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CONDENSED CONSOLIDATED STATEMENT OF PARTNERS' CAPITAL - 3 months ended Dec. 31, 2018 - USD ($) shares in Thousands, $ in Thousands | Total | General Partner | Common Stock | Accumulated Other Comprehensive Income (Loss)
--- | --- | --- | --- | ---
Beginning Balance at Sep. 30, 2018 |  | $ 309,785 |  | $ (1,303) | $ 329,129 | $ (18,041)
Beginning Balance, unit at Sep. 30, 2018 |  |  |  | 326 | 53,088 |
Impact from adoption of ASU No. 2014-09 |  | 9,224 |  | $ 60 | $ 9,164 |
Net income |  | 2,315 |  | 15 | 2,300 |
Unrealized gain on pension plan obligation |  | 454 | [1] |  |  | 454
Tax effect of unrealized gain on pension plan |  | (124) |  |  |  | (124)
Unrealized gain on investments |  | 389 |  |  |  | 389
Tax effect of unrealized gain on investments |  | (82) |  |  |  | (82)
Unrealized loss on interest rate hedges |  | (745) |  |  |  | (745)
Tax effect of unrealized loss on interest rate hedges |  | 197 |  |  |  | 197
Distributions |  | (6,413) |  | (188) | (6,225) |
Retirement of units | [2] | (5,735) |  |  | $ (5,735) |
Retirement of units, shares | [2] |  |  |  | (599) |
Ending Balance at Dec. 31, 2018 |  | $ 309,265 |  | $ (1,416) | $ 328,633 | $ (17,952)
Ending Balance, Unit at Dec. 31, 2018 |  |  |  | 326 | 52,489 |
[1] | This item is included in the computation of net periodic pension cost.
[2] | See Note 4 – Common Unit Repurchase and Retirement.

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