Employee Benefit Plans (Tables)

6 Months Ended

Nov. 30, 2023

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs

The following table sets forth the components of net periodic benefit cost for the periods indicated under the Company’s defined benefit pension plan of Scholastic Ltd., an indirect subsidiary of Scholastic Corporation located in the United Kingdom (the “UK Pension Plan”), and the postretirement benefits plan, consisting of certain healthcare and life insurance benefits provided by the Company to its eligible retired United States-based employees (the “US Postretirement Benefits”), for the periods indicated:

	UK Pension Plan				US Postretirement Benefits
	Three months ended				Three months ended
	November 30,				November 30,
	2023		2022		2023		2022
Components of net periodic benefit cost:
Interest cost	$	0.3	$	0.2	$	0.1	$	0.1
Expected return on assets		(0.3)		(0.3)		—		—
Amortization of prior service (credit) loss		0.0		0.0		(0.2)		(0.2)
Amortization of net actuarial (gain) loss		0.3		0.1		0.0		—
Total	$	0.3	$	0.0	$	(0.1)	$	(0.1)

	UK Pension Plan				US Postretirement Benefits
	Six months ended				Six months ended
	November 30,				November 30,
	2023		2022		2023		2022
Components of net periodic benefit cost:
Interest cost	$	0.7	$	0.5	$	0.2	$	0.2
Expected return on assets		(0.6)		(0.6)		—		—
Amortization of prior service (credit) loss		0.0		0.0		(0.4)		(0.4)
Amortization of net actuarial (gain) loss		0.6		0.2		0.0		—
Total	$	0.7	$	0.1	$	(0.2)	$	(0.2)