Line of credit facility base rate advances.

No definition available.

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- Definition

Line of credit facility Eurodollar rate advances.

+ References

No definition available.

+ Details

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- 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

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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

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

- Definition

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

+ 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 210.5-02.22(a)(1))

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

+ Details

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Balance Type:	na
Period Type:	instant

- 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.

+ References

No definition available.

+ Details

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

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
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

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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:	num:percentItemType
Balance Type:	na
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.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.16)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.16)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 20, 22

-Article 5

+ Details

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

- 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

+ Details

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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

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

+ Details

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

- Definition

Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions).

+ 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

+ Details

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Data Type:	xbrli:stringItemType
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

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

+ Details

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

- Details

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- Details

Name:	us-gaap_ShortTermDebtTypeAxis=us-gaap_SecuredDebtMember
Namespace Prefix:
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Balance Type:
Period Type:

- Details

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Data Type:	na
Balance Type:
Period Type:

- Details

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Period Type:

- Details

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- Details

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- Details

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- Details

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- Details

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Debt (Details) - USD ($)	3 Months Ended	12 Months Ended
Debt (Details) - USD ($)	May. 31, 2014	May. 31, 2015	May. 31, 2013
Debt Instrument [Line Items]
Borrowings outstanding	$ 135,800,000	$ 6,000,000
Interest rate	0.00%	0.00%	5.00%
Unsecured Debt [Member]
Debt Instrument [Line Items]
Borrowing capacity		$ 25,000,000
Amount outstanding	$ 10,000,000	0
Line of Credit Facility, Remaining Borrowing Capacity		$ 20.1
Weighted average interest rate		1.20%
Secured Debt [Member]
Debt Instrument [Line Items]
Borrowing capacity		$ 24,300,000
Loan Agreement [Member]
Debt Instrument [Line Items]
Borrowing capacity		$ 425,000,000.0
Expiration date		Dec. 05, 2017
Spread on base rate advances		0.18%
Spread on Eurodollar rate advances		1.18%
Facility fee		0.20%
Amount outstanding	120,000,000.0	$ 0
Standby letters of credit		400,000
Standby Letter Of Credit [Member]
Debt Instrument [Line Items]
Standby letters of credit		5,300,000
Line of Credit [Member]
Debt Instrument [Line Items]
Standby letters of credit		4,900,000
Borrowings outstanding	$ 15,800,000	6,000,000
Line of Credit [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Remaining Borrowing Capacity		$ 18.3
Weighted average interest rate	4.30%	3.80%
Borrowings outstanding	$ 5,800,000	$ 6,000,000
Minimum [Member] \| Loan Agreement [Member]
Debt Instrument [Line Items]
Facility fee		0.20%
Maximum [Member] \| Unsecured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Term	365 days
Maximum [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Term		364 days
Maximum [Member] \| Loan Agreement [Member]
Debt Instrument [Line Items]
Facility fee		0.40%
Federal Funds Rate [Member] \| Loan Agreement [Member]
Debt Instrument [Line Items]
Variable rate		0.50%
Eurodollar [Member]
Debt Instrument [Line Items]
Interest rate description		Eurodollar Rate for a one month interest period plus 1% plus, in each case, an applicable spread ranging from 0.18% to 0.60%
Eurodollar [Member] \| Loan Agreement [Member]
Debt Instrument [Line Items]
Variable rate		1.00%
Base Rate [Member] \| Minimum [Member] \| Loan Agreement [Member]
Debt Instrument [Line Items]
Variable rate		0.18%
Base Rate [Member] \| Maximum [Member] \| Loan Agreement [Member]
Debt Instrument [Line Items]
Variable rate		0.60%
London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Interest rate description		London interbank offered rate (LIBOR) plus an applicable spread ranging from 1.18% to 1.60%
London Interbank Offered Rate (LIBOR) [Member] \| Minimum [Member] \| Loan Agreement [Member]
Debt Instrument [Line Items]
Variable rate		1.18%
London Interbank Offered Rate (LIBOR) [Member] \| Maximum [Member] \| Loan Agreement [Member]
Debt Instrument [Line Items]
Variable rate		1.60%