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Other Income and Other Expense (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
Other income: |  |  |  |
Interest income | $ 184 | $ 495 | $ 294 | $ 746
Miscellaneous | (9) | 2,286 | 116 | 4,402
Total other income | 175 | 2,781 | 410 | 5,148
Other expense: |  |  |  |
Non-operating costs | (1,952) | (2,620) | (4,200) | (4,992)
Investment losses — net | (650) | (105) | (1,145) | (246)
Miscellaneous | (7) | 2,217 | (1,550) | 46
Total other expense | (2,609) | (508) | (6,895) | (5,192)
Arizona Public Service Company |  |  |  |
Other income: |  |  |  |
Interest income | 6 | 417 | 73 | 554
Gain on disposition of property | 478 | 328 | 685 | 645
Miscellaneous | 226 | 2,476 | 591 | 4,784
Total other income | 710 | 3,221 | 1,349 | 5,983
Other expense: |  |  |  |
Non-operating costs | (1,878) | (2,868) | (4,395) | (5,455)
Loss on disposition of property | (251) | (285) | (894) | (468)
Miscellaneous | (320) | 1,676 | (2,514) | (610)
Total other expense | $ (2,449) | $ (1,477) | $ (7,803) | $ (6,533)

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- Definition The aggregate amount of other expense amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating expense recognized during the period. Such amounts may include: (a) unusual costs, (b) loss on foreign exchange transactions, (c) losses on securities (net of profits), and (d) miscellaneous other expense items. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.9) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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