CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Feb. 28, 2025	Feb. 29, 2024	Feb. 28, 2025	Feb. 29, 2024
Income Statement [Abstract]
Revenues	$ 335.4	$ 323.7	$ 1,117.2	$ 1,114.8
Operating costs and expenses:
Cost of goods sold	154.6	148.7	511.5	512.8
Selling, general and administrative expenses	187.5	194.8	594.5	592.1
Depreciation and amortization	16.9	14.6	48.5	42.1
Asset impairments and write downs	0.3	0.5	0.4	0.5
Total operating costs and expenses	359.3	358.6	1,154.9	1,147.5
Operating income (loss)	(23.9)	(34.9)	(37.7)	(32.7)
Interest income (expense), net	(4.3)	0.6	(11.7)	2.4
Other components of net periodic benefit (cost)	(0.2)	(0.3)	(0.8)	(0.8)
Earnings (loss) before income taxes	(28.4)	(34.6)	(50.2)	(31.1)
Provision (benefit) for income taxes	(24.8)	(8.1)	(32.9)	(7.3)
Net income (loss)	$ (3.6)	$ (26.5)	(17.3)	(23.8)
Net income (loss) attributable to Scholastic Corporation			$ (17.3)	$ (23.8)
Basic and diluted earnings (loss) per share of Class A and Common Stock
Basic (in Dollars per share)	$ (0.13)	$ (0.91)	$ (0.61)	$ (0.80)
Diluted (in Dollars per share)	$ (0.13)	$ (0.91)	$ (0.61)	$ (0.80)