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Reclassifications out of Accumulated Other Comprehensive Loss | 12 Months Ended
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Sep. 30, 2020
Reclassifications out of Accumulated Other Comprehensive Loss |
Reclassifications out of Accumulated Other Comprehensive Loss | 17. Reclassifications out of Accumulated Other Comprehensive Loss The accumulated balances and reporting period activities for the years ended September 30, 2020, 2019 and 2018 related to reclassifications out of accumulated other comprehensive loss are summarized as follows (in millions): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Foreign | ​ | ​ | ​ | Accumulated
​ | ​ | Pension | ​ | Currency | ​ | Loss on | ​ | Other
​ | ​ | Related | ​ | Translation | ​ | Derivative | ​ | Comprehensive
​ |  | Adjustments |  | Adjustments |  | Instruments |  | Loss
Balances at September 30, 2018 | ​ | $ | (202.3) | ​ | $ | (502.2) | ​ | $ | 1.2 | ​ | $ | (703.3)
Other comprehensive income (loss) before reclassification | ​ | ​ | (107.2) | ​ | ​ | (46.5) | ​ | ​ | (17.2) | ​ | ​ | (170.9)
Amounts reclassified from accumulated other comprehensive loss | ​ |  | 6.8 | ​ |  | — | ​ |  | 3.2 | ​ |  | 10.0
Balances at September 30, 2019 | ​ | $ | (302.7) | ​ | $ | (548.7) | ​ | $ | (12.8) | ​ | $ | (864.2)
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Foreign | ​ | ​ | ​ | Accumulated
​ | ​ | Pension | ​ | Currency | ​ | Loss on | ​ | Other
​ | ​ | Related | ​ | Translation | ​ | Derivative | ​ | Comprehensive
​ |  | Adjustments |  | Adjustments |  | Instruments |  | Loss
Balances at September 30, 2019 | ​ | $ | (302.7) | ​ | $ | (548.7) | ​ | $ | (12.8) | ​ | $ | (864.2)
Other comprehensive income (loss) before reclassification | ​ | ​ | (72.5) | ​ | ​ | (18.6) | ​ | ​ | (5.3) | ​ | ​ | (96.4)
Amounts reclassified from accumulated other comprehensive loss | ​ |  | 32.4 | ​ |  | — | ​ |  | 9.5 | ​ |  | 41.9
Balances at September 30, 2020 | ​ | $ | (342.8) | ​ | $ | (567.3) | ​ | $ | (8.6) | ​ | $ | (918.7)
​

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- Definition The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -URI http://asc.fasb.org/topic&trid=2134417 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 + Details
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