Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Jul. 31, 2012	Jul. 31, 2011
Cash flows from operating activities:
Net income	$ 27,808	$ 21,876
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	18,657	17,951
Amortization of debt issuance costs	357	357
Share-based compensation	3,063	2,184
Provision for bad debts	113	140
Write-down for inventory obsolescence	533	626
Profit on sale of leased assets	(721)	(4,182)
Loss on sale of assets	231	238
Excess tax benefit from exercise of stock options	(1,370)	(808)
Changes in operating assets and liabilities:
Accounts receivable and investment in sales-type leases and notes receivable	(5,191)	3,961
Inventories	(3,261)	(3,948)
Accounts payable and accrued liabilities	(2,658)	(21,232)
Customer deposits and deferred revenue	561	825
Income taxes payable	3,300	3,666
Deferred income taxes	2,590	1,036
Prepaid income taxes	(4,714)	3,812
Other	(3,430)	10,190
Net cash provided by operating activities	35,868	36,692
Cash flows from investing activities:
Proceeds from sale of leased assets	1,640	6,240
Proceeds from sale of assets		86
Payments for products leased and held for lease	(11,227)	(11,608)
Purchases of property and equipment	(5,852)	(2,683)
Purchases of intangible assets	(4,333)	(6,269)
Acquisition of business	(5,500)	(6,499)
Other	(690)	(701)
Net cash used in investing activities	(25,962)	(21,434)
Cash flows from financing activities:
Proceeds from Revolver	11,000	16,500
Debt payments on Revolver	(34,000)	(15,000)
Proceeds from issuances of common stock, net	16,238	2,156
Excess tax benefit from exercise of stock options	1,370	808
Other	(43)	(41)
Net cash provided by (used in) financing activities	(5,435)	4,423
Effect of exchange rate changes on cash and cash equivalents	1,370	522
Net increase in cash and cash equivalents	5,841	20,203
Cash and cash equivalents, beginning of period	22,189	9,988
Cash and cash equivalents, end of period	$ 28,030	$ 30,191