Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Jul. 31, 2013	Jul. 31, 2012
Cash flows from operating activities:
Net loss	$ (75,634)	$ (105,250)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Loss on extinguishment of debt	28,630	0
Depreciation of equipment, furniture and fixtures, and amortization of leasehold improvements	42,613	43,514
Share-based compensation costs	28,032	23,656
Amortization of intangible assets	53,485	55,965
Provision for inventory excess and obsolescence	15,301	19,071
Provision for warranty	15,148	23,495
Other	8,384	8,414
Changes in assets and liabilities:
Accounts receivable	(86,808)	37,223
Inventories	9,267	(34,038)
Prepaid expenses and other	(56,958)	10,890
Accounts payable, accruals and other obligations	49,253	35,632
Deferred revenue	10,414	(22,071)
Net cash provided by operating activities	41,127	96,501
Cash flows used in investing activities:
Payments for equipment, furniture, fixtures and intellectual property	(31,884)	(33,000)
Restricted cash	1,921	3,546
Purchase of available for sale securities	(144,893)	0
Proceeds from maturities of available for sale securities	80,062	0
Proceeds from sale of cost method investment	0	524
Net cash used in investing activities	(94,794)	(28,930)
Cash flows from financing activities:
Payment of long term debt	(216,210)	0
Payment for debt and equity issuance costs	(3,670)	0
Payment of capital lease obligations	(2,370)	(1,231)
Proceeds from issuance of common stock	14,060	12,022
Net cash provided by (used in) financing activities	(208,190)	10,791
Effect of exchange rate changes on cash and cash equivalents	(2,408)	(3,026)
Net increase (decrease) in cash and cash equivalents	(261,857)	78,362
Cash and cash equivalents at beginning of period	642,444	541,896
Cash and cash equivalents at end of period	378,179	617,232
Supplemental disclosure of cash flow information
Cash paid during the period for interest	21,674	18,978
Cash paid during the period for income taxes, net	7,117	7,807
Non-cash investing and financing activities
Purchase of equipment in accounts payable	1,222	2,686
Capital Lease Obligations Incurred	$ 2,538	$ 6,033