Consolidated Statements of Operations - USD ($)
shares in Thousands, $ in Thousands
 12 Months Ended
Oct. 31, 2015
Oct. 31, 2014
Oct. 31, 2013
Revenue:      
Products $ 2,002,395 $ 1,865,826 $ 1,680,125
Services 443,274 422,463 402,421
Total revenue 2,445,669 2,288,289 2,082,546
Cost of goods sold:      
Products 1,120,373 1,083,022 967,510
Services 249,733 256,915 249,861
Total cost of goods sold 1,370,106 1,339,937 1,217,371
Gross profit 1,075,563 948,352 865,175
Operating expenses:      
Research and development 414,201 401,180 383,408
Selling and marketing 333,836 328,325 304,170
General and administrative 123,402 126,824 122,432
Amortization of intangible assets 69,511 45,970 49,771
Acquisition and integration costs 25,539 0 0
Restructuring costs 8,626 349 7,169
Total operating expenses 975,115 902,648 866,950
Income (loss) from operations 100,448 45,704 (1,775)
Interest and other income (loss), net (25,505) (25,262) (5,744)
Interest expense (51,179) (47,115) (44,042)
Loss on extinguishment of debt 0 0 (28,630)
Income (loss) before income taxes 23,764 (26,673) (80,191)
Provision for income taxes 12,097 13,964 5,240
Net income (loss) $ 11,667 $ (40,637) $ (85,431)
Basic net income (loss) per common share (in dollars per share) $ 0.10 $ (0.38) $ (0.83)
Diluted net income (loss) per potential common share (in dollars per share) $ 0.10 $ (0.38) $ (0.83)
Weighted average basic common shares outstanding (in shares) 118,416 105,783 102,350
Weighted average diluted potential common shares outstanding (in shares) 120,101 105,783 102,350