CONDENSED CONSOLIDATED BALANCE SHEET PARENTHETICAL (USD $)	Mar. 31, 2012
Common stock, par value	$ 0.01
Common stock, shares authorized	200,000,000
Common stock, shares issued	39,967,749
Common stock, shares outstanding	36,385,268
Preferred stock, par value	$ 0.01
Preferred stock, shares authorized	50,000,000
Preferred stock, shares issued	0