Liquidating Distributions - Schedule of Liquidating Distributions (Detail) - Liquidation Basis of Accounting [Member] - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Dec. 31, 2020	Dec. 31, 2020
Distribution Made to Limited Liability Company (LLC) Member [Line Items]
Distributions during the period	$ 5	$ 299,942
Less: Liquidating distributions payable as of beginning of period	(57,235)	(351,876)
Add: Liquidating distributions payable as of end of period	58,696	58,696
Total	$ 1,466	$ 6,762