Goodwill and Other Intangibles (Tables)

12 Months Ended

May 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of goodwill

The following table summarizes the activity in Goodwill for the fiscal years ended May 31: 

	2018			2017
Gross beginning balance	$	158.5		$	155.8
Accumulated impairment	(39.6		)	(39.6		)
Beginning balance	$	118.9		$	116.2
Additions	—			2.8
Foreign currency translation	0.2			(0.1		)
Other	0.1			—
Ending balance	$	119.2		$	118.9

Schedule of finite-lived intangible assets

The following table summarizes Other intangibles for the fiscal years ended May 31: 

	2018			2017
Other intangibles subject to amortization - beginning balance	$	9.0		$	4.7
Additions	3.3			7.0
Amortization expense	(2.1		)	(2.5		)
Foreign currency translation	(0.1		)	(0.2		)
Total other intangibles subject to amortization, net of accumulated amortization of $24.1 and $22.0, respectively	$	10.1		$	9.0
Total other intangibles not subject to amortization	2.1			2.1
Total other intangibles	$	12.2		$	11.1

Schedule of future amortization of finite-lived intangible assets

The following table reflects the estimated amortization expense for intangibles for the next five fiscal years ending May 31: 

2019	$	2.6
2020	2.6
2021	2.3
2022	1.9
2023	0.6