CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Nov. 30, 2024	Nov. 30, 2023	Nov. 30, 2024	Nov. 30, 2023
Income Statement [Abstract]
Revenues	$ 544.6	$ 562.6	$ 781.8	$ 791.1
Operating costs and expenses:
Cost of goods sold	228.6	234.1	356.9	364.1
Selling, general and administrative expenses	224.9	213.1	407.0	397.3
Depreciation and amortization	16.3	14.1	31.6	27.5
Asset impairments and write downs	0.1	0.0	0.1	0.0
Total operating costs and expenses	469.9	461.3	795.6	788.9
Operating income (loss)	74.7	101.3	(13.8)	2.2
Interest income (expense), net	(4.4)	0.4	(7.4)	1.8
Other components of net periodic benefit (cost)	(0.3)	(0.2)	(0.6)	(0.5)
Earnings (loss) before income taxes	70.0	101.5	(21.8)	3.5
Provision (benefit) for income taxes	21.2	24.6	(8.1)	0.8
Net income (loss)	$ 48.8	$ 76.9	(13.7)	2.7
Net income (loss) attributable to Scholastic Corporation			$ (13.7)	$ 2.7
Basic and diluted earnings (loss) per share of Class A and Common Stock
Basic (in Dollars per share)	$ 1.73	$ 2.51	$ (0.48)	$ 0.09
Diluted (in Dollars per share)	$ 1.71	$ 2.45	$ (0.48)	$ 0.09