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COMMON STOCK EQUITY (Tables) | 6 Months Ended
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Mar. 31, 2015
Equity [Abstract] |
Changes in Common Stock Equity | Changes in common stock equity during the six months ended March 31, 2015, are as follows:
(Thousands) | Number of Shares | Common Stock | Premium on Common Stock | Accumulated Other Comprehensive (Loss) Income | Treasury Stock And Other | Retained Earnings | Total
Balance as of September 30, 2014 | 84,356 |  | $ | 218,223 |  | $ | 199,739 |  |  | $ | (5,594 | ) |  | $ | (121,031 | ) | $ | 674,829 |  | $ | 966,166 |
Net income |  |  |  |  |  |  |  | 184,223 |  | 184,223 |
Other comprehensive income |  |  |  |  | 682 |  |  |  |  | 682 |
Common stock issued under stock plans | 1,196 |  | 2,607 |  | 15,267 |  |  |  |  | 6,329 |  |  | 24,203 |
Tax benefits from stock plans |  |  | (1,386 | ) |  |  |  |  |  | (1,386 | )
Cash dividend declared ($.45 per share) |  |  |  |  |  |  |  | (38,248 | ) | (38,248 | )
Treasury stock and other | (92 | ) |  |  |  |  |  | 15,483 |  |  | 15,483 |
Balance as of March 31, 2015 | 85,460 |  | $ | 220,830 |  | $ | 213,620 |  |  | $ | (4,912 | ) |  | $ | (99,219 | ) | $ | 820,804 |  | $ | 1,151,123 |
Components of Accumulated Other Comprehensive Income, Net of Tax | The following table presents the changes in the components of accumulated other comprehensive income, net of related tax effects:
(Thousands) | Available for Sale Securities | Cash Flow Hedges | Postemployment Benefit Obligation | Total
Balance as of September 30, 2014 | $ | 4,782 |  |  | $ | (93 | ) |  | $ | (10,283 | ) |  | $ | (5,594 | )
Other comprehensive income, net of tax |  |  |  |  |  |  |
Other comprehensive income (loss), before reclassifications, net of tax of $(75), $149, $0, $74 | 109 |  |  | (256 | ) |  | — |  |  | (147 | )
Amounts reclassified from accumulated other comprehensive income, net of tax of $0, $(199), $(337), $(536) | — |  |  | 343 |  | (1) | 486 |  | (2) | 829 |
Net current-period other comprehensive income, net of tax of $(75), $(50), $(337), $(462) | 109 |  |  | 87 |  |  | 486 |  |  | 682 |
Balance as of March 31, 2015 | $ | 4,891 |  |  | $ | (6 | ) |  | $ | (9,797 | ) |  | $ | (4,912 | )
Balance as of September 30, 2013 | $ | 5,400 |  |  | $ | 12 |  |  | $ | (7,033 | ) |  | $ | (1,621 | )
Other comprehensive income, net of tax |  |  |  |  |  |  |
Other comprehensive (loss), before reclassifications, net of tax of $203, $169, $0, $372 | (295 | ) |  | (291 | ) |  | — |  |  | (586 | )
Amounts reclassified from accumulated other comprehensive income, net of tax of $0, $(60), $(223), $(283) | — |  |  | 105 |  | (1) | 322 |  | (2) | 427 |
Net current-period other comprehensive (loss) income, net of tax of $203, $109, $(223), $89 | (295 | ) |  | (186 | ) |  | 322 |  |  | (159 | )
Balance as of March 31, 2014 | $ | 5,105 |  |  | $ | (174 | ) |  | $ | (6,711 | ) |  | $ | (1,780 | )
(1) | Consists of realized losses related to foreign currency derivatives, which are reclassified to gas purchases in the Unaudited Condensed Consolidated Statements of Operations.
(2) | Included in the computation of net periodic pension cost, a component of operations and maintenance expense in the Unaudited Condensed Consolidated Statements of Operations.

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