Components of Income Tax Provision (Detail) (USD $)	12 Months Ended		707 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011
Income Taxes Provision Benefit Summary Of Income Taxes [Line Items]
Current provision (benefit)		$ (3,000)
Deferred asset valuation allowance (reversal)		3,000
Net income tax provision (benefit)