v2.4.1.9

Goodwill Schedule of Goodwill Allocated to Reporting Segments (Tables) | 12 Months Ended
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Dec. 31, 2014
Goodwill [Line Items] |
Schedule of Goodwill [Table Text Block] | The following table reflects goodwill allocated to each reporting segment at December 31, 2014 and 2013:
| Electricity |  | Gas |  | Water |  | Total Company
| (in thousands)
Goodwill balance at January 1, 2013 |  |  |  |  |  |  |
Goodwill before impairment | $ | 475,711 |  |  | $ | 383,743 |  |  | $ | 414,394 |  |  | $ | 1,273,848 |
Accumulated impairment losses | (249,502 | ) |  | — |  |  | (323,330 | ) |  | (572,832 | )
Goodwill, net | 226,209 |  |  | 383,743 |  |  | 91,064 |  |  | 701,016 |
Goodwill impairment | (173,249 | ) |  | — |  |  | — |  |  | (173,249 | )
Adjustments of previous acquisitions | 3,958 |  |  | — |  |  | — |  |  | 3,958 |
Effect of change in exchange rates | 3,314 |  |  | 11,135 |  |  | 2,404 |  |  | 16,853 |
Goodwill balance at December 31, 2013 |  |  |  |  |  |  |
Goodwill before impairment | 493,610 |  |  | 394,878 |  |  | 429,783 |  |  | 1,318,271 |
Accumulated impairment losses | (433,378 | ) |  | — |  |  | (336,315 | ) |  | (769,693 | )
Goodwill, net | 60,232 |  |  | 394,878 |  |  | 93,468 |  |  | 548,578 |
Goodwill impairment | (977 | ) |  | — |  |  | — |  |  | (977 | )
Effect of change in exchange rates | (3,568 | ) |  | (35,393 | ) |  | (7,820 | ) |  | (46,781 | )
Goodwill balance at December 31, 2014 |  |  |  |  |  |  |
Goodwill before impairment | 449,668 |  |  | 359,485 |  |  | 382,655 |  |  | 1,191,808 |
Accumulated impairment losses | (393,981 | ) |  | — |  |  | (297,007 | ) |  | (690,988 | )
Goodwill, net | $ | 55,687 |  |  | $ | 359,485 |  |  | $ | 85,648 |  |  | $ | 500,820 |

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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 + Details
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