XML 35 R25.htm IDEA: XBRL DOCUMENT v3.21.1
Fair Value of Financial Assets and Liabilities (Tables)
3 Months Ended
Mar. 31, 2021
Fair Value Disclosures [Abstract]  
Schedule of fair value of long-term debt, including current maturities and advances for construction
 March 31, 2021
  Fair Value
 CostLevel 1Level 2Level 3Total
Long-term debt, including current maturities, net$786,087 — $860,403 — $860,403 
 
 December 31, 2020
  Fair Value
 CostLevel 1Level 2Level 3Total
Long-term debt, including current maturities, net$786,227 $— $944,447 $— $944,447