CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Investments
Debt instruments, trading, at fair value	$ 7,180	$ 22,473
Equity securities, trading, at fair value	1,203,672	844,001
Other investments, at fair value	152,132	156,063
Total investments	1,362,984	1,022,537
Cash and cash equivalents	27,285	39,858
Restricted cash and cash equivalents	1,503,813	1,202,651
Financial contracts receivable, at fair value	12,893	76,381
Reinsurance balances receivable	301,762	219,126
Loss and loss adjustment expenses recoverable	29,459	2,704
Deferred acquisition costs, net	62,350	61,022
Unearned premiums ceded	25,120	2,377
Notes receivable, net	28,497	33,734
Other assets	3,230	4,303
Total assets	3,357,393	2,664,693
Liabilities
Securities sold, not yet purchased, at fair value	912,797	859,902
Financial contracts payable, at fair value	22,222	2,237
Due to prime brokers and other financial institutions	672,700	319,830
Loss and loss adjustment expense reserves	464,380	306,641
Unearned premium reserves	255,818	222,527
Reinsurance balances payable	144,058	41,415
Funds withheld	23,579	5,927
Other liabilities	10,413	14,527
Total liabilities	2,505,967	1,773,006
Equity
Preferred share capital (par value $0.10; authorized, 50,000,000; none issued)	0	0
Ordinary share capital (Class A: par value $0.10; authorized, 100,000,000; issued and outstanding, 31,104,830 (2016: 31,111,432): Class B: par value $0.10; authorized, 25,000,000; issued and outstanding, 6,254,715 (2016: 6,254,895))	3,736	3,737
Additional paid-in capital	503,316	500,337
Retained earnings	324,272	370,168
Shareholders’ equity attributable to shareholders	831,324	874,242
Non-controlling interest in related party joint venture	12,933	11,561
Total equity	844,257	885,803
Total liabilities, redeemable non-controlling interest and equity	$ 3,357,393	$ 2,664,693

Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock.

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- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.