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Selected Quarterly Results of Operations (Unaudited) | 12 Months Ended
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Sep. 30, 2017
Quarterly Financial Information Disclosure [Abstract] |
Selected Quarterly Results of Operations (Unaudited) | Note 21 — Selected Quarterly Results of Operations (Unaudited) The following are details of the unaudited quarterly results of operations for the three months ended:
|  | September 30, |  |  | June 30, |  |  | March 31, |  |  | December 31, |
2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue |  | $ | 979,724 |  |  | $ | 966,695 |  |  | $ | 966,009 |  |  | $ | 954,727 |
Operating income |  |  | 132,047 |  |  |  | 129,912 |  |  |  | 133,781 |  |  |  | 121,593 |
Net income |  |  | 107,209 |  |  |  | 119,264 |  |  |  | 112,560 |  |  |  | 97,793 |
Basic earnings per share |  |  | 0.74 |  |  |  | 0.82 |  |  |  | 0.77 |  |  |  | 0.67 |
Diluted earnings per share |  |  | 0.73 |  |  |  | 0.81 |  |  |  | 0.76 |  |  |  | 0.66 |
2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue |  | $ | 940,656 |  |  | $ | 930,133 |  |  | $ | 925,935 |  |  | $ | 921,505 |
Operating income |  |  | 118,497 |  |  |  | 124,962 |  |  |  | 120,147 |  |  |  | 119,535 |
Net income |  |  | 95,709 |  |  |  | 105,060 |  |  |  | 107,720 |  |  |  | 100,842 |
Basic earnings per share |  |  | 0.65 |  |  |  | 0.71 |  |  |  | 0.72 |  |  |  | 0.67 |
Diluted earnings per share |  |  | 0.64 |  |  |  | 0.70 |  |  |  | 0.71 |  |  |  | 0.66 |

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- Definition The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=68076893&loc=d3e1570-108306 Reference 2: 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=68064558&loc=d3e765-108305 Reference 3: 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=68064558&loc=d3e725-108305 + Details
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