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CHANGES IN IDAHO POWER RETAINED EARNINGS (Tables)
9 Months Ended
Sep. 30, 2021
Changes in Idaho Power Retained Earnings [Abstract]  
Changes in Idaho Power Retained Earnings Table
Three months ended
September 30,
Nine months ended
September 30,
2021202020212020
Balance at beginning of period$1,640,374 $1,531,566 $1,599,155 $1,503,805 
Net income98,222 100,389 211,414 196,089 
Dividends to parent(36,036)(33,959)(108,009)(101,898)
Balance at end of period$1,702,560 $1,597,996 $1,702,560 $1,597,996