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Commitments and Contingencies (Details) - Schedule for composition of capital leased assets | 12 Months Ended
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May. 31, 2015
Minimum [Member] |
Capital Leased Assets [Line Items] |
Capital lease period | 1 year
Maximum [Member] |
Capital Leased Assets [Line Items] |
Capital lease period | 10 years

X
- Definition Lessee Leasing Arrangements, Capital Leases, Term of Contract + References No definition available. + Details
Name: | schl_LesseeLeasingArrangementsCapitalLeasesTermofContract
Namespace Prefix: | schl_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_CapitalLeasedAssetsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

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