Goodwill and Other Intangibles (Tables)

9 Months Ended

Feb. 28, 2021

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 28, 2021		May 31, 2020		February 29, 2020
Gross beginning balance	$	164.5	$	164.8	$	164.8
Accumulated impairment		(39.6)		(39.6)		(39.6)
Beginning balance	$	124.9	$	125.2	$	125.2
Additions		—		—		—
Foreign currency translation		1.1		(0.3)		0.1
Ending balance	$	126.0	$	124.9	$	125.3

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 28, 2021		May 31, 2020		February 29, 2020
Beginning balance - Other intangibles subject to amortization	$	10.5	$	12.2	$	12.2
Additions		—		1.6		1.6
Adjustments		(0.5)		—		—
Amortization expense		(1.7)		(3.2)		(2.4)
Foreign currency translation		0.5		(0.1)		0.1
Total other intangibles subject to amortization, net of accumulated amortization of $31.8, $30.1 and $29.3, respectively	$	8.8	$	10.5	$	11.5
Total other intangibles not subject to amortization	$	2.1	$	2.1	$	2.1
Total other intangibles	$	10.9	$	12.6	$	13.6