Consolidated Balance Sheets - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Assets
Term loans, fair value option (Amortized cost: $991,130 and $1,113,212)	$ 875,560,000	$ 1,061,934,000
Fixed maturities, fair value option (Amortized cost: $611,265 and $432,576)	548,010,000	416,594,000
Short-term investments, fair value option (Cost: $370,976 and $325,542)	370,066,000	329,303,000
Equity securities, fair value option	58,898,000	59,799,000
Other investments, fair value option	34,142,000	30,461,000
Investments, fair value option	1,886,676,000	1,898,091,000
Fixed maturities, available for sale (Amortized cost: $698,897 and $739,456)	690,225,000	745,708,000
Equity securities, fair value through net income	62,444,000	65,338,000
Total investments	2,639,345,000	2,709,137,000
Cash and cash equivalents	107,653,000	102,437,000
Accrued investment income	14,364,000	14,025,000
Premiums receivable	258,178,000	273,657,000
Reinsurance recoverable on unpaid and paid losses and loss adjustment expenses	229,746,000	170,974,000
Prepaid reinsurance premiums	131,919,000	132,577,000
Deferred acquisition costs, net	64,149,000	64,044,000
Receivable for securities sold	31,314,000	16,288,000
Intangible assets	7,650,000	7,650,000
Funds held by reinsurers	41,112,000	42,505,000
Other assets	22,328,000	17,562,000
Total assets	3,547,758,000	3,550,856,000
Liabilities
Reserve for losses and loss adjustment expenses	1,353,049,000	1,263,628,000
Unearned premiums	456,170,000	438,907,000
Losses payable	58,292,000	61,314,000
Reinsurance balances payable	72,776,000	77,066,000
Payable for securities purchased	67,272,000	18,180,000
Payable for securities sold short	29,289,000	66,257,000
Revolving credit agreement borrowings	472,361,000	484,287,000
Senior notes	172,554,000	172,418,000
Amounts due to affiliates	4,542,000	4,467,000
Investment management and performance fees payable	5,511,000	17,762,000
Other liabilities (1)	27,440,000	21,912,000
Total liabilities	2,719,256,000	2,626,198,000
Commitments and contingencies
Contingently redeemable preference shares	52,351,000	52,305,000
Shareholders’ equity
Common shares ($0.01 par; shares authorized: 120 million; shares issued: 22,804,128 and 22,692,300)	227,000	227,000
Additional paid-in capital	898,935,000	898,083,000
Retained earnings (deficit)	(35,909,000)	43,470,000
Accumulated other comprehensive income (loss)	(9,179,000)	5,629,000
Common shares held in treasury, at cost (shares: 2,917,149 and 2,789,405)	(77,923,000)	(75,056,000)
Total shareholders’ equity	776,151,000	872,353,000
Total liabilities, contingently redeemable preference shares and shareholders’ equity	$ 3,547,758,000	$ 3,550,856,000