Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operations:
Net (loss) income	$ (128.5)	$ 112.3
Adjustments to reconcile net income to net cash provided from operations:
Net realized and unrealized investment losses (gains)	7.7	(114.1)
Amortization of premium on fixed maturity investments	2.0	(3.2)
Amortization of intangible assets	7.9	7.9
Depreciation and other amortization	3.3	4.3
Share-based compensation	4.2	4.5
Revaluation of contingent consideration	0.3	0.0
Other operating items:
Net change in loss and loss adjustment expense reserves	184.0	46.6
Net change in reinsurance recoverable on paid and unpaid losses	(64.4)	(36.0)
Net change in funds held by ceding companies	38.4	(54.7)
Net change in unearned insurance and reinsurance premiums	162.0	252.6
Net change in ceded reinsurance payable	61.8	50.4
Net change in ceded unearned insurance and reinsurance premiums	(37.3)	(35.8)
Net change in insurance and reinsurance premiums receivable	(138.9)	(252.0)
Net change in deferred acquisition costs	(11.0)	(20.2)
Net change in funds held under reinsurance treaties	(23.0)	18.4
Net change in current and deferred income taxes, net	(1.5)	4.2
Net change in other assets and liabilities, net	5.4	29.8
Net cash provided from operations	72.4	15.0
Cash flows from investing activities:
Net change in short-term investments	61.7
Net change in short-term investments		(160.2)
Sales of fixed maturities and convertible fixed maturity investments	309.9	241.9
Maturities, calls, and paydowns of fixed maturity and convertible fixed maturity investments	132.8	154.7
Sales of common equity securities	663.7	152.2
Distributions, redemptions, and maturities of other long-term investments	19.6	33.6
Return of principal on loan participations	0.1	0.0
Contributions to other long-term investments	(26.0)	(41.3)
Purchases of common equity securities	(473.4)	(125.8)
Purchases of fixed maturities and convertible fixed maturity investments	(673.1)	(270.9)
Purchases of loan participation	(7.4)	0.0
Net change in unsettled investment purchases and sales	(19.7)	2.4
Other, net	(1.6)	0.6
Net cash (used for) investing activities	(13.4)	(12.8)
Cash flows from financing activities:
Payment of contingent consideration	(5.5)	0.0
Change in collateral held on Interest Rate Cap	0.0	(0.1)
Net cash (used for) financing activities	(5.5)	(0.1)
Effect of exchange rate changes on cash	0.8	(3.8)
Net increase (decrease) in cash during period	54.3	(1.7)
Cash, restricted cash, and cash held for sale balance at beginning of period	150.6	132.2
Cash, restricted cash, and cash held for sale balance at end of period	$ 204.9	$ 130.5