Liquidating Distributions - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
Distribution Made to Limited Partner [Line Items]
Cash distributions payable	$ 2,400
Liquidation Basis of Accounting [Member]
Distribution Made to Limited Partner [Line Items]
(Net reversal of liquidating distribution) liquidating distributions	$ 417,909	$ 0	$ (6,947)