Goodwill and Other Intangible Assets (Details1) (USD $) In Thousands, unless otherwise specified	Oct. 31, 2011	Oct. 31, 2010
Summary of carrying amount of net intangible assets by class
Gross Intangible Assets	$ 286,309	$ 222,647
Accumulated Amortization	56,519	49,408
Net Intangible Assets	229,790	173,239	[1]
Trademark and Patents [Member]
Summary of carrying amount of net intangible assets by class
Gross Intangible Assets	47,419	41,040
Accumulated Amortization	17,422	15,346
Net Intangible Assets	29,997	25,694
Non-compete Agreements [Member]
Summary of carrying amount of net intangible assets by class
Gross Intangible Assets	22,743	20,456
Accumulated Amortization	8,953	7,774
Net Intangible Assets	13,790	12,682
Customer Relationships [Member]
Summary of carrying amount of net intangible assets by class
Gross Intangible Assets	183,015	146,568
Accumulated Amortization	22,449	20,528
Net Intangible Assets	160,566	126,040
Other [Member]
Summary of carrying amount of net intangible assets by class
Gross Intangible Assets	33,132	14,582
Accumulated Amortization	7,695	5,759
Net Intangible Assets	$ 25,437	$ 8,823

[1] The consolidated balance sheet as of October 31, 2010 and the consolidated statements of changes in shareholders' equity as of October 31, 2009 and 2010 have been restated to correct prior period errors. The corrections did not impact total assets, consolidated net income, or cash flows of the Company. Refer to Note 19 for additional discussion.