Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Investments:
Fixed maturities available-for-sale, at fair value (cost: 2019 - $3,605.0; 2018 - $3,529.1)	$ 3,633.5	$ 3,460.4
Equity securities, at fair value (cost: 2019 - $122.8; 2018 - $310.6)	124.4	354.5
Other investments (cost: 2019 - $482.5; 2018 - $482.0)	496.5	489.8
Short-term investments, at fair value (cost: 2019 - $844.8; 2018 - $482.3)	845.0	482.3
Total investments	5,099.4	4,787.0
Cash	137.8	139.2
Accrued investment income	25.7	27.2
Premiums receivable	688.2	649.9
Reinsurance recoverables	3,104.6	2,688.3
Goodwill	161.4	177.0
Intangible assets, net of accumulated amortization	91.8	93.5
Current income taxes receivable, net	0.0	8.2
Deferred tax asset, net	6.1	0.0
Deferred acquisition costs, net	160.2	167.3
Ceded unearned premiums	545.0	457.7
Operating leases right-of-use assets	91.8
Other assets	387.1	362.9
Assets held for sale	15.4	0.0
Total assets	10,514.5	9,558.2
Liabilities and Shareholders' Equity
Reserves for losses and loss adjustment expenses	5,157.6	4,654.6
Unearned premiums	1,410.9	1,300.9
Accrued underwriting expenses and other liabilities	226.0	261.9
Ceded reinsurance payable, net	1,203.1	970.5
Funds held	50.6	37.2
Senior unsecured fixed rate notes	140.0	139.8
Other indebtedness	181.3	183.4
Junior subordinated debentures	257.4	257.0
Current income taxes payable, net	0.8	0.0
Deferred tax liabilities, net	0.0	6.2
Operating lease liabilities	105.7
Total liabilities	8,733.4	7,811.5
Commitments and contingencies (Note 17)
Shareholders' equity:
Common shares - $1.00 par, 500,000,000 shares authorized; 45,698,470 and 45,276,999 shares issued at December 31, 2019 and December 31, 2018, respectively	45.7	45.3
Additional paid-in capital	1,376.6	1,372.0
Treasury shares (11,315,889 shares at December 31, 2019 and December 31, 2018, respectively)	(455.1)	(455.1)
Retained earnings	811.1	862.6
Accumulated other comprehensive income (loss), net of taxes	2.8	(78.1)
Total shareholders' equity	1,781.1	1,746.7
Total liabilities and shareholders' equity	$ 10,514.5	$ 9,558.2