Document And Entity Information	9 Months Ended
	Feb. 28, 2019 shares
Document Information [Line Items]
Entity Registrant Name	SCHOLASTIC CORP
Document Type	10-Q
Current Fiscal Year End Date	--05-31
Amendment Flag	false
Entity Central Index Key	0000866729
Entity Current Reporting Status	Yes
Entity Emerging Growth Company	false
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Document Period End Date	Feb. 28, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q3
Common Class A
Document Information [Line Items]
Entity Common Stock, Shares Outstanding	1,656,200
Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding	33,556,817