Restructuring - Additional Information (Detail) - MAP to Growth $ in Millions	6 Months Ended
	Nov. 30, 2021 USD ($)
Restructuring Cost And Reserve [Line Items]
Increase in current total expected costs	$ 1.9
Severance and Benefit Charges
Restructuring Cost And Reserve [Line Items]
Increase in current total expected costs	1.2
Facility Closure and Other Related Costs
Restructuring Cost And Reserve [Line Items]
Increase in current total expected costs	$ 0.7