Goodwill and Other Intangibles (Tables)

12 Months Ended

May 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of goodwill

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

	2017			2016
Gross beginning balance	$	155.8		$	155.9
Accumulated impairment	(39.6		)	(39.6		)
Beginning balance	116.2			116.3
Additions	2.8			—
Foreign currency translation	(0.1		)	(0.1		)
Gross ending balance	158.5			155.8
Accumulated impairment	(39.6		)	(39.6		)
Ending balance	$	118.9		$	116.2

Schedule of finite-lived intangible assets

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

	2017			2016
Other intangibles subject to amortization - beginning balance	$	4.7		$	4.7
Additions	7.0			2.4
Amortization expense	(2.5		)	(2.2		)
Foreign currency translation	(0.2		)	(0.2		)
Total other intangibles subject to amortization, net of accumulated amortization of $22.0 and $19.5, respectively	$	9.0		$	4.7
Total other intangibles not subject to amortization	$	2.1		$	2.1
Total other intangibles	$	11.1		$	6.8

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: 

2018	$	2.0
2019	1.9
2020	1.9
2021	1.6
2022	1.4