Credit lines available

No definition available.

Name:	schl_CreditLinesAvailable
Namespace Prefix:	schl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	schl_DebtDetailsLineItems
Namespace Prefix:	schl_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- 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:	schl_LineOfCreditFacilityFeePercentage
Namespace Prefix:	schl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Standby Letters of Credit

+ References

No definition available.

+ Details

Name:	schl_StandbyLettersofCredit
Namespace Prefix:	schl_
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

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the aggregate of total long-term debt, including current maturities and short-term debt.

+ References

No definition available.

+ Details

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

- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 13

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(h)(2))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph h

-Subparagraph 2

-Article 4

+ Details

Name:	us-gaap_EffectiveIncomeTaxRateContinuingOperations
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount borrowed under the credit facility as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

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

- Definition

Average amount borrowed under the credit facility during the period.

+ References

No definition available.

+ Details

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

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

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

- Definition

Date the credit facility terminates, in CCYY-MM-DD format.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityExpirationDate1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Period remaining on line of credit facility before it terminates, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityExpirationPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

+ Details

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

- Details

Name:	us-gaap_CreditFacilityAxis=schl_LoanAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=schl_LoanAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShortTermDebtTypeAxis=us-gaap_UnsecuredDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Debt (Details) (USD $)	3 Months Ended	6 Months Ended
Debt (Details) (USD $)	Nov. 30, 2014	Nov. 30, 2014	May 31, 2014	Nov. 30, 2013
Debt (Details) [Line Items]
Effective Income Tax Rate Reconciliation, Percent	39.00%	40.40%
Debt, Long-term and Short-term, Combined Amount	$ 104,200,000	$ 104,200,000	$ 135,800,000	$ 9,600,000
Loan Agreement
Debt (Details) [Line Items]
Line of Credit Facility, Current Borrowing Capacity	425,000,000	425,000,000
Line of Credit Facility, Expiration Date		Dec. 05, 2017
Line Of Credit Facility Fee Percentage	0.20%	0.20%
Line of Credit Facility, Amount Outstanding	95,000,000	95,000,000
Line of Credit Facility, Average Outstanding Amount		25.0
StandbyLettersofCredit	0	0
Minimum \| Loan Agreement
Debt (Details) [Line Items]
Line Of Credit Facility Fee Percentage	0.20%	0.20%
Maximum \| Loan Agreement
Debt (Details) [Line Items]
Line Of Credit Facility Fee Percentage	0.40%	0.40%
Loan Agreement \| Federal Funds Rate [Member]
Debt (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate		0.50%
Loan Agreement \| Eurodollar [Member]
Debt (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate		1.00%
Loan Agreement \| Eurodollar [Member] \| Minimum
Debt (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate		0.18%
Loan Agreement \| Base Rate [Member] \| Minimum
Debt (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate		0.18%
Loan Agreement \| Base Rate [Member] \| Maximum
Debt (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate		0.60%
Loan Agreement \| London Interbank Offered Rate (LIBOR) [Member] \| Minimum
Debt (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate		1.18%
Loan Agreement \| London Interbank Offered Rate (LIBOR) [Member] \| Maximum
Debt (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate		1.60%
Unsecured Debt [Member] \| Domestic Line of Credit [Member]
Debt (Details) [Line Items]
Line of Credit Facility, Current Borrowing Capacity	25.0	25.0
Line of Credit Facility, Amount Outstanding	0	0	0	0
Line of Credit Facility, Expiration Period		365 days
StandbyLettersofCredit	4.9	4.9
Line of Credit Facility, Remaining Borrowing Capacity	20.1	20.1
Unsecured Debt [Member] \| Foreign Line of Credit [Member]
Debt (Details) [Line Items]
Line of Credit Facility, Current Borrowing Capacity	32.9	32.9
Credit Lines Available	0	0
Line of Credit Facility, Expiration Period		364 days
Unsecured Debt [Member] \| Foreign Line of Credit [Member] \| Line of Credit [Member]
Debt (Details) [Line Items]
Debt, Long-term and Short-term, Combined Amount	$ 0	$ 0	$ 0	$ 0