CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Aug. 31, 2015	Feb. 28, 2015
Class A Common Stock
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	170,000,000	170,000,000
Common stock, shares issued	40,472,640	39,054,719
Common stock, shares outstanding	40,472,640	39,054,719
Class B Common Stock
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	30,000,000	30,000,000
Common stock, shares issued	4,569,464	4,569,464
Common stock, shares outstanding	4,569,464	4,569,464
Series A preferred stock
Series A non-cumulative convertible preferred stock, par value	$ 0.01	$ 0.01
Series A non-cumulative convertible preferred stock, liquidation preference	$ 50.00	$ 50.00
Series A non-cumulative convertible preferred stock, aggregate liquidation preference and redemption amount	$ 44,321	$ 46,450
Series A non-cumulative convertible preferred stock, shares authorized	2,875,000	2,875,000
Series A non-cumulative convertible preferred stock, shares issued	886,419	928,991
Series A non-cumulative convertible preferred stock, shares outstanding	886,419	928,991