CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Nov. 30, 2022	Nov. 30, 2021	Nov. 30, 2022	Nov. 30, 2021
Income Statement [Abstract]
Revenues	$ 587.9	$ 524.2	$ 850.8	$ 784.0
Operating costs and expenses:
Cost of goods sold	260.4	238.0	404.9	371.3
Selling, general and administrative expenses	213.6	188.3	376.4	331.9
Depreciation and amortization	13.8	14.5	27.5	29.4
Total operating costs and expenses	487.8	440.8	808.8	732.6
Operating income (loss)	100.1	83.4	42.0	51.4
Interest income (expense), net	0.7	(0.5)	0.9	(1.8)
Other components of net periodic benefit (cost)	0.1	0.0	0.1	0.0
(Gain) loss on sale of assets	0.0	6.2	0.0	6.2
Earnings (loss) before income taxes	100.9	89.1	43.0	55.8
Provision (benefit) for income taxes	25.5	20.7	13.0	11.8
Net income (loss)	75.4	68.4	30.0	44.0
Less: Net income (loss) attributable to noncontrolling interest	0.1	0.1	0.2	(0.1)
Net income (loss) attributable to Scholastic Corporation	$ 75.3	$ 68.3	$ 29.8	$ 44.1
Basic and diluted earnings (loss) per share of Class A and Common Stock
Basic (in Dollars per share)	$ 2.17	$ 1.97	$ 0.86	$ 1.27
Diluted (in Dollars per share)	$ 2.12	$ 1.91	$ 0.84	$ 1.24