Condensed Consolidated Balance Sheets (Parenthetical) (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Allowance for Doubtful Accounts Receivable, Current	$ 2,518	$ 2,349
Allowance for Doubtful Other Receivables, Current	161	153
Allowance for Doubtful Accounts Receivable, Noncurrent	885	885
Common Stock, No Par Value
Common Stock, Shares Authorized	120,000,000	120,000,000
Common Stock, Shares, Issued	50,307,512	50,233,463
Treasury Stock, Shares	2,470	718
Idaho Power Company
Allowance for Doubtful Accounts Receivable, Current	2,518	2,349
Allowance for Doubtful Other Receivables, Current	$ 161	$ 153
Common Stock, Par or Stated Value Per Share	$ 2.50	$ 2.50
Common Stock, Shares Authorized	50,000,000	50,000,000
Common Stock, Shares, Issued	39,150,812	39,150,812