CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities
Net income (loss)	$ 9,212	$ (15,413)	$ 30,073	$ (52,049)
Less: net loss from discontinued operations	0	19,389	0	22,123
Adjustments to reconcile net income (loss) to net cash flows from operating activities:
Depreciation, amortization and share-based compensation			4,004	4,388
Net realized gains on investment	(8,875)	(24,086)	(19,913)	(12,985)
Total other-than-temporary impairment losses	0	0	1,506	0
Foreign exchange and other gains			(5,902)	(6,186)
Changes in assets – (increase) decrease:
Reinsurance balances receivable, net			(10,196)	(1,191)
Reinsurance recoverable on unpaid losses			4,294	(242)
Accrued investment income			6,413	5,526
Deferred commission and other acquisition expenses			13,662	136,686
Funds withheld receivable			(13,416)	(81,649)
Other assets			(9,316)	(7,910)
Changes in liabilities – increase (decrease):
Reserve for loss and loss adjustment expenses			(361,082)	(833)
Unearned premiums			(37,634)	(459,179)
Accrued expenses and other liabilities			(21,645)	(48,251)
Net cash used in continuing operations			(419,152)	(501,752)
Net cash used in discontinued operations			0	(1,905)
Net cash used in operating activities			(419,152)	(503,657)
Cash flows from investing activities:
Purchases of fixed maturities			(245,331)	(395,640)
Purchases of other investments			(4,475)	(5,290)
Proceeds from sales of fixed maturities	181,030	625,254	405,501	709,615
Proceeds from maturities, paydowns and calls of fixed maturities			292,780	324,480
Proceeds from sale and redemption of other investments			92	580
Other, net			(598)	3,276
Net cash provided by investing activities for continuing operations			447,969	637,021
Net cash used in investing activities for discontinued operations			0	(6,113)
Net cash provided by investing activities			447,969	630,908
Cash flows from financing activities:
Repurchase of common shares			(1)	(13)
Net cash used in financing activities			(1)	(13)
Effect of exchange rate changes on foreign currency cash, restricted cash and equivalents			1,359	(177)
Net increase in cash, restricted cash and cash equivalents			30,175	127,061
Cash, restricted cash and cash equivalents, beginning of period			107,278	337,102
Cash, restricted cash and cash equivalents, end of period	137,453	464,163	137,453	464,163
Reconciliation of cash and restricted cash reported within Condensed Consolidated Balance Sheets:
Cash and cash equivalents, end of period	56,583	82,465	56,583	82,465
Restricted cash and cash equivalents	80,870	381,698	80,870	381,698
Total cash, restricted cash and cash equivalents, end of period	$ 137,453	$ 464,163	137,453	464,163
AmTrust Quota Shares Reinsurance Agreement, Partial Termination Amendment
Non-cash investing activities
Investments transferred out			0	280,670
Funds Withheld Arrangement
Non-cash investing activities
Investments transferred out			0	571,396
Discontinued Operations
Non-cash investing activities
Investments transferred out			$ 0	$ 65,400