Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019	[1]
Investments:
Fixed maturities available-for-sale, at fair value (cost: 2020 - $3,634.4, 2019 - $3,605.0; allowance for expected credit losses: 2020 - $31.6)	$ 3,523.5	$ 3,633.5
Equity securities, at fair value (cost: 2020 - $170.6; 2019 - $122.8)	132.9	124.4
Other investments (cost: 2020 - $422.5; 2019 - $482.5)	422.4	496.5
Short-term investments, at fair value (cost: 2020 - $732.7; 2019 - $844.8)	732.6	845.0
Total investments	4,811.4	5,099.4
Cash	158.7	137.8
Accrued investment income	23.2	25.7
Premiums receivable	739.1	688.2
Reinsurance recoverables	2,820.9	3,104.6
Goodwill	161.4	161.4
Intangible assets, net of accumulated amortization	91.5	91.8
Deferred tax asset, net	44.5	6.1
Deferred acquisition costs, net	158.0	160.2
Ceded unearned premiums	652.9	545.0
Operating lease right-of-use assets	89.1	91.8
Other assets	435.4	387.1
Assets held for sale	15.2	15.4
Total assets	10,201.3	10,514.5
Liabilities and Shareholders' Equity
Reserves for losses and loss adjustment expenses	5,067.6	5,157.6
Unearned premiums	1,460.0	1,410.9
Accrued underwriting expenses and other liabilities	185.3	226.0
Ceded reinsurance payable, net	1,094.8	1,203.1
Funds held	60.0	50.6
Senior unsecured fixed rate notes	140.0	140.0
Other indebtedness	180.0	181.3
Junior subordinated debentures	257.5	257.4
Current income taxes payable, net	17.7	0.8
Operating lease liabilities	101.6	105.7
Total liabilities	8,564.5	8,733.4
Commitments and contingencies (Note 14)
Shareholders' equity:
Common shares - $1.00 par, 500,000,000 shares authorized; 45,867,812 and 45,698,470 shares issued at March 31, 2020 and December 31, 2019, respectively	45.9	45.7
Additional paid-in capital	1,374.2	1,376.6
Treasury shares (11,315,889 shares at March 31, 2020 and December 31, 2019, respectively)	(455.1)	(455.1)
Retained earnings	773.7	811.1
Accumulated other comprehensive (loss) income, net of taxes	(101.9)	2.8
Total shareholders' equity	1,636.8	1,781.1
Total liabilities and shareholders' equity	$ 10,201.3	$ 10,514.5

[1] Derived from audited consolidated financial statements.