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Accumulated Other Comprehensive Income (Loss) (Tables) | 3 Months Ended
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Aug. 31, 2017
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, 2017
| Foreign currency translation adjustments |  | Retirement benefit plans |  | Total
Beginning balance | $ | (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) | — |  |  | 0.5 |  |  | 0.5 |
Other comprehensive income (loss) | 3.7 |  |  | 0.5 |  |  | 4.2 |
Ending balance | $ | (41.6 | ) |  | $ | (48.4 | ) |  | $ | (90.0 | )
| Three months ended August 31, 2016
| Foreign currency translation adjustments |  | Retirement benefit plans |  | Total
Beginning balance | $ | (40.0 | ) |  | $ | (46.7 | ) |  | $ | (86.7 | )
Other comprehensive income (loss) before reclassifications | (1.9 | ) |  | — |  |  | (1.9 | )
Less: amount reclassified from Accumulated other comprehensive income (loss) | — |  |  | 0.7 |  |  | 0.7 |
Other comprehensive income (loss) | (1.9 | ) |  | 0.7 |  |  | (1.2 | )
Ending balance | $ | (41.9 | ) |  | $ | (46.0 | ) |  | $ | (87.9 | )
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 | Affected line items in the condensed consolidated statements of operations
| August 31, |  | August 31,
| 2017 |  | 2016
Employee benefit plans: |  |  |  |
Amortization of unrecognized gain (loss) included in net periodic benefit (cost) | $ | 0.6 |  |  | $ | 1.0 |  | Other components of net periodic benefit (cost)
Less: Tax effect | (0.1 | ) |  | (0.3 | ) | Income tax expense (benefit)
Total expense, net of tax | $ | 0.5 |  |  | $ | 0.7 |  |

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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669686-108580 + Details
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