Weighted Average Remaining Lives, Amortization Expense and Estimated Amortization Expense for Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2011 Year	Oct. 31, 2010	Oct. 31, 2009
Goodwill and Intangible Assets Disclosure [Line Items]
Weighted Average Remaining Life	11.5
Amortization Expense	$ 23,780	$ 11,425	$ 11,384
Estimated Amortization Expense 2012	21,907
Estimated Amortization Expense 2013	19,517
Estimated Amortization Expense 2014	17,372
Estimated Amortization Expense 2015	15,161
Estimated Amortization Expense 2016	13,108
Customer contracts and relationships
Goodwill and Intangible Assets Disclosure [Line Items]
Weighted Average Remaining Life	11.6
Amortization Expense	22,655	11,099	10,872
Estimated Amortization Expense 2012	21,411
Estimated Amortization Expense 2013	19,164
Estimated Amortization Expense 2014	17,061
Estimated Amortization Expense 2015	14,994
Estimated Amortization Expense 2016	12,941
Trademarks and Trade Names
Goodwill and Intangible Assets Disclosure [Line Items]
Weighted Average Remaining Life	4.6
Amortization Expense	779	110	313
Estimated Amortization Expense 2012	198
Estimated Amortization Expense 2013	140
Estimated Amortization Expense 2014	140
Estimated Amortization Expense 2015	140
Estimated Amortization Expense 2016	140
Other (contract rights, etc.)
Goodwill and Intangible Assets Disclosure [Line Items]
Weighted Average Remaining Life	3.5
Amortization Expense	346	216	199
Estimated Amortization Expense 2012	298
Estimated Amortization Expense 2013	213
Estimated Amortization Expense 2014	171
Estimated Amortization Expense 2015	27
Estimated Amortization Expense 2016	$ 27