CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash flows from operations:
Net income	$ 290.6	$ 309.4	$ 193.4
Charges (credits) to reconcile net income to net cash (used for) provided from operations:
Net realized and unrealized investment gains	(283.9)	(161.7)	(118.2)
Net gain on sale of consolidated and unconsolidated affiliates	(0.7)	(21.3)	0
Amortization and depreciation	69.7	60.6	50.8
Excess of fair value of acquired net assets over cost	0	(15.2)	(34.2)
Deferred income tax (benefit) expense	(2.7)	39.7	(16.8)
Undistributed equity in earnings from unconsolidated affiliates, after-tax	(45.6)	(36.6)	(29.9)
Net loss from discontinued operations	1.8	42.1	24.0
Net loss (gain) on sale of other discontinued operations	1.6	(46.6)	91.0
Other operating items:
Net change in loss and loss adjustment expense reserves	189.6	(164.6)	(172.2)
Net change in reinsurance recoverable on paid and unpaid losses	(93.0)	25.0	42.4
Net change in unearned insurance and reinsurance premiums	(119.6)	12.5	(63.1)
Net change in ceded reinsurance premiums payable	46.1	(28.1)	3.8
Net change in ceded unearned insurance and reinsurance premiums	(21.2)	1.4	0
Net change in insurance and reinsurance premiums receivable	(88.0)	12.7	(79.2)
Net change in variable annuity benefit guarantee liabilities	(53.5)	(388.7)	(327.1)
Net change in variable annuity benefit derivative instruments	12.7	29.1	192.1
Net change in deferred acquisition costs	(12.6)	17.1	(5.7)
Net change in funds held by ceding companies	(35.5)	14.4	(17.7)
Net change in funds held under reinsurance treaties	22.4	98.8	10.6
Net change in restricted cash	32.4	193.7	203.7
Net change in other assets and liabilities, net	57.1	2.6	(103.5)
Net cash provided from (used for) continuing operations	206.9	(28.7)	(29.6)
Net cash used for discontinued operations	(88.1)	(72.3)	(196.2)
Net cash provided from (used for) operations	118.8	(101.0)	(225.8)
Cash flows from investing activities:
Net change in short-term investments	(351.5)	34.8	145.3
Sales of fixed maturity and convertible investments	4,845.1	3,879.8	6,040.0
Maturities, calls and paydowns of fixed maturity and convertible investments	629.2	465.8	678.4
Sales of common equity securities	660.9	521.1	192.4
Distributions and redemptions of other long-term investments	102.9	58.1	86.7
Sales of unconsolidated affiliates, net of cash sold and held in escrow	12.8	32.4	24.8
Contributions to other long-term investments	(137.0)	(36.3)	(96.7)
Funding of operational cash flows for discontinued operations	(88.1)	(72.3)	(196.2)
Purchases of common equity securities	(328.8)	(432.2)	(365.2)
Purchases of fixed maturity and convertible investments	(5,112.8)	(4,132.0)	(5,810.1)
Purchases of consolidated and unconsolidated affiliates (net of cash acquired)	(199.2)	15.9	(41.3)
Net change in unsettled investment purchases and sales	(62.1)	7.5	(22.4)
Net acquisitions of property and equipment	(11.6)	(13.1)	(2.3)
Net cash (used for) provided from investing activities — continuing operations	(40.2)	329.5	633.4
Net cash provided from investing activities — discontinued operations	88.1	72.3	196.2
Net cash provided from investing activities	47.9	401.8	829.6
Cash flows from financing activities:
Draw down of revolving line of credit	0	200.0	150.0
Repayment of revolving line of credit	(66.5)	(275.0)	(75.0)
Repurchase of debt	65.0	0	(275.9)
Issuance of debt, net of debt issuance costs	68.6	0	271.9
Change in capital lease obligation	(5.3)	(5.7)	(4.9)
Cash dividends paid to the Company’s common shareholders	(6.2)	(6.2)	(6.6)
Cash dividends paid to OneBeacon Ltd.’s non-controlling common shareholders	(19.8)	(19.9)	(19.8)
Cash dividends paid on SIG Preference Shares	(18.8)	(18.8)	(18.8)
Common shares repurchased	(128.2)	(79.8)	(669.1)
OneBeacon Ltd. common shares repurchased and retired	(1.7)	0	0
Capital contributions from non-controlling interest of consolidated LPs	4.9	1.6	0
Redemptions paid to non-controlling interest of consolidated LPs	(5.5)	(0.7)	0
Distribution to non-controlling interest shareholders of Tranzact	(25.8)	0	0
Purchase of interest rate cap	0	(9.9)	0
Collateral provided by interest rate cap counterparties	(6.5)	10.8	0
Capital contributions from BAM members	16.2	17.1	0
Net cash used for financing activities	(129.6)	(186.5)	(648.2)
Effect of exchange rate changes on cash	(14.3)	(0.2)	3.1
Net change in cash during the period	22.8	114.1	(41.3)
Cash reclassified to assets held for sale (net of cash sold of $0, $0, and $3.5)	0	0	2.0
Cash balance at beginning of year (excludes restricted cash balances of $56.1, $249.8 and $453.5)	326.7	212.6	251.9
Cash balance at end of year (excludes restricted cash balances of $23.7, $56.1, and $249.8)	$ 349.5	$ 326.7	$ 212.6