XML 48 R26.htm IDEA: XBRL DOCUMENT v3.21.1
Property, Plant and Equipment (Tables)
 12 Months Ended
Dec. 31, 2019
Entity Information [Line Items]  
Schedule Of Original Cost Of Utility Plant In Service
 As of December 31,
 20202019
 (In Thousands)
Production$4,191,223 $4,154,919 
Transmission408,380 398,903 
Distribution1,671,861 1,594,208 
General plant258,931 250,582 
Total property, plant and equipment$6,530,395 $6,398,612 
Reconciliation Of Asset Retirement Obligation Liability The following is a roll forward of the ARO legal liability year end balances:
 20202019
 (In Thousands)
Balance as of January 1$204,219 $129,451 
Liabilities settled(18,302)(9,891)
Revisions to cash flow and timing estimates1,120 78,153 
Accretion expense8,199 6,506 
Balance as of December 31$195,236 $204,219 
Indianapolis Power And Light Company  
Entity Information [Line Items]  
Schedule Of Original Cost Of Utility Plant In Service
 As of December 31,
 20202019
 (In Thousands)
Production$4,191,223 $4,154,919 
Transmission408,380 398,903 
Distribution1,671,861 1,594,208 
General plant258,931 250,582 
Total property, plant and equipment$6,530,395 $6,398,612 
Reconciliation Of Asset Retirement Obligation Liability The following is a roll forward of the ARO legal liability year end balances:
 20202019
 (In Thousands)
Balance as of January 1$204,219 $129,451 
Liabilities settled(18,302)(9,891)
Revisions to cash flow and timing estimates1,120 78,153 
Accretion expense8,199 6,506 
Balance as of December 31$195,236 $204,219