Liquidating Distributions (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Schedule of liquidating distributions
Distributions during the year	$ 44,554	$ 7,851,746
Less: Liquidating distributions payable at beginning of year	(31,720)
Add: Liquidating distributions payable at end of year	16,555	31,720
Total liquidating distributions	$ 29,389	$ 7,883,466