Discontinued Operations (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended			1 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Feb. 29, 2008	Dec. 31, 2013 Florida [Member]	Apr. 30, 2013 Florida [Member]	Mar. 31, 2013 Florida [Member]	Sep. 30, 2012 Florida [Member] customer	May 31, 2014 Indiana [Member]	Feb. 29, 2008 Indiana [Member]
Discontinued Operations And Other Dispositions [Line Items]
Number of customers							38,000
Number of separate sales transactions				five	five	five
Proceeds from sale of regulated water operations				$ 88,934	$ 88,934	$ 88,934
Gain (loss) on sale	(134)	5,469		21,178	21,178	21,178
Gain (loss) on sale, after tax				13,766	13,766	13,766
Initial valuation payment									16,911
Percentage of utility system that has been relinquished			0.40%
Total payment for Northern and Southern Indiana Assets								$ 67,011