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Accumulated Other Comprehensive Loss (Tables) | 6 Months Ended
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Mar. 31, 2019
Equity [Abstract] |
Components of Accumulated Other Comprehensive Loss | The components of accumulated other comprehensive loss are as follows:
| March 31, 2019 |  | September 30, 2018
Foreign currency translation adjustment | $ | (5,542 | ) |  | $ | (4,955 | )
Retirement plan liability adjustment, net of tax | (3,459 | ) |  | (3,674 | )
Total accumulated other comprehensive loss | $ | (9,001 | ) |  | $ | (8,629 | )

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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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