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v3.3.1.900

Business Segments (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2015 USD ($) segment | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($)
Details of reportable segment |  |  |  |
Operating revenues |  | $ 458,641 | $ 465,791 | $ 472,077
Operating income (loss) |  | 118,489 | 119,045 | 119,072
Interest expense, net |  | (20,630) | (20,690) | (21,708)
Utility Plant |  | 1,060,794 | 1,003,520 | 981,477
Depreciation and amortization expense | [1] | 42,033 | 41,073 | 40,090
Income tax expense/(benefit) |  | 37,731 | 38,048 | 35,783
Capital additions |  | $ 87,323 | 72,553 | 97,379
GSWC |  |  |  |
Details of reportable segment |  |  |  |
Number of reportable segments | segment |  | 2 |  |
Operating revenues |  | $ 364,550 | 361,059 | 358,540
Operating income (loss) |  | 100,409 | 99,742 | 102,343
Utility Plant |  | 1,056,116 | 998,880 |
Depreciation and amortization expense |  | 40,893 | 39,854 | 38,952
Income tax expense/(benefit) |  | 32,472 | 32,006 | 33,134
GSWC | Water |  |  |  |
Details of reportable segment |  |  |  |
Operating revenues |  | 328,511 | 326,672 | 320,131
Operating income (loss) |  | 94,213 | 94,014 | 95,932
Interest expense, net |  | (19,468) | (19,370) | (20,236)
Utility Plant |  | 1,005,114 | 953,678 | 936,386
Depreciation and amortization expense | [1] | 39,190 | 38,388 | 36,636
Income tax expense/(benefit) |  | 30,302 | 30,410 | 30,679
Capital additions |  | 77,440 | 66,304 | 94,581
GSWC | Electric |  |  |  |
Details of reportable segment |  |  |  |
Operating revenues |  | 36,039 | 34,387 | 38,409
Operating income (loss) |  | 6,196 | 5,728 | 6,411
Interest expense, net |  | (1,090) | (1,260) | (1,436)
Utility Plant |  | 51,002 | 45,202 | 40,908
Depreciation and amortization expense | [1] | 1,703 | 1,466 | 2,316
Income tax expense/(benefit) |  | 2,170 | 1,596 | 2,455
Capital additions |  | 8,704 | 4,584 | 2,124
American States Utility Services [Member] | Military Utility Privatization Subsidiaries |  |  |  |
Details of reportable segment |  |  |  |
Operating revenues |  | 94,091 | 104,732 | 113,537
Operating income (loss) |  | 18,091 | 19,351 | 16,737
Interest expense, net |  | (26) | (142) | (264)
Utility Plant |  | 4,678 | 4,640 | 4,183
Depreciation and amortization expense | [1] | 1,140 | 1,219 | 1,138
Income tax expense/(benefit) |  | 6,069 | 7,038 | 4,911
Capital additions |  | $ 1,179 | 1,665 | 674
AWR Parent |  |  |  |
Details of reportable segment |  |  |  |
Number of reportable segments | segment |  | 3 |  |
Operating revenues |  | $ 0 | 0 | 0
Operating income (loss) |  | (11) | (48) | (8)
Interest expense, net |  | (46) | 82 | 228
Utility Plant |  | 0 | 0 | 0
Depreciation and amortization expense | [1] | 0 | 0 | 0
Income tax expense/(benefit) |  | (810) | (996) | (2,262)
Capital additions |  | $ 0 | $ 0 | $ 0
[1] | Depreciation computed on GSWC’s transportation equipment is recorded in other operating expenses and totaled $641,000, $678,000 and $877,000 for the years ended December 31, 2015, 2014 and 2013, respectively.

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