Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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- Definition

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

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- Definition

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

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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.

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No definition available.

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Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Fixed interest rate related to the interest rate derivative.

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

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount of cash outflow for debt, mandatory redeemable security, and principal payment for finance lease obligation.

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Debt (Australia - Ravenhall) (Details)	3 Months Ended	9 Months Ended
Debt (Australia - Ravenhall) (Details)	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2021 AUD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2021 AUD ($)	Dec. 31, 2020 USD ($)	May 22, 2019 USD ($)	May 22, 2019 AUD ($)
Debt Instrument [Line Items]
Payments on long-term debt		$ 359,638,000		$ 380,055,000
Gain (loss) on extinguishment of debt	$ 1,472,000	$ 4,693,000		$ 3,035,000
LIBOR
Debt Instrument [Line Items]
Debt instrument basis spread on variable rate		2.00%	2.00%
Interest Rate Swap
Debt Instrument [Line Items]
Derivative, fixed interest rate		4.22%			4.22%
Non Recourse Debt
Debt Instrument [Line Items]
Debt issuance costs, net		$ 4,624,000				$ 5,237,000
Notes Payable, Other Payables
Debt Instrument [Line Items]
Long-term debt		44,300,000
Debt issuance costs, net		700,000
Ravenhall \| Non Recourse Debt
Debt Instrument [Line Items]
Gain (loss) on extinguishment of debt		(4,500,000)
Debt issuance costs, gross		7,500,000
Ravenhall \| Non Recourse Debt \| Construction Facility
Debt Instrument [Line Items]
Payments on long-term debt		$ 223,600,000	$ 310,000,000
Ravenhall \| Non Recourse Debt \| Non Recourse Notes
Debt Instrument [Line Items]
Debt instrument, face amount							$ 332,900,000	$ 461,600,000
Stated interest rate		4.23%			4.23%
Ravenhall \| National Australia Bank Limited \| Non Recourse Debt \| Construction Facility
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 570,500,000			$ 791,000,000
Debt instrument basis spread on variable rate		2.00%	2.00%