| **Water And Wastewater Rates**            | 3 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
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| **Water And Wastewater Rates [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| Water And Wastewater Rates                | Note 10 – Water and Wastewater Rates 

 

During the first three months of 2016, the Company’s operating divisions in Ohio, Texas, and Virginia were granted base rate increases designed to increase total operating revenues on an annual basis by $3,090.  Further, during the first three months of 2016, the Company’s operating divisions in Illinois, Pennsylvania (wastewater), and North Carolina received approval to bill infrastructure rehabilitation surcharges designed to increase total operating revenues on an annual basis by $1,365.

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