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Segment Information - Schedule of Gross Premiums Written, Net Premiums Earned and Net Change in Fair Value of Credit Derivatives (Detail) - Successor [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Segment Reporting Information [Line Items]
Gross Premiums Written	$ (8,710)	$ (13,700)	$ (18,840)	$ (64,952)
Net premiums earned	71,535	64,831	198,132	212,391
Net Change In Fair Value Of Credit Derivatives	36,952	7,416	44,746	13,579
Reportable Geographical Components [Member] | United States [Member]
Segment Reporting Information [Line Items]
Gross Premiums Written	(2,386)	(15,355)	(5,172)	(44,266)
Net premiums earned	60,402	44,882	163,094	141,472
Net Change In Fair Value Of Credit Derivatives	30,604	262	39,286	6,283
Reportable Geographical Components [Member] | United Kingdom [Member]
Segment Reporting Information [Line Items]
Gross Premiums Written	260	1,482	7,295	(1,681)
Net premiums earned	8,081	14,309	23,659	55,752
Net Change In Fair Value Of Credit Derivatives	0	0	0	0
Reportable Geographical Components [Member] | Other International [Member]
Segment Reporting Information [Line Items]
Gross Premiums Written	(6,584)	173	(20,963)	(19,005)
Net premiums earned	3,052	5,640	11,379	15,167
Net Change In Fair Value Of Credit Derivatives	$ 6,348	$ 7,154	$ 5,460	$ 7,296

X

- Definition

Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.

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Amount, after premiums ceded to other entities and premiums assumed by the entity, of financial guarantee premiums earned.

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Amount of direct and assumed premiums written.

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