| **Goodwill (Tables)**   | 3 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
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| **Goodwill [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| Schedule Of Goodwill    |  

						 

						 

						 

						 

						 

						 

						 

						 

						 

						 

 

						 

						 

						 

						 

						 

						 

						 

						 

						 

						 

 

						 

						 

Regulated

						 

						 

						 

						 

						 

						 

 

						 

						 

Segment

						 

Other

						 

Consolidated

 

						 

						 

						 

						 

						 

						 

						 

						 

						 

						 

 

Balance at December 31, 2013

						 

$
24,102 				
						 

$
4,121 				
						 

$
28,223 				
 

Reclassifications to utility plant acquisition adjustment

						 

						 
(202)				
						 

						 

  -

						 

						 
(202)				
 

Other

						 

						 
(22)				
						 

						 

  -

						 

						 
(22)				
 

Balance at March 31, 2014

						 

$
23,878 				
						 

$
4,121 				
						 

$
27,999 				
  |

| X                                                                                                                                                                                 |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract**Namespace Prefix:**us-gaap_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - 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=14024403&loc=d3e13816-109267Reference 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=14024403&loc=d3e13854-109267
+ Details**Name:**us-gaap_ScheduleOfGoodwillTextBlock**Namespace Prefix:**us-gaap_**Data Type:**nonnum:textBlockItemType**Balance Type:**na**Period Type:**duration |