Fair Value of Financial Assets and Liabilities (Tables)

3 Months Ended

Mar. 31, 2015

Fair Value of Financial Assets and Liabilities

Schedule of fair value of long-term debt, including current maturities, and advances for construction

	March 31, 2015
					Fair Value
	Cost				Level 1				Level 2				Level 3				Total
Long -term debt, including current maturities	$		425,610		—				$		544,493		—				$		544,493
Advances for construction	181,553				—				74,217				—				74,217
Total	$		607,163		$		—		$		618,710		$		—		$		618,710
	December 31, 2014
				Fair Value
	Cost			Level 1				Level 2				Level 3				Total
Long -term debt, including current maturities	$	425,840		$		—		$		534,068		$		—		$		534,068
Advances for construction	182,284			—				72,571				—				72,571
Total	$	608,124						$		606,639		$		—		$		606,639