Financial Guarantee Insurance Contracts - Effect of Reinsurance on Premiums Written and Earned (Detail) - Successor [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Direct Premiums Written	$ (4,041)	$ (11,192)	$ (28,821)	$ (10,130)
Assumed Reinsurance Premiums Written	0	0	0	0
Ceded Reinsurance Premiums Written	(854)	(1,142)	(6,899)	(777)
Premiums written, net of reinsurance	3,187	10,050	21,922	9,353
Direct Premiums Earned	44,974	65,156	101,963	136,806
Assumed Reinsurance Premiums Earned	21	22	43	43
Ceded Reinsurance Premiums Earned	3,593	4,299	7,804	10,252
Reinsurance on premiums earned, Net	$ 41,402	$ 60,879	$ 94,202	$ 126,597