CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)
In Thousands, unless otherwise specified
Oct. 31, 2012
Jan. 31, 2012
Current assets:    
Cash and cash equivalents $ 273,324 $ 31,599
Accounts receivable, net 40,178 34,495
Prepaid expenses and other current assets 5,694 4,261
Total current assets 319,196 70,355
Restricted cash   514
Property and equipment, net 10,758 8,919
Other assets 281 2,435
Total assets 330,235 82,223
Current liabilities:    
Accounts payable 1,195 1,455
Accrued payroll and compensation 25,715 16,142
Accrued expenses and other liabilities 4,672 7,711
Deferred revenue, current portion 61,964 42,923
Term debt, current portion   982
Total current liabilities 93,546 69,213
Deferred revenue, non-current 12,002 9,742
Preferred stock warrant liability   2,133
Other liabilities, non-current 322 561
Term debt, non-current   1,307
Total non-current liabilities 12,324 13,743
Total liabilities 105,870 82,956
Commitments and contingencies (Note 4)      
Convertible preferred stock    
Convertible preferred stock, $0.001 par value; no shares authorized, issued or outstanding at October 31, 2012, and 57,904,560 shares authorized with 56,930,194 shares issued and outstanding at January 31, 2012   40,913
Stockholders' equity (deficit):    
Preferred stock: $0.001 par value; 20,000,000 shares authorized; no shares issued or outstanding at October 31, 2012; and no shares authorized, issued or outstanding at January 31, 2012      
Common stock: $0.001 par value; 1,000,000,000 shares authorized; 96,925,524 shares issued and outstanding at October 31, 2012, and 106,511,960 shares authorized with 23,092,407 shares issued and outstanding at January 31, 2012 97 23
Accumulated other comprehensive loss (15) (24)
Additional paid-in capital 308,820 12,373
Accumulated deficit (84,537) (54,018)
Total stockholders' equity (deficit) 224,365 (41,646)
Total liabilities, convertible preferred stock and stockholders' equity (deficit) $ 330,235 $ 82,223