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Revenue (Tables) | 12 Months Ended
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Dec. 31, 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):
|  | Year Ended December 31,
|  | 2018
Retail residential electric service |  | $ | 1,867,370 |
Retail non-residential electric service |  | 1,628,891 |
Wholesale energy sales |  | 109,198 |
Transmission services for others |  | 60,261 |
Other sources |  | 25,527 |
Total operating revenues |  | $ | 3,691,247 |

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