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Other (Income) Expense, Net (Schedule of Other (Income) Expense, Net) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Mar. 31, 2021 | Mar. 31, 2020
Nonoperating Income Expense [Abstract] |  |  |  |  |
Equity interest in the earnings of the JV (Note 6) |  | $ (3,779) | $ (4,681) | $ (6,165) | $ (7,893)
Net gain on sales of assets and businesses | [1] | (1,354) | (10) | (1,942) | (13,557)
Rent income |  | (393) | (324) | (743) | (575)
Net (gain) loss on investments in deferred compensation program |  | (2,274) | 3,021 | (3,257) | 1,776
Other components of net periodic pension and other postretirement benefit, excluding service cost and interest expense |  | (3,401) | (2,926) | (7,051) | (5,973)
Other |  | (130) | (143) | (296) | (266)
Other (income) expense, net |  | $ (11,331) | $ (5,063) | $ (19,454) | $ (26,488)
[1] | Included in net gain on sale of assets and businesses for the six-months ended March 31, 2020 was the pre-tax gain on sale of Duarte real property in the amount of $13,522 recognized in the first quarter of fiscal year 2020.

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