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Debt Instrument, Minimum Percent Of Proceeds Used To Repay Debt, Net Proceeds Threshold

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Debt Issuance Costs, Gross, Equity Component

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Represents the percentage of shares of the foreign subsidiaries of the entity pledged as security under the credit agreement terms.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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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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The carrying amount of the equity component of convertible debt which may be settled in cash upon conversion.

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The price per share of the conversion feature embedded in the debt instrument.

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Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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

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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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Amount of the required periodic payments applied to interest.

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Amount of payment greater than the preceding installment payments to be paid at final maturity date of debt.

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Amount, after accumulated amortization, of debt discount.

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Weighted average interest rate of debt outstanding.

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

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Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting.

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Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences with jurisdictional netting.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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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.

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Financing Arrangements - Narrative (Details)				3 Months Ended	12 Months Ended
Financing Arrangements - Narrative (Details)	Sep. 04, 2020 USD ($)	May 15, 2020 USD ($) $ / shares Rate	May 11, 2020 USD ($)	Jul. 31, 2020 USD ($)	Jul. 31, 2020 USD ($)	Jul. 31, 2019 USD ($)	Jul. 31, 2018 USD ($)	May 31, 2020 USD ($)	May 13, 2020	May 10, 2020	Sep. 06, 2019 USD ($)	Jun. 28, 2018 USD ($)
Debt Instrument [Line Items]
Principal payment made					$ 43,625,000	$ 15,207,000	$ 0
Proceeds from issuance of convertible debt					168,000,000	0	$ 0
Floor interest rate									1.00%
Debt issuance costs, net				$ 4,246,000	4,246,000
Net debt issuance costs				11,166,000	11,166,000	2,149,000
Convertible debt				934,209,000	934,209,000	230,851,000
Deferred income taxes				49,533,000	49,533,000	29,278,000
Equity component of debt issuance costs								$ 1,377,000
Deferred income taxes (assets)				$ 4,787,000	$ 4,787,000	4,281,000
Line of Credit
Debt Instrument [Line Items]
Average interest rate				4.00%	4.00%
Debt issuance costs, net				$ 11,166,000	$ 11,166,000	2,149,000
Line of Credit \| Tranche A term loan
Debt Instrument [Line Items]
Convertible debt principal amount				546,375,000	546,375,000	190,000,000						$ 200,000,000
Principal payment made				31,500,000	43,625,000	10,000,000
Principal payment, year one				7,375,000	7,375,000
Principal payment, year two				29,500,000	29,500,000
Principal payment, year three				29,500,000	29,500,000
Principal payment, year four				29,500,000	29,500,000
Balloon payment to be paid				450,500,000	450,500,000
Line of Credit \| Revolving credit loan
Debt Instrument [Line Items]
Convertible debt principal amount				399,000,000	399,000,000	43,000,000						$ 400,000,000
Line of Credit \| Revolving credit loan \| Subsequent Event
Debt Instrument [Line Items]
Repayment of debt	$ 75,000,000
Line of Credit \| Delayed draw term loan facility
Debt Instrument [Line Items]
Convertible debt principal amount											$ 400,000
Second Amendment \| Line of Credit
Debt Instrument [Line Items]
Maximum consolidated leverage ratio			5.25							4.25
Minimum liquidity during next fiscal quarter			$ 50,000,000
Minimum liquidity, year one			$ 75,000,000
Shares of foreign subsidiaries pledged as security (as a percent)			65.00%
Floor interest rate			1.00%
Second Amendment \| Line of Credit \| Lender's base rate \| Covenant period one
Debt Instrument [Line Items]
Margin on reference rate (as a percent)			2.00%
Second Amendment \| Line of Credit \| Lender's base rate \| Minimum \| Covenant period two
Debt Instrument [Line Items]
Margin on reference rate (as a percent)			0.00%
Second Amendment \| Line of Credit \| Lender's base rate \| Maximum \| Covenant period two
Debt Instrument [Line Items]
Margin on reference rate (as a percent)			1.75%
Second Amendment \| Line of Credit \| LIBOR \| Covenant period one
Debt Instrument [Line Items]
Margin on reference rate (as a percent)			3.00%
Second Amendment \| Line of Credit \| LIBOR \| Minimum \| Covenant period two
Debt Instrument [Line Items]
Margin on reference rate (as a percent)			1.00%
Second Amendment \| Line of Credit \| LIBOR \| Maximum \| Covenant period two
Debt Instrument [Line Items]
Margin on reference rate (as a percent)			2.75%
Second Amendment \| Line of Credit \| Revolving credit loan
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 300,000,000
Second Amendment \| Line of Credit \| Revolving credit loan \| Covenant period one
Debt Instrument [Line Items]
Fees on unused portion of credit facilities (as a percent)			0.50%
Second Amendment \| Line of Credit \| Revolving credit loan \| Minimum \| Covenant period two
Debt Instrument [Line Items]
Fees on unused portion of credit facilities (as a percent)			0.20%
Second Amendment \| Line of Credit \| Revolving credit loan \| Maximum \| Covenant period two
Debt Instrument [Line Items]
Fees on unused portion of credit facilities (as a percent)			0.50%
Omnia debt acquired
Debt Instrument [Line Items]
Principal payment made						5,207,000
3.25% convertible senior notes \| Convertible debt
Debt Instrument [Line Items]
Convertible debt principal amount				168,000,000	168,000,000	0
Interest rate (as a percent)		3.25%
Convertible debt principal amount		$ 168,000,000
Conversion price (in dollars per share) \| $ / shares		$ 41.51
Conversion ratio \| Rate		2.40912%
Effective interest rate		9.36%
Proceeds from issuance of convertible debt		$ 162,977,000
Minimum percent of proceeds used to repay debt		50.00%
Net proceeds threshold		$ 100,000,000
Unamortized original issue discount		40,289,000		38,919,000	38,919,000	0
Debt issuance costs, net		4,365,000		4,246,000	4,246,000	0
Convertible debt		123,346,000		$ 124,835,000	124,835,000	$ 0
Equity component of convertible debt		29,184,000
Deferred income taxes		10,072,000
Equity component of debt issuance costs		1,377,000
Deferred income taxes (assets)		344,000
Cash interest					$ 1,168,000
3.25% convertible senior notes, over allotment option \| Convertible debt
Debt Instrument [Line Items]
Convertible debt principal amount		28,000,000
3.25% convertible senior notes, initial purchase \| Convertible debt
Debt Instrument [Line Items]
Convertible debt principal amount		$ 140,000,000