CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Feb. 28, 2022	Feb. 28, 2021	Feb. 28, 2022	Feb. 28, 2021
Income Statement [Abstract]
Revenues	$ 344.5	$ 277.5	$ 1,128.5	$ 898.9
Operating costs and expenses:
Cost of goods sold	169.6	135.9	540.9	440.6
Selling, general and administrative expenses	180.8	140.2	512.7	433.8
Depreciation and amortization	13.6	14.7	43.0	46.0
Asset impairments and write downs	0.0	10.9	0.0	10.9
Total operating costs and expenses	364.0	301.7	1,096.6	931.3
Operating income (loss)	(19.5)	(24.2)	31.9	(32.4)
Interest income (expense), net	(0.4)	(1.7)	(2.2)	(4.1)
Other components of net periodic benefit (cost)	0.1	0.1	0.1	(0.1)
(Gain) loss on sale of assets	0.0	3.8	6.2	10.4
Earnings (loss) before income taxes	(19.8)	(22.0)	36.0	(26.2)
Provision (benefit) for income taxes	(4.7)	(8.0)	7.1	(7.6)
Net income (loss)	(15.1)	(14.0)	28.9	(18.6)
Less: Net income (loss) attributable to noncontrolling interest	0.2	(0.1)	0.1	0.0
Net income (loss) attributable to Scholastic Corporation	$ (15.3)	$ (13.9)	$ 28.8	$ (18.6)
Basic and diluted earnings (loss) per share of Class A and Common Stock
Basic (in Dollars per share)	$ (0.44)	$ (0.41)	$ 0.83	$ (0.54)
Diluted (in Dollars per share)	$ (0.44)	$ (0.41)	$ 0.80	$ (0.54)