Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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

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

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount of long-term debt and lease obligation, classified as noncurrent.

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Long-Term Debt (Schedule of Long-term Debt) (Details)	Jul. 31, 2020 USD ($)	Jul. 31, 2020 EUR (€)	Jul. 31, 2020 JPY (¥)	Jul. 31, 2019 USD ($)
Debt Instrument
Debt issuance costs, net	$ (1,900,000)			$ (1,500,000)
Subtotal	623,100,000			634,600,000
Less: current maturities	(5,700,000)			(50,200,000)
Long-term debt	617,400,000			584,400,000
Senior Notes \| Variable rate committed, unsecured $500.0 million revolving credit facility due July 21, 2022, interest rate of 1.29% as of July 31, 2020
Debt Instrument
Long-term debt, gross	240,000,000.0			286,500,000
Principal amount	$ 500,000,000.0
Debt instrument interest rate (percent)	1.29%	1.29%	1.29%
Senior Notes \| Unsecured senior notes, $125.0 million principal payment due March 27, 2024, interest rate of 3.72% payable semi-annually
Debt Instrument
Long-term debt, gross	$ 125,000,000.0			125,000,000.0
Principal amount	$ 125,000,000.0
Debt instrument interest rate (percent)	3.72%	3.72%	3.72%
Senior Notes \| Unsecured senior notes, $125.0 million principal payment due June 17, 2030, interest rate of 3.18% payable semi-annually
Debt Instrument
Long-term debt, gross	$ 125,000,000.0			125,000,000.0
Principal amount	$ 125,000,000.0
Debt instrument interest rate (percent)	3.18%	3.18%	3.18%
Senior Notes \| Variable rate committed, unsecured €80.0 million term loan due October 28, 2024, interest rate of 0.70% as of July 31, 2020
Debt Instrument
Long-term debt, gross	$ 94,700,000			0
Principal amount \| €		€ 80,000,000.0
Debt instrument interest rate (percent)	0.70%	0.70%	0.70%
Senior Notes \| Variable rate committed, unsecured $50.0 million term loan due July 21, 2020
Debt Instrument
Long-term debt, gross	$ 0			50,000,000.0
Principal amount \| ¥			¥ 50,000,000.0
Senior Notes \| Unsecured senior notes, $25.0 million principal payment due April 16, 2025, interest rate of 2.93% payable semi-annually
Debt Instrument
Long-term debt, gross	25,000,000.0			25,000,000.0
Principal amount	$ 25,000,000.0
Debt instrument interest rate (percent)	2.93%	2.93%	2.93%
Senior Notes \| Variable rate guaranteed senior note, ¥1.65 billion due May 20, 2024. As of July 31, 2020, ¥1.0 billion outstanding with interest rate of 0.41% payable quarterly
Debt Instrument
Long-term debt, gross	$ 9,600,000		¥ 1,000,000,000.0	15,200,000
Principal amount \| ¥			¥ 1,650,000,000
Debt instrument interest rate (percent)	0.41%	0.41%	0.41%
Senior Notes \| Variable rate guaranteed senior note, ¥1.00 billion due July 15, 2021. As of July 31, 2020, ¥600.0 million outstanding with interest rate of 0.27% payable quarterly
Debt Instrument
Long-term debt, gross	$ 5,700,000		¥ 600,000,000.0	9,200,000
Principal amount \| ¥			¥ 1,000,000,000.00
Debt instrument interest rate (percent)	0.27%	0.27%	0.27%
Capital lease obligations \| Capitalized lease obligations, with various maturity dates and interest rates
Debt Instrument
Long-term debt, gross				$ 200,000