CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Assets
Fixed maturities, available for sale, at fair value (Amortized cost 2017: $11,420,810; 2016: $11,523,316)	$ 11,424,295	$ 11,397,114
Equity securities, available for sale, at fair value (Cost 2017: $651,656; 2016: $597,336)	738,489	638,744
Mortgage loans, held for investment, at amortized cost and fair value	349,916	349,969
Other investments, at fair value	813,617	830,219
Equity method investments	109,258	116,000
Short-term investments, at amortized cost and fair value	10,146	127,461
Total investments	13,445,721	13,459,507
Cash and cash equivalents	728,519	1,039,494
Restricted cash and cash equivalents	286,751	202,013
Accrued interest receivable	72,626	74,971
Insurance and reinsurance premium balances receivable	3,050,222	2,313,512
Reinsurance recoverable on unpaid and paid losses	2,184,934	2,334,922
Deferred acquisition costs	591,397	438,636
Prepaid reinsurance premiums	733,836	556,344
Receivable for investments sold	18,754	14,123
Goodwill and intangible assets	86,220	85,049
Other assets	300,658	295,120
Total assets	21,499,638	20,813,691
Liabilities
Reserve for losses and loss expenses	9,878,662	9,697,827
Unearned premiums	3,704,003	2,969,498
Insurance and reinsurance balances payable	677,204	493,183
Senior notes	993,511	992,950
Payable for investments purchased	95,865	62,550
Other liabilities	257,698	325,313
Total liabilities	15,606,943	14,541,321
Shareholders’ equity
Preferred shares	775,000	1,126,074
Common shares (2017: 176,580; 2016: 176,580 shares issued and 2017: 83,203; 2016: 86,441 shares outstanding)	2,206	2,206
Additional paid-in capital	2,283,523	2,299,857
Accumulated other comprehensive income (loss)	84,306	(121,841)
Retained earnings	6,551,801	6,527,627
Treasury shares, at cost (2017: 93,377; 2016: 90,139 shares)	(3,804,141)	(3,561,553)
Total shareholders’ equity	5,892,695	6,272,370
Total liabilities and shareholders’ equity	$ 21,499,638	$ 20,813,691