Debt security and first mortgage bond maximum interest rate limit imposed by the OPUC.

No definition available.

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- Definition

Maximum Borrowing Capacity, Amount

+ References

No definition available.

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- Definition

Principal amount of debt securities and first mortgage bonds authorized by the IPUC, OPUC, and WPSC.

+ References

No definition available.

+ Details

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12317-112629

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12355-112629

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- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
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-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

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- Definition

Carrying amount of collateralized debt obligations with maturities initially due after one year or beyond the operating cycle, if longer, excluding the current portion. Obligations include, but not limited to, mortgage loans, chattel loans, and other borrowings secured by assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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LONG-TERM DEBT: Level 4 (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
LONG-TERM DEBT: Level 4 (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Sep. 30, 2016	Sep. 30, 2015	Jun. 30, 2016
Debt Instrument
Repayments of Long-term Debt		$ 101,064	$ 121,064
Gains (Losses) on Extinguishment of Debt		(14,000)
Principal amount of debt securities and first mortgage bonds authorized				$ 500,000
Maximum Borrowing Capacity, Amount	$ 2,500,000	$ 2,500,000
6.15% Series due 2019
Debt Instrument
Debt Instrument, Interest Rate, Stated Percentage	6.15%	6.15%
Repayments of Long-term Debt	$ 100,000
4.05% Series due 2046
Debt Instrument
First Mortgage Bonds	$ 120,000	$ 120,000
Debt Instrument, Interest Rate, Stated Percentage	4.05%	4.05%
First Mortgage Bonds, Series K [Member]
Debt Instrument
Maximum Borrowing Capacity, Amount	$ 500,000	$ 500,000
Idaho Power Company
Debt Instrument
Repayments of Long-term Debt		$ 101,064	$ 121,064
Debt instrument interest rate limit	7.00%	7.00%