CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Investments:
Fixed maturities, available for sale, at fair value (Amortized cost 2020: $11,715,885; 2019: $12,263,240 Allowance for expected credit losses 2020: $6,257)	$ 12,046,415	$ 12,468,205
Equity securities, at fair value (Cost 2020: $340,510; 2019: $398,956)	378,860	474,207
Mortgage loans, held for investment, at fair value (Allowance for expected credit losses 2020: $nil)	524,757	432,748
Other investments, at fair value	768,635	770,923
Equity method investments	101,346	117,821
Short-term investments, at fair value	34,337	38,471
Total investments	13,854,350	14,302,375
Cash and cash equivalents	1,086,829	1,241,109
Restricted cash and cash equivalents	562,004	335,348
Accrued interest receivable	68,880	78,085
Insurance and reinsurance premium balances receivable (Allowance for expected credit losses 2020: $10,041)	3,527,147	3,071,390
Reinsurance recoverable on unpaid losses and loss expenses (Allowance for expected credit losses 2020: $20,987)	4,160,521	3,877,756
Reinsurance recoverable on paid losses and loss expenses	395,990	327,795
Deferred acquisition costs	583,484	492,119
Prepaid reinsurance premiums	1,352,090	1,101,889
Receivable for investments sold	2,985	35,659
Goodwill	102,003	102,003
Intangible assets	225,092	230,550
Value of business acquired	5,909	8,992
Operating lease right-of-use assets	136,815	111,092
Other assets	295,074	287,892
Total assets	26,359,173	25,604,054
Liabilities
Reserve for losses and loss expenses	13,179,166	12,752,081
Unearned premiums	4,418,728	3,626,246
Insurance and reinsurance balances payable	1,365,799	1,349,082
Debt	1,309,076	1,808,157
Payable for investments purchased	350,347	32,985
Operating lease liabilities	141,621	115,584
Other liabilities	296,616	375,911
Total liabilities	21,061,353	20,060,046
Shareholders’ equity
Preferred shares	550,000	775,000
Common shares (shares issued 2020: 176,580; 2019: 176,580 shares outstanding 2020: 84,306; 2019: 83,959)	2,206	2,206
Additional paid-in capital	2,317,354	2,317,212
Accumulated other comprehensive income	281,599	171,710
Retained earnings	5,913,029	6,056,686
Treasury shares, at cost (2020: 92,274; 2019: 92,621 shares)	(3,766,368)	(3,778,806)
Total shareholders’ equity	5,297,820	5,544,008
Total liabilities and shareholders’ equity	$ 26,359,173	$ 25,604,054