GOODWILL AND OTHER INTANGIBLE ASSETS (Details 2) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2011 Y	Oct. 31, 2010	Oct. 31, 2009
Other Intangible Assets
Estimated life, low end of range (in years)	2
Estimated life, high end of range (in years)	15
Gross Carrying Amount	$ 51,378	$ 33,997
Accumulated Amortization	(21,113)	(16,316)
Net	30,265	17,681
Total other intangible assets, gross	56,659	39,278
Total other intangible assets, net	35,546	22,962
Amortization expense for intangible assets	4,967	2,903	2,504
Estimated amortization expense
2012	5,504
2013	5,311
2014	4,976
2015	4,761
2016	4,233
After 2016	5,480
Patents
Other Intangible Assets
Estimated life, low end of range (in years)	5	5
Estimated life, high end of range (in years)	13	13
Gross Carrying Amount	9,403	8,703
Accumulated Amortization	(7,505)	(7,034)
Net	1,898	1,669
Non-compete agreements
Other Intangible Assets
Estimated life, low end of range (in years)	2	2
Estimated life, high end of range (in years)	10	10
Gross Carrying Amount	6,250	3,039
Accumulated Amortization	(2,685)	(1,910)
Net	3,565	1,129
Customer related
Other Intangible Assets
Estimated life, low end of range (in years)	5	6
Estimated life, high end of range (in years)	13	13
Gross Carrying Amount	8,189	7,471
Accumulated Amortization	(2,857)	(2,061)
Net	5,332	5,410
Developed technology
Other Intangible Assets
Estimated life, low end of range (in years)	2	2
Estimated life, high end of range (in years)	10	10
Gross Carrying Amount	25,236	13,984
Accumulated Amortization	(7,016)	(4,511)
Net	18,220	9,473
Trade name
Other Intangible Assets
Estimated life (in years)	5
Gross Carrying Amount	1,500
Accumulated Amortization	(250)
Net	1,250
Non-amortizable - Trade names	5,281	5,281
Other.
Other Intangible Assets
Gross Carrying Amount	800	800
Accumulated Amortization	$ (800)	$ (800)