Sale of Stock	9 Months Ended
Sep. 30, 2013
Equity [Abstract]
Sale of Stock	Sale of Stock On March 28, 2013, the Company entered into an underwriting agreement with Robert W. Baird & Co. Incorporated, as the representative of several underwriters (the “Underwriters”), which provided for the issuance and sale in an underwritten public offering (the “Offering”) by the Company and the purchase by the Underwriters of 1,321,000 shares of the Company's common stock with a par value $0.521 per share. The shares were sold at a public offering price of $26.50 per share, and were purchased by the Underwriters at a price of $25.44 per share. The Company also granted the Underwriters a 30-day option to purchase up to 198,150 additional shares of common stock to cover over-allotments, if any. On April 25, 2013, the Underwriters exercised the overallotment option to purchase an additional 100,000 shares of common stock. The Offering and overallotment option closed on April 3, 2013 and April 29, 2013, respectively. The net proceeds received from the Offering and the exercise of the overallotment option were approximately $35,894, after deducting the Underwriters’ discounts and commissions and estimated offering expenses. The net proceeds were used to pay down amounts outstanding as of March 31, 2013 under the Company’s bank lines of credit, as well as to fund the construction programs of the Water Utility Services operations and for other general corporate purposes.

Sale of Stock

9 Months Ended

Sep. 30, 2013

On March 28, 2013, the Company entered into an underwriting agreement with Robert W. Baird & Co. Incorporated, as the representative of several underwriters (the “Underwriters”), which provided for the issuance and sale in an underwritten public offering (the “Offering”) by the Company and the purchase by the Underwriters of 1,321,000 shares of the Company's common stock with a par value $0.521 per share. The shares were sold at a public offering price of $26.50 per share, and were purchased by the Underwriters at a price of $25.44 per share. The Company also granted the Underwriters a 30-day option to purchase up to 198,150 additional shares of common stock to cover over-allotments, if any. On April 25, 2013, the Underwriters exercised the overallotment option to purchase an additional 100,000 shares of common stock.

The Offering and overallotment option closed on April 3, 2013 and April 29, 2013, respectively. The net proceeds received from the Offering and the exercise of the overallotment option were approximately $35,894, after deducting the Underwriters’ discounts and commissions and estimated offering expenses. The net proceeds were used to pay down amounts outstanding as of March 31, 2013 under the Company’s bank lines of credit, as well as to fund the construction programs of the Water Utility Services operations and for other general corporate purposes.