Fair Value of Financial Assets and Liabilities (Tables)

9 Months Ended

Sep. 30, 2020

Fair Value Disclosures [Abstract]

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

Advances for construction fair values were estimated using broker quotes from companies that frequently purchase these investments.

	September 30, 2020
			Fair Value
	Cost		Level 1		Level 2		Level 3		Total
Long-term debt, including current maturities, net	$	806,938	—		$	991,973	—		$	991,973
Advances for construction	196,853		—		82,150		—		82,150
Total	$	1,003,791	$	—	$	1,074,123	$	—	$	1,074,123

	December 31, 2019
			Fair Value
	Cost		Level 1		Level 2		Level 3		Total
Long-term debt, including current maturities, net	$	808,622	$	—	$	873,454	$	—	$	873,454
Advances for construction	191,062		—		79,550		—		79,550
Total	$	999,684	—		$	953,004	$	—	$	953,004