Liquidating Distributions - Schedule of Liquidating Distributions (Detail) - Liquidation Basis of Accounting [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Distribution Made to Limited Liability Company (LLC) Member [Line Items]
Distributions during the period	$ 48		$ 146
Less: Liquidating distributions payable at beginning of period	(7,028)		(6,213)
Add: Liquidating distributions payable at end of period	114,038		114,038
Total	$ 107,058	$ 117,280	$ 107,971	$ 124,420