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Derivative Financial Instruments - Cash deposits (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Zero Cost Collar And Forward Contracts [Member] | SC
Deposit Assets [Line Items]
Margin Deposit Assets	$ 1,000	$ 1,000

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- Definition

Deposit assets.

+ References

No definition available.

+ Details

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Balance Type:	na
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- Definition

The amount of cash or securities placed with a broker or counterparty as security for a trading or derivatives securities position which was partially obtained with funds provided by the broker dealer.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(17))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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Balance Type:	debit
Period Type:	instant

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- Details

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- Details

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