Goodwill and Other Intangibles (Tables)

9 Months Ended

Feb. 29, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Activity in Goodwill for the Periods Indicated

The following table summarizes the activity in Goodwill for the periods indicated: 

	February 29, 2024		May 31, 2023		February 28, 2023
Gross beginning balance	$	172.3	$	164.9	$	164.9
Accumulated impairment		(39.6)		(39.6)		(39.6)
Beginning balance	$	132.7	$	125.3	$	125.3
Additions		—		7.6		7.0
Foreign currency translation		0.1		(0.2)		(0.4)
Ending balance	$	132.8	$	132.7	$	131.9

Summary of Activity in Total Other Intangibles for the Periods Indicated

The following table summarizes the activity in other intangibles included in Other assets and deferred charges on the Company’s Financial Statements for the periods indicated:

	February 29, 2024		May 31, 2023		February 28, 2023
Beginning balance - Other intangibles subject to amortization	$	7.8	$	6.0	$	6.0
Additions		6.0		4.1		4.1
Amortization expense		(1.9)		(2.2)		(1.7)
Foreign currency translation		0.0		(0.1)		(0.1)
Total other intangibles subject to amortization, net of accumulated amortization of $38.4, $36.5 and $36.0, respectively	$	11.9	$	7.8	$	8.3
Total other intangibles not subject to amortization	$	2.1	$	2.1	$	2.1
Total other intangibles	$	14.0	$	9.9	$	10.4