Quarterly Financial Data (Unaudited) (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2011	Oct. 31, 2010		Oct. 31, 2009		Oct. 31, 2008
Assets
Trade accounts receivable, less allowance of $13,754 in 2011 and $13,311 in 2010	$ 568,624	$ 480,158	[1]
Total assets	4,207,282	3,498,445	[1]	2,823,929
Liabilities and Shareholders' Equity
Currency Translation Adjustment	(46,354)	388	[1]	(26,372)
Total shareholders' equity	1,392,173	1,335,885	[1]	1,087,045	[1]	1,068,802	[1]
Total liabilities and shareholders' equity	4,207,282	3,498,445	[1]	2,823,982
Other comprehensive income (loss):
foreign currency translation adjustment	(32,170)	26,760		32,868
Total shareholders' equity	1,392,173	1,335,885	[1]	1,087,045	[1]	1,068,802	[1]
Previously Stated [Member]
Assets
Trade accounts receivable, less allowance of $13,754 in 2011 and $13,311 in 2010	480,150
Total assets	3,498,445
Liabilities and Shareholders' Equity
Currency Translation Adjustment	44,612	44,612		(6,825)
Total shareholders' equity	1,355,432	1,355,432		1,355,432		1,088,349
Total liabilities and shareholders' equity		3,498,445		2,823,982
Other comprehensive income (loss):
foreign currency translation adjustment				51,437
Total shareholders' equity	1,355,432	1,355,432		1,355,432		1,088,349
Adjustment [Member]
Assets
Trade accounts receivable, less allowance of $13,754 in 2011 and $13,311 in 2010	19,547
Total assets	19,547
Liabilities and Shareholders' Equity
Currency Translation Adjustment	19,547	(44,612)		(19,547)
Total shareholders' equity	19,547	(19,547)		19,547		(19,547)
Total liabilities and shareholders' equity		0		0
Other comprehensive income (loss):
foreign currency translation adjustment				19,547
Total shareholders' equity	19,547	(19,547)		19,547		(19,547)
Corrected [Member]
Assets
Trade accounts receivable, less allowance of $13,754 in 2011 and $13,311 in 2010	460,603
Total assets	3,478,898
Liabilities and Shareholders' Equity
Currency Translation Adjustment	25,065
Total shareholders' equity	1,335,885			1,335,885
Other comprehensive income (loss):
foreign currency translation adjustment				31,890
Total shareholders' equity	$ 1,335,885			$ 1,335,885

[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.