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Other Income and Other Expense (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015
Other income: |  |  |  |
Interest income | $ 184 | $ 184 | $ 302 | $ 294
Investment gains — net | 13 | 0 | 13 | 0
Miscellaneous | 0 | (9) | (1) | 116
Total other income | 197 | 175 | 314 | 410
Other expense: |  |  |  |
Non-operating costs | (2,085) | (1,952) | (4,133) | (4,200)
Investment losses — net | (539) | (650) | (1,058) | (1,145)
Miscellaneous | (218) | (7) | (1,689) | (1,550)
Total other expense | (2,842) | (2,609) | (6,880) | (6,895)
Arizona Public Service Company |  |  |  |
Other income: |  |  |  |
Interest income | 109 | 6 | 181 | 73
Gain on disposition of property | 4,989 | 478 | 5,321 | 685
Miscellaneous | 649 | 226 | 855 | 591
Total other income | 5,747 | 710 | 6,357 | 1,349
Other expense: |  |  |  |
Non-operating costs | (2,719) | (1,878) | (4,685) | (4,395)
Loss on disposition of property | (657) | (251) | (1,083) | (894)
Miscellaneous | (1,054) | (320) | (3,412) | (2,514)
Total other expense | $ (4,430) | $ (2,449) | $ (9,180) | $ (7,803)

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