Derivative Instrument Notional Non Monetary Ounces Outstanding

No definition available.

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- Definition

Amount that remains recorded as an unrealized loss in accumulated other comprehensive loss as of the end of the period. The loss was incurred on forward-starting interest rate swaps and is amortized over the term of the debt to which the swaps relate.

+ References

No definition available.

+ Details

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- Definition

The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=112277219&loc=d3e80748-113994

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Details

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Hedging Instruments - Additional Information (Details) $ in Millions	12 Months Ended
	Jan. 31, 2019 USD ($) oz	Jan. 31, 2013 USD ($)
Derivative [Line Items]
Expected approximate amount of net pre-tax derivative gains included in accumulated other comprehensive loss that will be reclassified into earnings within the next 12 months	$ 2.5
2012 4.40% Series B Notes, due July 2042
Derivative [Line Items]
Debt, face amount		$ 250.0
Interest Rate Swap \| 2012 Debt Issuance
Derivative [Line Items]
Unrealized loss on interest rate swaps	17.3
Interest Rate Swap \| 2014 Debt Issuance
Derivative [Line Items]
Unrealized loss on interest rate swaps	$ 3.5
Foreign Exchange Forward \| Maximum
Derivative [Line Items]
Derivative, term of contract	12 months
Precious Metal Forward Contracts \| Maximum
Derivative [Line Items]
Derivative, term of contract	17 months
Platinum
Derivative [Line Items]
Notional amount of precious metal hedge (in ounces) \| oz	34,000
Silver
Derivative [Line Items]
Notional amount of precious metal hedge (in ounces) \| oz	624,000
Gold
Derivative [Line Items]
Notional amount of precious metal hedge (in ounces) \| oz	83,300