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Leases - Narrative (Details) - 12 months ended May 31, 2021 $ in Millions | USD ($) bookFair | fairs
--- | --- | ---
Lessee, Lease, Description [Line Items] |  |
Asset impairment expense | $ 2.6 |
Number of book fair closed | 13 | 13
Number of book fairs total | 54 | 54
Operating Right Of Use Asset |  |
Lessee, Lease, Description [Line Items] |  |
Asset impairment expense | $ 9.6 |

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- 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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-3 + Details
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