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Revenue (Tables) | 9 Months Ended
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Sep. 30, 2018
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue | The following table provides detail of Pinnacle West's consolidated revenue disaggregated by revenue sources (dollars in thousands):
|  | Three Months Ended September 30, |  | Nine Months Ended September 30,
|  | 2018 |  | 2018
Retail residential electric service |  | $ | 695,480 |  |  | $ | 1,512,402 |
Retail non-residential electric service |  | 496,809 |  |  | 1,275,498 |
Wholesale energy sales |  | 53,501 |  |  | 80,982 |
Transmission services for others |  | 15,902 |  |  | 46,235 |
Other sources |  | 6,342 |  |  | 19,754 |
Total operating revenues |  | $ | 1,268,034 |  |  | $ | 2,934,871 |

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