Amount of additional bonds will be issued to financial institution upon completion of certain conditions.

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- Definition

Percent of balloon payments due upon maturity of the debt.

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No definition available.

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- Definition

Refers to the period upon which no principal payments will be due in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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Percentage of principal payments required to be paid on a quarterly basis after seven years of principal payments.

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No definition available.

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- Definition

The amount of prepayment premium paid to bondholders.

+ References

No definition available.

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No definition available.

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- Definition

Write-off of amounts previously capitalized as debt finance cost in an extinguishment of debt.

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No definition available.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Amount of the fee that accompanies borrowing money under the debt instrument.

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Description of the frequency of periodic payments (monthly, quarterly, annual).

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

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ 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.

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The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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Debt, South Power Bonds (Details) - USD ($) $ in Thousands		1 Months Ended	12 Months Ended
Debt, South Power Bonds (Details) - USD ($) $ in Thousands	Sep. 21, 2020	Jan. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Sep. 02, 2019
Senior Secured and Unsecured Bonds [Abstract]
Loss on extinguishment of debt			$ 33,062	$ 0	$ 9,568
Senior Secured Bonds [Member] \| South Power [Member]
Senior Secured and Unsecured Bonds [Abstract]
Debt instrument, issuable						$ 73,317
Debt instrument, issuable upon completion of certain conditions				63,000
Proceeds from issuance of bonds		$ 52,144		$ 10,856
Fixed interest rate			8.25%
Maturity period			15 years
Non-payment of principal due period			7 years
Frequency of payments			quarterly
Percentage of quarterly principal payment			1.60%
Percentage of balloon payment due upon maturity			50.00%
Senior Unsecured Bonds [Member] \| South Power [Member]
Senior Secured and Unsecured Bonds [Abstract]
Debt instrument, issuable						$ 43,683
Fixed interest rate			11.00%
Maturity date			Sep. 30, 2036
Non-payment of principal due period			9 years
Frequency of payments			quarterly
Senior Secured Bonds and Senior Unsecured Bonds [Member] \| South Power [Member]
Senior Secured and Unsecured Bonds [Abstract]
Fees paid			$ 3,892
Loss on extinguishment of debt	$ 7,195
Unamortized deferred financing costs, write-off	3,594
Prepayment premium paid to bondholders	$ 3,601