Consolidated Statements of Cash Flows - Successor [Member] - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash flows from operating activities:
Net income (loss) attributable to common shareholders	$ 497,406	$ (51,963)
Net (loss) gain	357	221
Net income (loss)	497,049	(52,184)
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation and amortization	1,489	1,481
Amortization of bond premium and discount	(64,478)	(64,392)
Reorganization items	0	209
Share-based compensation	1,274	2,387
Deferred income taxes	(124)	115
Current income taxes	(4,031)	(2,226)
Unearned premiums, net	(134,487)	(174,117)
Losses and loss expenses, net	299,879	(129,931)
Ceded premiums payable	(2,434)	(6,222)
Investment income due and accrued	(264)	3,145
Premium receivables	63,683	96,659
Accrued interest payable	34,867	45,158
Amortization of insurance intangible assets	75,520	67,970
Net mark-to-market (gains) losses	(6,968)	(4,671)
Net realized investment gains	(48,748)	(19,356)
Other-than-temporary impairment charges	4,139	19,146
Losses on extinguishment of debt	1,339	0
Variable interest entity activities	(59,565)	43,690
Other, net	(20,043)	85,546
Net cash provided by operating activities	38,339	172,269
Cash flows from investing activities:
Proceeds from sales of bonds	705,104	993,721
Proceeds from matured bonds	469,630	496,099
Purchases of bonds	(1,385,652)	(1,323,098)
Proceeds from sales of other invested assets	96,691	40,173
Purchases of other invested assets	(81,696)	(33,528)
Change in short-term investments	162,995	(73,068)
Loans, net	40	(170)
Change in swap collateral receivable	19,710	(90,616)
Other, net	(1,477)	5,308
Net cash provided by (used in) investing activities	(14,655)	14,821
Cash flows from financing activities:
Proceeds from warrant exercise	2	1
Payments for investment agreement draws	(49,872)	(190,000)
Payments for extinguishment of long-term debt	(13,752)	0
Net cash (used in) financing activities	(63,622)	(189,999)
Net cash flow	(39,938)	(2,909)
Cash and cash equivalents at beginning of period	73,903	77,370
Cash and cash equivalents end of period	33,965	74,461
Supplemental disclosure of cash flow information:
Income taxes	9,685	3,167
Interest on investment agreements	159	366
Cash payments related to reorganization items:
Professional fees paid for services rendered in connection with the Chapter 11 proceeding	$ 0	$ 267