Fair Value of Financial Instruments	3 Months Ended
Fair Value of Financial Instruments	Apr. 30, 2011
Fair Value of Financial Instruments
Fair Value of Financial Instruments	NOTE 7 — FAIR VALUE OF FINANCIAL INSTRUMENTS The Company carries its assets and liabilities at fair value and classifies and discloses its assets and liabilities in one of the following three categories: Level 1 – quoted market prices in active markets for identical assets and liabilities; Level 2 – inputs other than quoted market prices included in level 1 above that are observable for the asset or liability, either directly or indirectly; and, Level 3 –unobservable inputs for the asset or liability. A financial instrument's level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. The Company's foreign currency forward contracts are measured on a recurring basis based on foreign currency spot rates and forward rates quoted by banks or foreign currency dealers (level 2 criteria) and are marked-to-market each period with gains and losses on these contracts recorded in the Company's Consolidated Statement of Income on a basis consistent with the classification of the change in the fair value of the underlying transactions giving rise to these foreign currency exchange gains and losses in the period in which their value changes, with the offsetting amount for unsettled positions being included in either other current assets or other current liabilities in the Consolidated Balance Sheet. The fair value of the Company's outstanding foreign currency forward contracts at April 30, 2011 and 2010 was an unrealized gain of $7.3 million and $4.5 million, respectively, and an unrealized loss of $13.6 million and $1.0 million, respectively (see further discussion below in Note 8 – Derivative Instruments). The Company utilizes life insurance policies to fund certain of the Company's nonqualified employee benefit plans. The investments contained within the life insurance policies are marked-to-market each period by analyzing the change in the underlying value of the invested assets (level 2 criteria) and the gains and losses are recorded in the Company's Consolidated Statement of Income. The related deferred compensation liability is also marked-to-market each period based upon the various investment return alternatives selected by the participants of the nonqualified employee benefit plans (level 2 criteria) and the gains and losses are recorded in the Company's Consolidated Statement of Income. The $350.0 million of convertible senior debentures are carried at cost, less unamortized debt discount. The estimated fair value of the convertible senior debentures was approximately $380.7 million at April 30, 2011, based upon quoted market information (level 1 criteria). The carrying amounts of cash and cash equivalents, accounts receivable, accounts payable and accrued expenses approximate fair value because of the short maturity of these items. The carrying amount of debt outstanding pursuant to revolving credit facilities and loans payable approximates fair value as the majority of these instruments have variable interest rates which approximate current market rates (level 2 criteria).

This item represents the complete disclosure regarding the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments, assets, and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the Company is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risk is are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

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