Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2011 Parent Company And Solar Green Technology [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective income tax rate	(425.90%)	7.50%	(8.70%)		(23.50%)
Unrecognized tax benefits or liabilities	$ 0		$ 0	$ 0