| 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
|
|
|