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Basis of Presentation (Tables) | 9 Months Ended
--- | ---
Jun. 30, 2016
Basis of Presentation |
Schedule of restatement of financials from adoption of accounting principle change |
|  |  |  |  |  | After Voluntary |
|  |  |  |  |  | Change in |
|  |  |  |  |  | Accounting |
|  | As Reported |  | Adjustments |  | Principle |
|  | Three Months Ended June 30, 2015 |
|  | (in thousands) |
Operating revenues |  | $ | 659,694 |  | $ | 1,751 |  | $ | 661,445 |
Operating costs, excluding depreciation |  | 351,670 |  | (1,030 | ) | 350,640 |
Net income |  | 90,860 |  | 12 |  | 90,872 |
Diluted earnings per common share |  | 0.83 |  | — |  | 0.83 |
|  | Nine Months Ended June 30, 2015 |
|  | (in thousands) |
Operating revenues |  | $ | 2,599,331 |  | $ | 8,571 |  | $ | 2,607,902 |
Operating costs, excluding depreciation |  | 1,375,241 |  | 1,961 |  | 1,377,202 |
Net income |  | 443,439 |  | 4,584 |  | 448,023 |
Diluted earnings per common share |  | 4.06 |  | 0.04 |  | 4.10 |
|  | September 30, 2015 |
|  | (in thousands) |
Total assets |  | $ | 7,152,012 |  | $ | (4,770 | ) | $ | 7,147,242 |
Total liabilities |  | 2,254,560 |  | (3,164 | ) | 2,251,396 |
Total shareholders’ equity |  | 4,897,452 |  | (1,606 | ) | 4,895,846 |

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- Definition Tabular disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=56949863&loc=d3e22580-107794 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Direct Effects of a Change in Accounting Principle -URI http://asc.fasb.org/extlink&oid=6510796 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Indirect Effects of a Change in Accounting Principle -URI http://asc.fasb.org/extlink&oid=6515603 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=51655806&loc=d3e765-108305 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Accounting Change -URI http://asc.fasb.org/extlink&oid=6503790 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=56949863&loc=d3e22499-107794 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.10-01.(b)(6)) -URI http://asc.fasb.org/extlink&oid=27015980&loc=d3e46468-122699 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=56949863&loc=d3e22583-107794 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Change in Accounting Principle -URI http://asc.fasb.org/extlink&oid=6507316 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=51655806&loc=d3e725-108305 Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Retrospective Application -URI http://asc.fasb.org/extlink&oid=6523989 + Details
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