CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	9 Months Ended	3 Months Ended	12 Months Ended
	Dec. 31, 2012 Successor [Member]	Mar. 19, 2012 Predecessor [Member]	Dec. 31, 2011 Predecessor [Member]	Dec. 31, 2010 Predecessor [Member]
Cash flows from operating activities:
Net (loss) income	$ (12,353)	$ (3,433)	$ (10,873)	$ 5,412
Adjustments to reconcile net (loss) income to net cash provided by (used in) operating activities before reorganization activities:
Amortization of bond premium or discount	1,837	523	2,750	2,822
Net realized gain on sale of investments	(2,747)	(176)	(1,206)	(4,796)
Unrealized (gain) loss on trading securities	1,410	(1,049)	2,828	(396)
Equity-based compensation expense	143
Changes in assets and liabilities:
Accrued investment income	616	309	889	856
Other assets	1,588	(597)	1,385	162
Change in cash held in trust	9,230	7,209	3,998	(23,188)
Change in restricted cash	(25,169)
Losses and loss adjustment reserves	(58,485)	(1,109)	(47,917)	(66,390)
Losses payable	(5,445)	1,662	(6,498)	9,784
Unearned premiums	(184)	(47)	(222)	(324)
Accrued ceding commission expense	(330)	137	(259)	121
Accrued interest on notes payable	1,476
Loss contract fair market value reserve	(10,847)
Other liabilities	(3,514)	414	2,033	6,275
Total adjustments	(90,421)	7,276	(42,219)	(75,398)
Net cash provided by (used in) operating activities	(102,774)	3,843	(53,092)	(69,986)
Cash flows from investing activities:
Purchase of investments	(202,847)	(38,506)	(147,993)	(224,791)
Proceeds from sales and maturities of investments	234,096	34,035	206,789	307,924
Net cash provided by (used in) investing activities	31,249	(4,471)	58,796	83,133
Cash flows from financing activities:
Cash from (used in) reorganization activities:		75,000
Notes payable-principal repayments	(2,064)
Notes payable-principal issued	8,336			(12,511)
Net cash provided by (used in) financing activities	6,272	75,000		(12,511)
Increase (decrease) in cash and cash equivalents	(65,253)	74,372	5,704	636
Cash and cash equivalents, beginning of period	82,014	7,642	1,938	1,302
Cash and cash equivalents, end of period	16,761	82,014	7,642	1,938
Cash paid during the year:
Interest	3,699
Supplementary disclosure of non-cash investing and financing activities:
Notes payable issued in lieu of cash interest payments	$ 8,336