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Supplemental Statement of Cash Flows Information (Schedule of Supplemental Statement of Cash Flows Information) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Supplemental Cash Flow Information [Abstract] |  |  |  |
Interest paid, net of amounts capitalized |  |  | $ 25,617 | $ 24,323
Income taxes paid |  |  | 33,293 | 79,353
Income tax refunds received |  |  | 13,788 | 15,123
Non-cash activities: |  |  |  |
Purchases of property, plant and equipment on account |  |  | 1,993 | 2,230
Impact of the adoption of ASC 842 |  |  |  | 255
Common shares issued from treasury stock for benefit plans | $ 14,900 | $ 14,748 | $ 14,900 | $ 14,748

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- Definition The amount of cash received during the period as refunds for the overpayment of taxes. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3536-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4297-108586 + Details
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