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Goodwill and Other Intangibles (Tables) | 12 Months Ended
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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 |

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