CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Investments:
Fixed maturities, available for sale, at fair value (Amortized cost 2021: $12,241,782; 2020: $11,566,930 Allowance for expected credit losses 2021: $313; 2020: $323)	$ 12,313,200	$ 12,041,799
Fixed maturities, held to maturity, at amortized cost (Fair value 2021: $445,033 Allowance for expected credit losses 2021: $nil)	446,016	0
Equity securities, at fair value (Cost 2021: $528,864; 2020: $421,744)	655,675	518,445
Mortgage loans, held for investment, at fair value (Allowance for expected credit losses 2021: $nil; 2020: $nil)	594,088	593,290
Other investments, at fair value	947,982	829,156
Equity method investments	146,293	114,209
Short-term investments, at fair value	31,063	161,897
Total investments	15,134,317	14,258,796
Cash and cash equivalents	844,592	902,831
Restricted cash and cash equivalents	473,098	600,401
Accrued interest receivable	64,350	65,020
Insurance and reinsurance premium balances receivable (Allowance for expected credit losses 2021: $7,567; 2020: $8,836)	2,622,676	2,738,342
Reinsurance recoverable on unpaid losses and loss expenses (Allowance for expected credit losses 2021: $29,554; 2020: $23,711)	5,017,611	4,496,641
Reinsurance recoverable on paid losses and loss expenses	642,215	434,201
Deferred acquisition costs	465,593	431,439
Prepaid reinsurance premiums	1,377,358	1,194,455
Receivable for investments sold	4,555	2,150
Goodwill	100,801	100,801
Intangible assets	208,717	219,633
Value of business acquired	0	3,854
Operating lease right-of-use assets	103,295	123,579
Other assets	309,792	305,544
Total assets	27,368,970	25,877,687
Liabilities
Reserve for losses and loss expenses	14,653,094	13,926,766
Unearned premiums	4,090,676	3,685,886
Insurance and reinsurance balances payable	1,324,620	1,092,042
Debt	1,310,975	1,309,695
Payable for investments purchased	31,543	104,777
Operating lease liabilities	119,512	140,263
Other liabilities	427,894	322,564
Total liabilities	21,958,314	20,581,993
Commitments and Contingencies
Shareholders' equity
Preferred shares	550,000	550,000
Common shares (shares issued 2021: 176,580; 2020: 176,580 shares outstanding 2021: 84,774; 2020: 84,353)	2,206	2,206
Additional paid-in capital	2,346,179	2,330,054
Accumulated other comprehensive income	56,536	414,395
Retained earnings	6,204,745	5,763,607
Treasury shares, at cost (2021: 91,806; 2020: 92,227)	(3,749,010)	(3,764,568)
Total shareholders’ equity	5,410,656	5,295,694
Total liabilities and shareholders’ equity	$ 27,368,970	$ 25,877,687