CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	6 Months Ended
	Apr. 30, 2011	Apr. 30, 2010
Operating Activities:
Net income from consolidated operations	$ 44,649,000	$ 32,938,000
Adjustments to reconcile net income from consolidated operations to net cash provided by operating activities:
Depreciation and amortization	8,891,000	8,878,000
Impairment of intangible assets	0	281,000
Deferred income tax provision	242,000	610,000
Tax benefit from stock option exercises	7,718,000	952,000
Excess tax benefit from stock option exercises	(6,358,000)	(670,000)
Stock option compensation expense	1,128,000	610,000
Changes in operating assets and liabilities, net of acquisitions:
(Increase) decrease in accounts receivable	(3,597,000)	1,863,000
Increase in inventories	(6,153,000)	(184,000)
Increase in prepaid expenses and other current assets	(2,777,000)	(1,435,000)
Increase (decrease) in trade accounts payable	4,119,000	(614,000)
Decrease in accrued expenses and other current liabilities	(2,969,000)	(2,250,000)
Increase (decrease) in income taxes payable	5,985,000	(688,000)
Other	203,000	(28,000)
Net cash provided by operating activities	51,081,000	40,263,000
Investing Activities:
Acquisitions, net of cash acquired	(27,936,000)	(36,189,000)
Capital expenditures	(3,845,000)	(4,600,000)
Other	3,000	(2,000)
Net cash used in investing activities	(31,778,000)	(40,791,000)
Financing Activities:
Payments on revolving credit facility	(35,000,000)	(28,000,000)
Borrowings on revolving credit facility	28,000,000	37,000,000
Acquisitions of noncontrolling interests	(7,241,000)	(727,000)
Redemptions of common stock related to stock option exercises	(5,432,000)	(353,000)
Distributions to noncontrolling interests	(4,450,000)	(4,446,000)
Cash dividends paid	(2,092,000)	(1,638,000)
Excess tax benefit from stock option exercises	6,358,000	670,000
Proceeds from stock option exercises	1,806,000	1,385,000
Other	(125,000)	(102,000)
Net cash (used in) provided by financing activities	(18,176,000)	3,789,000
Effect of exchange rate changes on cash	90,000	97,000
Net increase in cash and cash equivalents	1,217,000	3,358,000
Cash and cash equivalents at beginning of year	6,543,000	7,167,000
Cash and cash equivalents at end of period	$ 7,760,000	$ 10,525,000