No definition available.

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

- Definition

Rate at which annual cash bonus payments are deferred by the entity.

+ References

No definition available.

+ Details

Name:	schl_DeferredRateForAnnualCashBonusPayment
Namespace Prefix:	schl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of non-qualified stock options shares to purchase under the plan.

+ References

No definition available.

+ Details

Name:	schl_NonQualifiedStockOptionsToPurchase
Namespace Prefix:	schl_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The value of non-qualified stock options shares to purchase under the plan.

+ References

No definition available.

+ Details

Name:	schl_NonQualifiedStockOptionsToPurchaseValue
Namespace Prefix:	schl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The percentage of the value of non-qualified shares to purchase under the plan.

+ References

No definition available.

+ Details

Name:	schl_NonQualifiedStockOptionsToPurchaseValuePortion
Namespace Prefix:	schl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Discount rate of common stock on closing price.

+ References

No definition available.

+ Details

Name:	schl_QuarterlyBasisDiscountRateOfCommonStockOnClosingPrice
Namespace Prefix:	schl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of restricted units.

+ References

No definition available.

+ Details

Name:	schl_ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockUnits
Namespace Prefix:	schl_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Increase in Number of Shares Available for Grant

+ References

No definition available.

+ Details

Name:	schl_SharebasedCompensationArrangementbySharebasedPaymentAwardIncreaseinNumberofSharesAvailableforGrant
Namespace Prefix:	schl_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Per Grantee

+ References

No definition available.

+ Details

Name:	schl_SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsOutstandingNumberPerGrantee
Namespace Prefix:	schl_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 14.F)
-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 14
-Section F

+ Details

Name:	us-gaap_AllocatedShareBasedCompensationExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Unrecognized cost of unvested share-based compensation awards.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

+ Details

Name:	us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.

+ 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 210.5-02.28)
-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 29
-Article 5

+ Details

Name:	us-gaap_PreferredStockSharesIssued
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)(2)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

+ References

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Net number of share options (or share units) granted during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of options outstanding, including both vested and non-vested options.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

+ References

No definition available.

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of shares issued during the period upon the conversion of units. An example of a convertible unit is an umbrella partnership real estate investment trust unit (UPREIT unit).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.28,29)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 29, 30, 31
-Article 5

+ Details

Name:	us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	schl_DefinedBenefitPlanAxis=schl_Amended2007DirectorsPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=schl_Plan2001Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=schl_Plan2011Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=schl_DirectorsPlan1997Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=schl_DirectorsPlan2007Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_EmployeeStockOptionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=schl_ClassAStockOptionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=schl_EmployeeStockPurchasePlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=schl_ManagementStockPurchasePlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=schl_StockUnitsAndRestrictedStockUnitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeStatementLocationAxis=us-gaap_SegmentDiscontinuedOperationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Capital Stock and Stock-Based Awards (Details) - USD ($)		1 Months Ended	12 Months Ended			49 Months Ended
	Sep. 21, 2015	Dec. 31, 2015	May 31, 2016	May 31, 2015	May 31, 2014	Sep. 30, 2011	Jul. 31, 2015	Sep. 24, 2014	Sep. 30, 2007
Capital Stock and Stock-Based Awards (Details) [Line Items]
Preferred stock issued			0	0
Options outstanding (Shares)			3,025,046	4,054,126
Options granted (Shares)			474,819
Weighted average exercise price of options granted (in Dollars per share)			$ 43.09
Stock option compensation cost not yet recognized			$ 3,300,000
Future period of stock option expense recognition			2 years
Stock-based compensation cost			$ 9,700,000	$ 11,300,000	$ 9,300,000
Amended 2007 Directors Plan [Member]
Capital Stock and Stock-Based Awards (Details) [Line Items]
Options granted (Shares)	12,033	1,464
Weighted average exercise price of options granted (in Dollars per share)	$ 43.56	$ 41.05
Restricted stock outstanding	6,748	818
Non qualified stock options to purchase (in Dollars)							$ 70,000
2001 Plan [Member]
Capital Stock and Stock-Based Awards (Details) [Line Items]
Options outstanding (Shares)			420,152
Plan 2011 [Member]
Capital Stock and Stock-Based Awards (Details) [Line Items]
Increase in number of shares available for grant								2,475,000
Options outstanding (Shares)			1,942,003
Options granted (Shares)			461,322
Weighted average exercise price of options granted (in Dollars per share)			$ 43.06
Common Stock Remaining Authorized Under EmployeeS tock Purchase Plan			1,909,399
1997 Directors’ Plan [Member]
Capital Stock and Stock-Based Awards (Details) [Line Items]
Options outstanding (Shares)			12,000
Options granted per grantee			6,000
2007 Directors’ Plan [Member]
Capital Stock and Stock-Based Awards (Details) [Line Items]
Options outstanding (Shares)			150,891
Common Stock Remaining Authorized Under EmployeeS tock Purchase Plan			241,841
Non-qualified stock options outstanding									3,000
Restricted stock outstanding						1,200
Employee Stock Option [Member] \| Amended 2007 Directors Plan [Member]
Capital Stock and Stock-Based Awards (Details) [Line Items]
Non qualified stock options to purchase, Portion							40.00%
Restricted Stock Units (RSUs) [Member]
Capital Stock and Stock-Based Awards (Details) [Line Items]
Stock option compensation cost not yet recognized			$ 2,100,000
Future period of stock option expense recognition			1 year 7 months 6 days
Common stock issued from conversion of RSUs			61,924
Restricted Stock Units (RSUs) [Member] \| Amended 2007 Directors Plan [Member]
Capital Stock and Stock-Based Awards (Details) [Line Items]
Non qualified stock options to purchase, Portion							60.00%
Class A Stock Options [Member]
Capital Stock and Stock-Based Awards (Details) [Line Items]
Options outstanding (Shares)			500,000
Common Stock Remaining Authorized Under EmployeeS tock Purchase Plan			0
Employee Stock Purchase Plan [Member]
Capital Stock and Stock-Based Awards (Details) [Line Items]
Common Stock Remaining Authorized Under EmployeeS tock Purchase Plan			563,268
Quarterly basis discount rate of common stock on closing price			15.00%
Management Stock Purchase Plan [Member]
Capital Stock and Stock-Based Awards (Details) [Line Items]
Common Stock Remaining Authorized Under EmployeeS tock Purchase Plan			336,429
Stock option compensation cost not yet recognized			$ 100,000
Future period of stock option expense recognition			1 year 3 months 18 days
Deferred rate for annual cash bonus payment			100.00%
Quarterly basis discount rate of common stock on closing price			25.00%
Fair value of shares vested				3,300,000	5,000,000
Stock Units And Restricted Stock Units [Member]
Capital Stock and Stock-Based Awards (Details) [Line Items]
Fair value of shares vested			$ 3,400,000
Discontinued Operations [Member]
Capital Stock and Stock-Based Awards (Details) [Line Items]
Stock-based compensation cost				$ 2,500,000	$ 900,000