Consolidated Statements of Changes in Stockholders' Equity (Deficit) - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-in Capital
Accumulated Other Comprehensive Income (Loss)
Accumulated Deficit
Beginning Balance at Oct. 31, 2012 $ (88,972) $ 1,006 $ 5,797,765 $ (3,354) $ (5,884,389)
Beginning Balance (in shares) at Oct. 31, 2012   100,601,792      
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net income (loss) (85,431)       (85,431)
Other comprehensive loss (4,420)     (4,420)  
Issuance of shares from Cyan acquisition 0        
Equity component of convertible notes payable issued 43,131   43,131    
Equity component of deferred debt issuance costs (603)   (603)    
Issuance of shares from employee equity plans 15,898 $ 31 15,867    
Issuance of shares from employee equity plans (in shares)   3,103,917      
Share-based compensation expense 37,720   37,720    
Ending Balance at Oct. 31, 2013 (82,677) $ 1,037 5,893,880 (7,774) (5,969,820)
Ending Balance (in shares) at Oct. 31, 2013   103,705,709      
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net income (loss) (40,637)       (40,637)
Other comprehensive loss (6,894)     (6,894)  
Issuance of shares from Cyan acquisition 0        
Issuance of shares from employee equity plans 17,663 $ 33 17,630    
Issuance of shares from employee equity plans (in shares)   3,274,251      
Share-based compensation expense 42,930   42,930    
Ending Balance at Oct. 31, 2014 $ (69,615) $ 1,070 5,954,440 (14,668) (6,010,457)
Ending Balance (in shares) at Oct. 31, 2014 106,979,960 106,979,960      
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net income (loss) $ 11,667       11,667
Other comprehensive loss (7,458)     (7,458)  
Issuance of shares from Cyan acquisition 302,114 $ 106 302,008    
Issuance of shares from Cyan acquisition (in shares)   10,638,553      
Equity component of convertible notes payable issued 82,164   82,164    
Conversion of convertible notes into common shares 216,389 $ 135 216,254    
Conversion of convertible notes into common shares (in shares)   13,488,013      
Issuance of shares from employee equity plans $ 30,275 $ 45 30,230    
Issuance of shares from employee equity plans (in shares) 1,165,000 4,505,691      
Share-based compensation expense $ 55,340   55,340    
Ending Balance at Oct. 31, 2015 $ 620,876 $ 1,356 $ 6,640,436 $ (22,126) $ (5,998,790)
Ending Balance (in shares) at Oct. 31, 2015 135,612,217 135,612,217