Income Taxes - Summary of Deferred Taxes (Detail) $ in Thousands	Jun. 30, 2016 USD ($)
Deferred tax assets:
Reserves for expected costs of liquidation	$ 7,375
Net operating and capital loss carryovers	114,221
Gross deferred tax assets	121,596
Less: Valuation allowance	(121,282)
Deferred tax asset, net of valuation allowance	314
Deferred tax liabilities:
Accrued investment income	(314)
Gross deferred tax liabilities	(314)
Net deferred taxes	$ 0