Debt Covenant, Maximum Lender Credit Exposure

No definition available.

Name:	jwa_DebtCovenantMaximumLenderCreditExposure
Namespace Prefix:	jwa_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Margin rate over reference rate used to calculate the lenders base rate.

+ References

No definition available.

+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The minimum incremental amount by which the entity may request an optional increase to the maximum borrowing capacity under the revolving credit facility.

+ References

No definition available.

+ Details

Name:	jwa_MinimumIncrementsInWhichOptionalCreditLimitIncreasesMayBeRequested
Namespace Prefix:	jwa_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

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

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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The average effective interest rate during the reporting period.

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Weighted average interest rate of debt outstanding.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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+ Details

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of increase (decrease) of the credit facility.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- 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.

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+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

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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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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Balance Type:
Period Type:

- Details

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Balance Type:
Period Type:

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Balance Type:
Period Type:

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Debt and Available Credit Facilities - Narrative (Details) - USD ($)		3 Months Ended
	May 15, 2026	Jul. 31, 2026	Jul. 31, 2025	Apr. 30, 2026
Line of Credit Facility [Line Items]
Letters of credit outstanding amount		$ 400,000
Term loan A - Amended and Restated CA \| Amended and Restated RCA
Line of Credit Facility [Line Items]
Credit commitments, principal amount	$ 1,115,000,000
Debt issuance costs, line of credit arrangements		500,000
Term loan A - Amended and Restated CA \| Amended and Restated RCA \| Syndicate Bank Group led by Bank of America
Line of Credit Facility [Line Items]
Debt covenant, maximum lender credit exposure	2,000,000,000
Value of minimum increments	$ 50,000,000
Term loan A - Amended and Restated CA \| Amended and Restated RCA \| Syndicate Bank Group led by Bank of America \| Base Rate
Line of Credit Facility [Line Items]
Margin rate over reference rate used in determining base rate (as a percent)	0.50%
Term loan A - Amended and Restated CA \| Amended and Restated RCA \| Syndicate Bank Group led by Bank of America \| Daily Secured Overnight Financing Rate (SOFR)
Line of Credit Facility [Line Items]
Margin rate over reference rate used in determining base rate (as a percent)	1.00%
Term loan A - Amended and Restated CA \| Amended and Restated RCA \| Minimum \| Secured Overnight Financing Rate (SOFR)
Line of Credit Facility [Line Items]
Margin rate (as a percent)	0.10%
Term loan A - Amended and Restated CA \| Amended and Restated RCA \| Minimum \| Syndicate Bank Group led by Bank of America
Line of Credit Facility [Line Items]
Line of credit facility, Commitment fee percentage (as a percent)	0.15%
Term loan A - Amended and Restated CA \| Amended and Restated RCA \| Minimum \| Syndicate Bank Group led by Bank of America \| SOFR, SONIA, and EURIBOR-Based Rates
Line of Credit Facility [Line Items]
Applicable margin (as a percent)	0.98%
Term loan A - Amended and Restated CA \| Amended and Restated RCA \| Minimum \| Syndicate Bank Group led by Bank of America \| Base Rate
Line of Credit Facility [Line Items]
Applicable margin (as a percent)	0.00%
Term loan A - Amended and Restated CA \| Amended and Restated RCA \| Maximum \| Secured Overnight Financing Rate (SOFR)
Line of Credit Facility [Line Items]
Margin rate (as a percent)	0.25%
Term loan A - Amended and Restated CA \| Amended and Restated RCA \| Maximum \| Syndicate Bank Group led by Bank of America
Line of Credit Facility [Line Items]
Line of credit facility, Commitment fee percentage (as a percent)	0.25%
Term loan A - Amended and Restated CA \| Amended and Restated RCA \| Maximum \| Syndicate Bank Group led by Bank of America \| SOFR, SONIA, and EURIBOR-Based Rates
Line of Credit Facility [Line Items]
Applicable margin (as a percent)	1.50%
Term loan A - Amended and Restated CA \| Amended and Restated RCA \| Maximum \| Syndicate Bank Group led by Bank of America \| Federal Funds Effective Rate
Line of Credit Facility [Line Items]
Applicable margin (as a percent)	0.50%
Term Loan A Facility \| Amended and Restated RCA
Line of Credit Facility [Line Items]
Debt instrument, face amount	$ 500,000,000.0
Line of credit facility, increase (decrease), net	$ 300,000,000.0
Line of Credit
Line of Credit Facility [Line Items]
Credit commitments, principal amount		1,588,100,000
Line of credit facility, remaining borrowing capacity		$ 296,100,000
Average interest rates on total debt outstanding (as a percent)		5.30%	5.49%
Weighted average interest rates (as a percent)		5.24%		5.48%
Line of Credit \| Other Credit Facilities
Line of Credit Facility [Line Items]
Credit commitments, principal amount		$ 1,000,000.0
Outstanding borrowings under revolving credit facilities		$ 0		$ 0