Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jul. 31, 2019	Oct. 31, 2018
Current assets:
Cash and cash equivalents	$ 723,229	$ 745,423
Short-term investments	119,670	148,981
Accounts receivable, net of allowance for doubtful accounts of $16.3 million and $17.4 million as of July 31, 2019 and October 31, 2018, respectively.	798,884	786,502
Inventories	356,818	262,751
Prepaid expenses and other	292,631	198,945
Total current assets	2,291,232	2,142,602
Long-term investments	0	58,970
Equipment, building, furniture and fixtures, net	280,630	292,067
Goodwill	297,884	297,968
Other intangible assets, net	121,270	148,225
Deferred tax asset, net	700,206	745,039
Other long-term assets	84,486	71,652
Total assets	3,775,708	3,756,523
Current liabilities:
Accounts payable	356,716	340,582
Accrued liabilities and other short-term obligations	325,137	340,075
Deferred revenue	102,182	111,134
Current portion of long-term debt	7,000	7,000
Debt conversion liability	0	164,212
Total current liabilities	791,035	963,003
Long-term deferred revenue	42,848	58,323
Other long-term obligations	140,523	119,413
Long-term debt, net	681,918	686,450
Total liabilities	1,656,324	1,827,189
Commitments and contingencies (Note 20)
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; 155,113,012 and 154,318,531 shares issued and outstanding	1,551	1,543
Additional paid-in capital	6,866,341	6,881,223
Accumulated other comprehensive loss	(23,764)	(5,780)
Accumulated deficit	(4,724,744)	(4,947,652)
Total stockholders’ equity	2,119,384	1,929,334
Total liabilities and stockholders’ equity	$ 3,775,708	$ 3,756,523