Unaudited Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
ASSETS:
Fixed maturity investments trading, at fair value (amortized cost: 2017: $6,535.6; 2016: $6,874.4)	$ 6,473.1	$ 6,737.7
Equity securities trading, at fair value (cost: 2017: $237.7; 2016: $235.0)	255.2	243.9
Other invested assets	966.6	960.7
Total investments	7,694.9	7,942.3
Cash and cash equivalents	1,284.9	720.9
Restricted cash	60.6	76.5
Insurance balances receivable	862.2	784.0
Funds held	297.1	466.8
Prepaid reinsurance	478.7	486.4
Reinsurance recoverable	1,725.6	1,625.0
Reinsurance recoverable on paid losses	119.9	104.4
Accrued investment income	32.2	36.0
Net deferred acquisition costs	148.9	121.1
Goodwill	388.6	389.7
Intangible assets	104.2	104.7
Balances receivable on sale of investments	23.9	114.7
Net deferred tax assets	34.8	38.7
Other assets	171.0	167.8
Total assets	13,427.5	13,179.0
LIABILITIES:
Reserve for losses and loss expenses	6,762.7	6,639.2
Unearned premiums	1,813.2	1,688.1
Reinsurance balances payable	202.9	223.3
Balances due on purchases of investments	58.2	79.7
Senior notes, net
Principal amount	800.0	800.0
Less unamortized discount and debt issuance costs	5.6	5.8
Senior notes	794.4	794.2
Other long-term debt	22.6	22.0
Accounts payable and accrued liabilities	135.2	180.7
Total liabilities	9,789.2	9,627.2
SHAREHOLDERS’ EQUITY:
Common shares: 2017 and 2016: par value CHF 4.10 per share (2017: 93,586,418; 2016: 93,586,418 shares issued and 2017: 87,483,715; 2016: 87,098,120 shares outstanding)	378.8	378.8
Treasury shares, at cost (2017: 6,102,703; 2016: 6,488,298)	(223.6)	(233.8)
Accumulated other comprehensive loss	(5.9)	(11.6)
Retained earnings	3,489.0	3,418.4
Total shareholders’ equity	3,638.3	3,551.8
Total liabilities and shareholders’ equity	$ 13,427.5	$ 13,179.0