Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Investments:
Fixed maturities available-for-sale, at fair value (cost: 2019 - $3,499.5; 2018 - $3,529.1)	$ 3,533.2	$ 3,460.4	[1]
Equity securities, at fair value (cost: 2019 - $310.4; 2018 - $310.6)	421.0	354.5	[1]
Other investments (cost: 2019 - $495.5; 2018 - $482.0)	509.4	489.8	[1]
Short-term investments, at fair value (cost: 2019 - $414.0; 2018 - $482.3)	414.0	482.3	[1]
Total investments	4,877.6	4,787.0	[1]
Cash	182.3	139.2	[1]
Accrued investment income	26.7	27.2	[1]
Premiums receivable	728.0	649.9	[1]
Reinsurance recoverables	2,769.5	2,688.3	[1]
Goodwill	177.0	177.0	[1]
Intangible assets, net of accumulated amortization	92.6	93.5	[1]
Current income taxes receivable, net	3.8	8.2	[1]
Deferred acquisition costs, net	163.9	167.3	[1]
Ceded unearned premiums	593.9	457.7	[1]
Operating lease right-of-use assets	112.6
Other assets	438.8	362.9	[1]
Total assets	10,166.7	9,558.2	[1]
Liabilities and Shareholders' Equity
Reserves for losses and loss adjustment expenses	4,735.7	4,654.6	[1]
Unearned premiums	1,404.0	1,300.9	[1]
Accrued underwriting expenses and other liabilities	279.4	261.9	[1]
Ceded reinsurance payable, net	1,052.8	970.5	[1]
Funds held	35.2	37.2	[1]
Senior unsecured fixed rate notes	139.9	139.8	[1]
Other indebtedness	182.3	183.4	[1]
Junior subordinated debentures	257.2	257.0	[1]
Deferred tax liabilities, net	25.4	6.2	[1]
Operating lease liabilities	125.8	0.0	[1]
Total liabilities	8,237.7	7,811.5	[1]
Commitments and contingencies (Note 14)
Shareholders' equity:
Common shares - $1.00 par, 500,000,000 shares authorized; 45,594,095 and 45,276,999 shares issued at June 30, 2019 and December 31, 2018, respectively	45.6	45.3	[1]
Additional paid-in capital	1,369.7	1,372.0	[1]
Treasury shares (11,315,889 shares at June 30, 2019 and December 31, 2018, respectively)	(455.1)	(455.1)	[1]
Retained earnings	959.9	862.6	[1]
Accumulated other comprehensive income (loss), net of taxes	8.9	(78.1)	[1]
Total shareholders' equity	1,929.0	1,746.7	[1]
Total liabilities and shareholders' equity	$ 10,166.7	$ 9,558.2	[1]

[1] Derived from audited consolidated financial statements.