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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
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-Topic 835
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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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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.

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No definition available.

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount of the required periodic payments applied to principal.

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-Topic 210
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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-Section S99
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- Definition

Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Debt (Narrative) (Details) $ in Millions	12 Months Ended
Debt (Narrative) (Details) $ in Millions	Jul. 31, 2016 JPY (¥)	Jul. 31, 2016 USD ($)	Jul. 31, 2016 USD ($)	Jul. 22, 2016 JPY (¥)	Jul. 31, 2015 USD ($)
Debt Instrument [Line Items]
Long-term Debt			$ 403.0		$ 391.0
Long-term Debt, Current Maturities			(51.2)		(1.8)
Long-term debt			351.8		389.2
Five Point Four Eight Percent Unsecured Senior Notes Due June One Two Thousand Seventeen
Debt Instrument [Line Items]
Long-term Debt			$ 50.0		$ 50.0
Debt Instrument, Maturity Date	Jun. 01, 2017	Jun. 01, 2017
Debt Instrument, Interest Rate, Stated Percentage	5.48%		5.48%		5.48%
Debt Instrument, Periodic Payment, Principal		$ 50.0
Five Point Four Eight Percent Unsecured Senior Notes Due September Twenty Eight Two Thousand Seventeen
Debt Instrument [Line Items]
Long-term Debt			$ 25.0		$ 25.0
Debt Instrument, Maturity Date	Sep. 28, 2017	Sep. 28, 2017
Debt Instrument, Interest Rate, Stated Percentage	5.48%		5.48%		5.48%
Debt Instrument, Periodic Payment, Principal		$ 25.0
Five Point Four Eight Percent Unsecured Senior Notes Due November Thirty Two Thousand Seventeen
Debt Instrument [Line Items]
Long-term Debt			$ 25.0		$ 25.0
Debt Instrument, Maturity Date	Nov. 30, 2017	Nov. 30, 2017
Debt Instrument, Interest Rate, Stated Percentage	5.48%		5.48%		5.48%
Debt Instrument, Periodic Payment, Principal		$ 25.0
Three Point Seven Two Percent Unsecured Senior Notes Due March Twenty Seven Two Thousand Twenty Four
Debt Instrument [Line Items]
Long-term Debt			$ 125.0		$ 125.0
Debt Instrument, Maturity Date	Mar. 27, 2024	Mar. 27, 2024
Debt Instrument, Interest Rate, Stated Percentage	3.72%		3.72%		3.72%
Debt Instrument, Periodic Payment, Principal		$ 125.0
Unsecured Senior Notes Five
Debt Instrument [Line Items]
Long-term Debt			$ 25.0		$ 25.0
Debt Instrument, Maturity Date	Apr. 16, 2025	Apr. 16, 2025
Debt Instrument, Interest Rate, Stated Percentage	2.93%		2.93%		2.93%
Debt Instrument, Face Amount			$ 25.0
Debt Instrument, Periodic Payment, Principal		$ 25.0
Unsecured Senior Notes Six
Debt Instrument [Line Items]
Long-term Debt			$ 125.0		$ 125.0
Debt Instrument, Maturity Date	Jun. 17, 2030	Jun. 17, 2030
Debt Instrument, Interest Rate, Stated Percentage	3.18%		3.18%		3.18%
Debt Instrument, Face Amount			$ 125.0
Debt Instrument, Periodic Payment, Principal		$ 125.0
Variable Rate Guaranteed Senior Note Due May Nineteen Two Thousand Nineteen [Member]
Debt Instrument [Line Items]
Long-term Debt			$ 16.0		$ 13.3
Debt Instrument, Maturity Date	May 19, 2019	May 19, 2019
Debt Instrument, Interest Rate, Stated Percentage	0.41%		0.41%		0.41%
Debt Instrument, Periodic Payment, Principal \| ¥	¥ 1,650,000,000
Variable Rate Guaranteed Senior Note Due July Twenty Second Two Thousand Twenty One [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date	Jul. 15, 2021	Jul. 15, 2021
Debt Instrument, Interest Rate, Stated Percentage	0.25%		0.25%
Debt Instrument, Face Amount \| ¥	¥ 9,700,000			¥ 1,000,000,000.00
Debt Instrument, Periodic Payment, Principal \| ¥	¥ 1,000,000,000
Capitalized Lease Obligations And Other With Various Maturity Dates And Interest Rates
Debt Instrument [Line Items]
Long-term Debt			$ 1.9		$ 1.9
Terminated Interest Rate Swap Contract
Debt Instrument [Line Items]
Long-term Debt			$ 0.4		$ 0.8