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Accumulated Other Comprehensive Income (Loss) (Tables) | 12 Months Ended
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May 31, 2017
Equity [Abstract] |
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 fiscal years ended May 31:
| 2017 |  | 2016 |  | 2015
| Pension Plans |  | Post - Retirement Benefits |  | Pension Plans |  | Post - Retirement Benefits |  | Pension Plans |  | Post - Retirement Benefits
Service cost | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 0.0 |  |  | $ | — |  |  | $ | 0.0 |
Net amortization and deferrals | — |  |  | — |  |  | — |  |  | (0.1 | ) |  | — |  |  | (0.2 | )
Lump sum settlement charge | — |  |  | — |  |  | — |  |  | — |  |  | 4.3 |  |  | — |
Amortization of net actuarial loss | 1.7 |  |  | 0.4 |  |  | 1.7 |  |  | 2.8 |  |  | 1.4 |  |  | 1.3 |
Tax benefit | (0.4 | ) |  | (0.1 | ) |  | (0.3 | ) |  | (1.1 | ) |  | (2.0 | ) |  | (0.4 | )
Amounts reclassified from Accumulated other comprehensive income (loss) | $ | 1.3 |  |  | $ | 0.3 |  |  | $ | 1.4 |  |  | $ | 1.6 |  |  | $ | 3.7 |  |  | $ | 0.7 |
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:
| Foreign currency translation adjustments |  | Pension Plans |  | Post - Retirement Benefits |  | Total
Balance at May 31, 2015(1) | $ | (31.9 | ) |  | $ | (38.0 | ) |  | $ | (7.1 | ) |  | $ | (77.0 | )
Other comprehensive income (loss) before reclassifications | (8.1 | ) |  | (2.8 | ) |  | $ | (1.8 | ) |  | $ | (12.7 | )
Less: amount reclassified from Accumulated other comprehensive income (loss) (net of taxes) |  |  |  |  |  |  |
Lump Sum Settlement charge | — |  |  | — |  |  | — |  |  | — |
Amortization of net actuarial loss | — |  |  | 1.4 |  |  | 1.6 |  |  | 3.0 |
Net prior service credit | — |  |  | — |  |  | (0.0 | ) |  | (0.0 | )
Other comprehensive income (loss) | (8.1 | ) |  | (1.4 | ) |  | (0.2 | ) |  | (9.7 | )
Balance at May 31, 2016(1) | $ | (40.0 | ) |  | $ | (39.4 | ) |  | $ | (7.3 | ) |  | $ | (86.7 | )
Other comprehensive income (loss) before reclassifications | $ | (5.3 | ) |  | $ | (8.8 | ) |  | $ | 5.0 |  |  | $ | (9.1 | )
Less: amount reclassified from Accumulated other comprehensive income (loss) (net of taxes) |  |  |  |  |  |  |
Lump Sum Settlement charge | — |  |  | — |  |  | — |  |  | — |
Amortization of net actuarial loss | — |  |  | 1.3 |  |  | 0.3 |  |  | 1.6 |
Net prior service credit | — |  |  | — |  |  | — |  |  | — |
Other comprehensive income (loss) | (5.3 | ) |  | (7.5 | ) |  | 5.3 |  |  | (7.5 | )
Balance at May 31, 2017 (1) | $ | (45.3 | ) |  | $ | (46.9 | ) |  | $ | (2.0 | ) |  | $ | (94.2 | )
(1) Obligations under Pension Plans and Post-Retirement Benefits are reported net of taxes of $22.0, $22.4 and $20.6 at May 31, 2017, 2016 and 2015, respectively.

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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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