Fair Value of Financial Instruments [Line Items]

No definition available.

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- Definition

Long-term Investments, Fair Value

+ References

No definition available.

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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- Definition

Fair value portion of borrowing which can be exchanged for a specified number of another security at the option of the issuer or the holder, for example, but not limited to, the entity's common stock.

+ References

No definition available.

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- Definition

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 10
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
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- Definition

Fair value of financial and nonfinancial obligations.

+ References

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

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- Definition

Fair value portion of shares that an entity is required to redeem for cash or other assets at a fixed or determinable date or upon the occurrence of an event.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section 25
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- Definition

The amount for notes payable (written promise to pay), due to related parties.

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- Definition

Fair value portion of an agreement for an unconditional promise by the maker to pay the holder a definite sum of money at a future date.

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Financial instruments - Fair Value of Financial Instruments (Detail) $ in Thousands, $ in Thousands	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2019 CAD ($)
Fair Value of Financial Instruments [Line Items]
Note payable to related party	$ 30,493	$ 0
Cross currency swap
Fair Value of Financial Instruments [Line Items]
Derivative financial instruments, liabilities	84,542
Interest rate swaps
Fair Value of Financial Instruments [Line Items]
Derivative financial instruments, liabilities	19,325
Level 1
Fair Value of Financial Instruments [Line Items]
Long-term investments carried at fair value	1,706,900		$ 1,178,581
Total financial assets	1,706,900	1,178,581
Long-term debt	2,316,586	1,495,153
Convertible debentures	623	623
Total financial liabilities	2,317,209	1,495,776
Level 2
Fair Value of Financial Instruments [Line Items]
Long-term investments carried at fair value	20,015		27,072
Development loans and other receivables	31,088	37,984
Derivative Asset	194	16
Total financial assets	51,297	65,072
Long-term debt	2,823,473	2,788,915
Note payable to related party	30,493
Convertible debentures	0
Derivative financial instruments, liabilities	104,481	83,837
Total financial liabilities	2,974,012	2,887,872
Level 2 \| Commodity contracts for regulatory operations
Fair Value of Financial Instruments [Line Items]
Derivative Asset	194	16
Derivative financial instruments, liabilities	614	2,072
Level 2 \| Cross currency swap \| Designated as a hedge \| Net Investment Hedging
Fair Value of Financial Instruments [Line Items]
Derivative financial instruments, liabilities	84,543	81,765
Level 2 \| Interest rate swaps \| Designated as a hedge
Fair Value of Financial Instruments [Line Items]
Derivative financial instruments, liabilities	19,324
Level 2 \| Series C Preferred Stock
Fair Value of Financial Instruments [Line Items]
Preferred shares, Series C	15,565	15,120
Level 3
Fair Value of Financial Instruments [Line Items]
Long-term investments carried at fair value	110,514		$ 88,494
Development loans and other receivables	0	0
Derivative Asset	51,913	85,688
Total financial assets	162,427	174,182
Derivative financial instruments, liabilities	5,929	827
Total financial liabilities	5,929	827
Level 3 \| Energy contracts \| Designated as a hedge \| Cash flow hedge
Fair Value of Financial Instruments [Line Items]
Derivative Asset	51,525	65,304
Derivative financial instruments, liabilities	5,597	789
Level 3 \| Energy contracts \| Not designated as a hedge
Fair Value of Financial Instruments [Line Items]
Derivative Asset	388
Derivative financial instruments, liabilities	332
Level 3 \| Energy contracts \| Not designated as a hedge \| Cash flow hedge
Fair Value of Financial Instruments [Line Items]
Derivative Asset		20,384
Derivative financial instruments, liabilities		38
Level 3 \| Commodity contracts for regulatory operations
Fair Value of Financial Instruments [Line Items]
Derivative Asset	0
Carrying amount
Fair Value of Financial Instruments [Line Items]
Long-term investments carried at fair value	1,837,429	1,294,147
Development loans and other receivables	23,804	37,050
Derivative Asset	52,107	85,704
Total financial assets	1,913,340	1,416,901
Long-term debt	4,538,470	3,931,868
Convertible debentures	295	342
Derivative financial instruments, liabilities	110,410	84,664
Total financial liabilities	4,693,366	4,030,667
Carrying amount \| Energy contracts \| Designated as a hedge \| Cash flow hedge
Fair Value of Financial Instruments [Line Items]
Derivative Asset	51,525	65,304
Derivative financial instruments, liabilities	5,597	789
Carrying amount \| Energy contracts \| Not designated as a hedge
Fair Value of Financial Instruments [Line Items]
Derivative Asset	388
Derivative financial instruments, liabilities	332
Carrying amount \| Energy contracts \| Not designated as a hedge \| Cash flow hedge
Fair Value of Financial Instruments [Line Items]
Derivative Asset		20,384
Derivative financial instruments, liabilities		38
Carrying amount \| Commodity contracts for regulatory operations
Fair Value of Financial Instruments [Line Items]
Derivative Asset	194	16
Derivative financial instruments, liabilities	614	2,072
Carrying amount \| Cross currency swap \| Designated as a hedge \| Net Investment Hedging
Fair Value of Financial Instruments [Line Items]
Derivative financial instruments, liabilities	84,543	81,765
Carrying amount \| Interest rate swaps \| Designated as a hedge
Fair Value of Financial Instruments [Line Items]
Derivative financial instruments, liabilities	19,324
Carrying amount \| Series C Preferred Stock
Fair Value of Financial Instruments [Line Items]
Preferred shares, Series C	13,698	13,793
Fair value
Fair Value of Financial Instruments [Line Items]
Long-term investments carried at fair value	1,837,429	1,294,147
Development loans and other receivables	31,088	37,984
Derivative Asset	52,107	85,704
Total financial assets	1,920,624	1,417,835
Long-term debt	5,140,059	4,284,068
Note payable to related party	30,493
Convertible debentures	623	623
Derivative financial instruments, liabilities	110,410	84,664
Total financial liabilities	5,297,150	4,384,475
Fair value \| Energy contracts \| Designated as a hedge \| Cash flow hedge
Fair Value of Financial Instruments [Line Items]
Derivative Asset	51,525	65,304
Derivative financial instruments, liabilities	5,597	789
Fair value \| Energy contracts \| Not designated as a hedge
Fair Value of Financial Instruments [Line Items]
Derivative Asset	388
Derivative financial instruments, liabilities	332
Fair value \| Energy contracts \| Not designated as a hedge \| Cash flow hedge
Fair Value of Financial Instruments [Line Items]
Derivative Asset		20,384
Derivative financial instruments, liabilities		38
Fair value \| Commodity contracts for regulatory operations
Fair Value of Financial Instruments [Line Items]
Derivative Asset	194	16
Derivative financial instruments, liabilities	614	2,072
Fair value \| Cross currency swap \| Designated as a hedge \| Net Investment Hedging
Fair Value of Financial Instruments [Line Items]
Derivative financial instruments, liabilities	84,543	81,765
Fair value \| Interest rate swaps \| Designated as a hedge
Fair Value of Financial Instruments [Line Items]
Derivative financial instruments, liabilities	19,324
Fair value \| Series C Preferred Stock
Fair Value of Financial Instruments [Line Items]
Preferred shares, Series C	$ 15,565	$ 15,120