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Accumulated Other Comprehensive Income (Loss) (Tables) | 3 Months Ended
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Aug. 31, 2018
Equity [Abstract] |
Schedule of Accumulated Other Comprehensive Income (Loss) | The following tables summarize the activity in Accumulated other comprehensive income (loss), net of tax, by component for the periods indicated:
| Three months ended August 31, 2018
| Foreign currency translation adjustments |  | Retirement benefit plans |  | Total
Beginning balance at June 1, 2018 | $ | (41.9 | ) |  | $ | (13.8 | ) |  | $ | (55.7 | )
Other comprehensive income (loss) before reclassifications | (3.1 | ) |  | — |  |  | (3.1 | )
Less amount reclassified from Accumulated other comprehensive income (loss): |  |  |  |  |  |
Amortization (net of tax of $0.0) | — |  |  | 0.2 |  |  | 0.2 |
Other comprehensive income (loss) | (3.1 | ) |  | 0.2 |  |  | (2.9 | )
Ending balance at August 31, 2018 | $ | (45.0 | ) |  | $ | (13.6 | ) |  | $ | (58.6 | )
| Three months ended August 31, 2017
| Foreign currency translation adjustments |  | Retirement benefit plans |  | Total
Beginning balance at June 1, 2017 | $ | (45.3 | ) |  | $ | (48.9 | ) |  | $ | (94.2 | )
Other comprehensive income (loss) before reclassifications | 3.7 |  |  | — |  |  | 3.7 |
Less amount reclassified from Accumulated other comprehensive income (loss): |  |  |  |  |  |
Amortization (net of tax of $0.1) | — |  |  | 0.5 |  |  | 0.5 |
Other comprehensive income (loss) | 3.7 |  |  | 0.5 |  |  | 4.2 |
Ending balance at August 31, 2017 | $ | (41.6 | ) |  | $ | (48.4 | ) |  | $ | (90.0 | )
Reclassification out of Accumulated Other Comprehensive Income | The following table presents the impact on earnings of reclassifications out of Accumulated other comprehensive income (loss) for the periods indicated:
| Three months ended August 31, |  | Affected line items in the condensed consolidated statements of operations
| 2018 |  | 2017 |
Employee benefit plans: |  |  |  |  |
Amortization of unrecognized gain (loss) | $ | 0.2 |  |  | $ | 0.6 |  |  | Other components of net periodic benefit (cost)
Less: Tax effect | — |  |  | (0.1 | ) |  | Provision (benefit) for income taxes
Total cost, net of tax | $ | 0.2 |  |  | $ | 0.5 |  |  |

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- Definition Tabular disclosure of information about items reclassified out of accumulated other comprehensive income (loss). + References No definition available. + Details
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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669686-108580 + Details
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