Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Balance Sheets (Parenthetical)

v2.3.0.15
Condensed Consolidated Balance Sheets (Parenthetical) (USD $)
In Thousands, except Share data
Oct. 31, 2011
Jan. 31, 2011
Condensed Consolidated Balance Sheets [Abstract]    
Allowance for accounts receivable $ 474 $ 503
Redeemable convertible preferred stock, par value $ 0.0001 $ 0.0001
Redeemable convertible preferred stock, shares authorized   134,051,713
Redeemable convertible preferred stock, shares issued   133,534,334
Redeemable convertible preferred stock, shares outstanding   133,534,334
Aggregate liquidation preference   $ 147,891
Preferred stock, par value $ 0.0001 $ 0.0001
Preferred stock, shares authorized 10,000,000 0
Preferred stock, shares issued 0 0
Preferred stock, shares outstanding 0 0
Common stock, par value $ 0.0001 $ 0.0001
Common stock, shares authorized 1,000,000,000 220,000,000
Common stock, shares issued 161,354,659 14,510,655
Common stock, shares outstanding 161,354,659 14,510,655