Unaudited Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
ASSETS:
Fixed maturity investments trading, at fair value (amortized cost: 2014: $6,062,758; 2013: $6,065,350)	$ 6,157,084	$ 6,100,798
Equity securities trading, at fair value (cost: 2014: $885,861; 2013: $647,301)	938,117	699,846
Other invested assets	932,639	911,392
Total investments	8,027,840	7,712,036
Cash and cash equivalents	635,138	531,936
Restricted cash	127,755	149,393
Insurance balances receivable	976,441	664,731
Funds held	414,445	632,430
Prepaid reinsurance	390,414	340,992
Reinsurance recoverable	1,301,742	1,234,504
Accrued investment income	30,968	32,236
Net deferred acquisition costs	163,259	126,661
Goodwill	277,761	268,376
Intangible assets	47,564	48,831
Balances receivable on sale of investments	164,713	76,544
Net deferred tax assets	35,867	37,469
Other assets	75,740	89,691
Total assets	12,669,647	11,945,830
LIABILITIES:
Reserve for losses and loss expenses	5,935,678	5,766,529
Unearned premiums	1,703,684	1,396,256
Reinsurance balances payable	224,182	173,023
Balances due on purchases of investments	180,378	104,740
Senior notes	798,648	798,499
Dividends payable	21,870	16,732
Accounts payable and accrued liabilities	122,445	170,225
Total liabilities	8,986,885	8,426,004
Commitments and contingencies
SHAREHOLDERS’ EQUITY:
Common shares: 2014: par value CHF 4.10 per share and 2013: par value CHF 4.10 per share (2014: 99,515,760; 2013: 103,477,452 shares issued and 2014: 96,929,091; 2013: 100,253,646 shares outstanding)	402,907	418,988
Treasury shares, at cost (2014: 2,586,669; 2013: 3,223,806)	(65,258)	(79,992)
Retained earnings	3,345,113	3,180,830
Total shareholders’ equity	3,682,762	3,519,826
Total liabilities and shareholders’ equity	$ 12,669,647	$ 11,945,830