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COMMON STOCK EQUITY (Tables) | 3 Months Ended
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Dec. 31, 2014
Equity [Abstract] |
Changes in Common Stock Equity | Changes in common stock equity during the three months ended December 31, 2014, 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 | 42,178 |  | $ | 112,777 |  | $ | 305,185 |  |  | $ | (5,594 | ) |  | $ | (121,031 | ) | $ | 674,829 |  | $ | 966,166 |
Net income |  |  |  |  |  |  |  | 123,320 |  | 123,320 |
Other comprehensive income |  |  |  |  | 875 |  |  |  |  | 875 |
Common stock issued under stock plans | 564 |  | 1,258 |  | 25,099 |  |  |  |  | 3,046 |  |  | 29,403 |
Tax benefits from stock plans |  |  | (1,409 | ) |  |  |  |  |  | (1,409 | )
Cash dividend declared ($.45 per share) |  |  |  |  |  |  |  | (19,023 | ) | (19,023 | )
Treasury stock and other | (91 | ) |  |  |  |  |  | 4,314 |  |  | 4,314 |
Balance as of December 31, 2014 | 42,651 |  | $ | 114,035 |  | $ | 328,875 |  |  | $ | (4,719 | ) |  | $ | (113,671 | ) | $ | 779,126 |  | $ | 1,103,646 |
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 $(455), $9, $0, $(446) | 659 |  |  | (15 | ) |  | — |  |  | 644 |
Amounts reclassified from accumulated other comprehensive income, net of tax of $0, $9, $(169), $(160) | — |  |  | (16 | ) | (1) | 247 |  | (2) | 231 |
Net current-period other comprehensive income (loss), net of tax of $(455), $18, $(169), $(606) | 659 |  |  | (31 | ) |  | 247 |  |  | 875 |
Balance as of December 31, 2014 | $ | 5,441 |  |  | $ | (124 | ) |  | $ | (10,036 | ) |  | $ | (4,719 | )
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 $214, $56, $0, $270 | (310 | ) |  | (96 | ) |  | — |  |  | (406 | )
Losses reclassified from accumulated other comprehensive income, net of tax of $0, $(36) $(111), $(147) | — |  |  | 62 |  | (1) | 161 |  | (2) | 223 |
Net current-period other comprehensive (loss) income, net of tax of $214, $20, $(111), $123 | (310 | ) |  | (34 | ) |  | 161 |  |  | (183 | )
Balance as of December 31, 2013 | $ | 5,090 |  |  | $ | (22 | ) |  | $ | (6,872 | ) |  | $ | (1,804 | )
(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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