Fair Value Measurements (Tables)

3 Months Ended

Jun. 30, 2014

Fair Value Disclosures [Abstract]

Assets and Liabilities Measured at Fair Value on Recurring Basis

The following table presents information about the GUC Trust’s assets and liabilities measured at fair value on a recurring basis at June 30, 2014 and March 31, 2014, and the valuation techniques used by the GUC Trust to determine those fair values.

	June 30, 2014
(in thousands)	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents:
Money market funds	$	10,780	$	—	$	—	$	10,780
Marketable Securities:
Municipal commercial paper and demand notes		—		13,631		—		13,631
Corporate commercial paper		—		25,675		—		25,675
Holdings of New GM Securities:
New GM Common Stock		553,542		—		—		553,542
New GM Warrants		626,173		—		—		626,173
Total Assets	$	1,190,495	$	39,306	$	—	$	1,229,801
Liabilities:
Liquidating distributions payable	$	48,978	$	—	$	—	$	48,978

	March 31, 2014
(in thousands)	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents:
Money market funds	$	8,953	$	—	$	—	$	8,953
Marketable Securities:
Municipal commercial paper and demand notes		—		18,005		—		18,005
Corporate commercial paper		—		26,377		—		26,377
Holdings of New GM Securities:
New GM Common Stock		526,533		—		—		526,533
New GM Warrants		587,545		—		—		587,545
Total Assets	$	1,123,031	$	44,382	$	—	$	1,167,413
Liabilities:
Liquidating distributions payable	$	42,111	$	—	$	—	$	42,111