Amount of assets pledged to secure a debt instrument.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=123599511&loc=d3e64711-112823

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

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- Definition

Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 8
-URI https://asc.fasb.org/extlink&oid=126999549&loc=SL98516268-108586

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
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Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
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-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(2))
-URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

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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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Restricted Cash (Details) - USD ($)	1 Months Ended	9 Months Ended
Restricted Cash (Details) - USD ($)	Sep. 30, 2022	Sep. 30, 2022	Apr. 15, 2021
Restricted Cash and Cash Equivalents Items [Line Items]
Deposited of restricted cash	$ 77,900,000	$ 77,900,000
2021 Bonds
Restricted Cash and Cash Equivalents Items [Line Items]
Debt collateral amount			$ 71,200,000
Bond Letter of Credit
Restricted Cash and Cash Equivalents Items [Line Items]
Line of credit annual fee percentage		0.50%
Letters of credit outstanding	$ 0	$ 0
Power Letter of Credit
Restricted Cash and Cash Equivalents Items [Line Items]
Line of credit annual fee percentage	0.30%
Debt collateral amount	$ 6,600,000	6,600,000
Letters of credit outstanding	$ 0	$ 0