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Goodwill and Other Intangibles (Tables) | 12 Months Ended
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May. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of goodwill | The following table summarizes the activity in Goodwill for the fiscal years ended May 31:
| 2015 |  | 2014
Gross beginning balance | $ | 156.0 |  |  | $ | 156.0 |
Accumulated impairment | (34.2 | ) |  | (20.8 | )
Beginning balance | 121.8 |  |  | 135.2 |
Impairment charge | (5.4 | ) |  | (13.4 | )
Foreign currency translation | (0.1 | ) |  | 0.0 |
Gross ending balance | 155.9 |  |  | 156.0 |
Accumulated impairment | (39.6 | ) |  | (34.2 | )
Ending balance | $ | 116.3 |  |  | $ | 121.8 |
Schedule of finite-lived intangible assets | The following table summarizes Other intangibles as of May 31:
| 2015 |  | 2014
Other intangibles subject to amortization - beginning balance | $ | 5.8 |  |  | $ | 8.0 |
Additions due to acquisition | 0.8 |  |  | — |
Amortization expense | (1.9 | ) |  | (2.0 | )
Other | — |  |  | (0.2 | )
Total other intangibles subject to amortization, net accumulated amortization of $17.3 and $15.4, respectively | $ | 4.7 |  |  | $ | 5.8 |
Total other intangibles not subject to amortization | $ | 2.1 |  |  | $ | 2.2 |
Total other intangibles | $ | 6.8 |  |  | $ | 8.0 |
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:
2016 | $ | 1.9 |
2017 | 1.9 |
2018 | 0.2 |
2019 | 0.2 |
2020 | 0.1 |

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275 + Details
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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 + Details
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