PREFERRED STOCK - Additional Information (Detail)	Dec. 31, 2011	Dec. 31, 2010	Feb. 26, 2010	Dec. 31, 2009
Stockholders Equity Note [Line Items]
Preferred stock, shares authorized	20,000,000	20,000,000		20,000,000
Preferred stock, undesignated shares			500,000
Blank Check Preferred Stock
Stockholders Equity Note [Line Items]
Preferred stock, shares authorized			20,000,000	19,500,000
Series B Preferred Stock
Stockholders Equity Note [Line Items]
Preferred stock, shares authorized				500,000