Additional tax benefit relating to retroactive reinstatement of research credit.

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- Definition

Additional tax benefits related to adjustments for deferred taxes from reduction in foreign tax rate.

+ Details

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- Definition

Additional tax expense related to Medicare Part D subsidies.

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- Definition

Favorable adjustment related to settlement with tax authorities

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- Definition

Income Taxes.

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- Definition

Tax benefit recognized from write off of tax basis in product lines.

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- Definition

Tax benefit related to the consolidation of certain operations and legal entities.

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- Definition

Tax benefit related to deductions associated with employee stock ownership plan.

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- Definition

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 47

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph h
-Subparagraph 2
-Article 4

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- Definition

The gross amount of unrecognized tax benefits (tax reductions recognized in financial reports but excluded from tax returns) pertaining to uncertain tax positions taken in tax returns as of the beginning balance sheet date, excluding amounts pertaining to examined tax returns.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 48
-Paragraph 21
-Subparagraph a

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The gross amount of decreases in unrecognized tax benefits resulting from settlements with taxing authorities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 48
-Paragraph 21
-Subparagraph a(3)

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- Definition

This element represents the amount of interest expense accrued as of the date of the statement of financial position for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 48
-Paragraph 21
-Subparagraph c

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 48
-Paragraph 15

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- Definition

The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 48
-Paragraph 21
-Subparagraph b

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Income taxes (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jul. 31, 2011	Jul. 31, 2010	Jul. 31, 2011	Jul. 31, 2010	Oct. 31, 2010
Income taxes (Textual) [Abstract]
Effective tax rate	27.70%	16.80%	29.10%	27.60%
Additional tax benefit related to 2010			$ 1,580
Additional tax expense related to Medicare Part D subsidies				5,255
Tax Benefit, State tax			3,500
Tax benefit, related to deductions associated with Employee Stock Ownership Plan			549
Balance of unrecognized Tax Benefit	2,476		2,476		4,078
Unrecognized Tax Benefit if recognized would impact effective tax rate	2,417		2,417		4,019
Tax Benefit Recognized From Write Off of Tax Basis in Product Lines		10,700
Accrued Interest Expense related to unrecognized tax benefits	304		304		468
Unrecognized tax benefits related to settlements	2,027
Unrecognized tax benefits decreased due to settlements with tax authorities	1,740
Additional tax benefits related to adjustments for deferred taxes from reduction in foreign tax rate	$ 368