noncontrolling interests and shareholders’ equity	$ 17,023,378	$ 15,226,131