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SHAREHOLDERS' EQUITY (Tables) | 9 Months Ended
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Jun. 30, 2020
Stockholders' Equity Note [Abstract] |
Components of Accumulated Other Comprehensive Income (Loss) | Components of accumulated other comprehensive loss were as follows:
(in thousands) | June 30, 2020 |  | September 30, 2019
Pre-tax amounts: |  |  |
Unrealized actuarial loss | $ | (35,078 | ) |  | $ | (37,084 | )
| $ | (35,078 | ) |  | $ | (37,084 | )
After-tax amounts: |  |  |
Unrealized actuarial loss | $ | (27,082 | ) |  | $ | (28,635 | )
| $ | (27,082 | ) |  | $ | (28,635 | )
Summary of the Changes in Accumulated Other Comprehensive Income (Loss), Net of Tax, by Component | The following is a summary of the changes in accumulated other comprehensive loss, net of tax, related to the defined benefit pension plan for the three and nine months ended June 30, 2020:
(in thousands) | Three Months Ended June 30, 2020 |  | Nine Months Ended June 30, 2020
Balance at beginning of period | $ | (27,603 | ) |  | $ | (28,635 | )
Activity during the period |  |  |
Amounts reclassified from accumulated other comprehensive income | 521 |  |  | 1,553 |
Net current-period other comprehensive income | 521 |  |  | 1,553 |
Balance at June 30, 2020 | $ | (27,082 | ) |  | $ | (27,082 | )

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- Definition Tabular disclosure of components of comprehensive income (loss). Includes, but is not limited to, foreign currency translation adjustments, foreign currency transactions designated as economic hedges of a net investment in foreign entity, gain (loss) and prior service cost (credit) for pension plans and other postretirement benefit plans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121641772&loc=d3e526-108580 + Details
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