CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash flows from operations:
Net income	$ 419.8	$ 279.5	$ 290.0
Charges (credits) to reconcile net income to net cash (used for) provided from operations:
Net realized and unrealized investment gains	(10.3)	(225.4)	(78.5)
Net gain on sale of consolidated and unconsolidated affiliates	(0.5)	(16.1)	0.0
Amortization and depreciation	64.5	46.4	35.3
Deferred income tax expense (benefit)	2.9	5.6	(22.5)
Undistributed equity in earnings from unconsolidated affiliates, after-tax	0.0	(25.1)	(45.6)
Net loss (income) from discontinued operations	0.3	(78.7)	(260.6)
Net (gain) loss on sale of discontinued operations	(415.1)	(18.2)	1.6
Other operating items:
Net change in loss and loss adjustment expense reserves	25.2	(45.8)	(282.2)
Net change in reinsurance recoverable on paid and unpaid losses	14.2	(20.1)	(83.2)
Net change in unearned insurance premiums	(46.5)	4.1	(57.6)
Net change in ceded unearned insurance premiums	(14.7)	(11.6)	(3.5)
Net change in insurance premiums receivable	(8.1)	17.8	(8.8)
Net change in deferred acquisition costs	0.7	(0.4)	(1.8)
Net change in funds held under insurance contracts	15.3	56.7	17.7
Net change in restricted cash	5.8	17.9	32.4
Net change in other assets and liabilities, net	(226.7)	49.7	(142.4)
Net cash (used for) provided from continuing operations	(130.6)	119.7	69.9
Net cash (used for) provided from discontinued operations	(24.7)	56.0	48.9
Net cash (used for) provided from operations	(155.3)	175.7	118.8
Cash flows from investing activities:
Net change in short-term investments	(70.1)	140.0	(138.0)
Sales of fixed maturity and convertible investments	3,428.7	1,281.7	2,210.8
Maturities, calls and paydowns of fixed maturity and convertible investments	726.9	335.0	452.4
Sales of common equity securities	1,200.8	461.4	609.8
Distributions and redemptions of other long-term investments	28.9	84.7	64.5
Sales of unconsolidated affiliates and consolidated subsidiaries, net of cash sold	2,646.2	24.0	0.0
Proceeds paid to non-controlling common shareholders from the sale of consolidated subsidiaries	(141.6)	0.0	0.0
Purchases of other long-term investments	(39.5)	(78.0)	(114.7)
Proceeds paid to non-controlling common shareholders from the sale of consolidated subsidiaries	(402.0)	17.5	(88.1)
Purchases of common equity securities	(538.3)	(409.9)	(289.7)
Purchases of fixed maturity and convertible investments	(5,802.9)	(1,867.2)	(2,456.1)
Purchases of consolidated and unconsolidated affiliates (net of cash acquired)	(13.4)	(2.6)	(205.0)
Net change in unsettled investment purchases and sales	35.7	(4.6)	(44.7)
Net (acquisitions) dispositions of property and equipment	(4.3)	34.7	(4.5)
Net cash provided from (used for) investing activities — continuing operations	1,055.1	16.7	(3.3)
Net cash provided from investing activities — discontinued operations	221.7	(5.4)	51.2
Net cash provided from investing activities	1,276.8	11.3	47.9
Cash flows from financing activities:
Draw down of debt and revolving line of credit	352.5	171.5	133.6
Repayment of debt and revolving line of credit	(404.6)	(76.1)	(65.2)
Change in capital lease obligation	(1.7)	(5.4)	(5.3)
Cash dividends paid to the Company’s common shareholders	(5.4)	(6.0)	(6.2)
Payments to Acquire Additional Interest in Subsidiaries	0.0	(9.1)	0.0
(Contributions to) distributions from discontinued operations	(3.0)	(7.6)	12.1
Common shares repurchased	(881.3)	(268.6)	(128.2)
OneBeacon Ltd. common shares repurchased and retired	(11.5)	(3.7)	(1.7)
Proceeds from issuances of common shares	3.7	0.0	0.0
Capital contributions from non-controlling interest of consolidated LPs	0.0	0.0	4.9
Redemptions paid to non-controlling interest of consolidated LPs	0.0	0.0	(5.5)
Distributions to non-controlling interest shareholders	(21.1)	(27.2)	(19.8)
Payments to contingent considerations related to purchases of consolidated subsidiaries	(7.8)	0.0	0.0
Capital contributions from BAM members	38.0	29.2	16.2
Net cash used for financing activities — continuing operations	(942.2)	(203.0)	(65.1)
Net cash used for financing activities — discontinued operations	(0.2)	(11.6)	(64.5)
Net cash used for financing activities	(942.4)	(214.6)	(129.6)
Effect of exchange rate changes on cash (excludes $0.0, $(4.5) and $(14.3) related to discontinued operations)	0.0	0.0	0.0
Net change in cash during the period - continuing operations	(17.7)	(66.6)	1.5
Less: cash held for sale at the end of period	1.2	2.3	0.0
Add: cash held for sale at the beginning of period	0.9	1.2	2.3
Cash balance at beginning of year	167.2	232.7	233.5
Cash balance at end of year	$ 149.8	$ 167.2	$ 232.7