Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Apr. 30, 2018	Oct. 31, 2017
Current assets:
Cash and cash equivalents	$ 652,096	$ 640,513
Short-term investments	268,584	279,133
Accounts receivable, net of allowance for doubtful accounts of $17.7 million and $17.6 million as of April 30, 2018 and October 31, 2017, respectively.	647,380	622,183
Inventories	231,338	267,143
Prepaid expenses and other	186,024	197,339
Total current assets	1,985,422	2,006,311
Long-term investments	58,895	49,783
Equipment, building, furniture and fixtures, net	298,631	308,465
Goodwill	267,442	267,458
Other intangible assets, net	90,573	100,997
Deferred tax asset, net	734,824	1,155,104
Other long-term assets	70,767	63,593
Total assets	3,506,554	3,951,711
Current liabilities:
Accounts payable	264,398	260,098
Accrued liabilities and other short-term obligations	270,231	322,934
Deferred revenue	101,918	102,418
Current portion of long-term debt	353,208	352,293
Total current liabilities	989,755	1,037,743
Long-term deferred revenue	76,725	82,589
Other long-term obligations	110,417	111,349
Long-term debt, net	585,538	583,688
Total liabilities	1,762,435	1,815,369
Commitments and contingencies (Note 17)
Stockholders’ equity:
Preferred stock – par value $0.01; 20,000,000 shares authorized; zero shares issued and outstanding	0	0
Common stock – par value $0.01; 290,000,000 shares authorized; 143,427,976 and 143,043,227 shares issued and outstanding	1,434	1,430
Additional paid-in capital	6,810,226	6,810,182
Accumulated other comprehensive income (loss)	(5,072)	(11,017)
Accumulated deficit	(5,062,469)	(4,664,253)
Total stockholders’ equity	1,744,119	2,136,342
Total liabilities and stockholders’ equity	$ 3,506,554	$ 3,951,711