Convertible Note Payable - Related party - Disaggregates the Net Carrying Value (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2022	Dec. 31, 2021	Jul. 06, 2021
Debt Instrument [Line Items]
Convertible notes payable, net	$ 5,982	$ 6,371
2021 Convertible Note without embedded derivative liability \| Senior Notes
Debt Instrument [Line Items]
Principal	102,900	102,900	$ 100,000
Discount, original issuance	(27,778)	(28,321)
Unamortized debt issuance costs	(2,703)	(2,790)
Discount, beneficial conversion features	4,664	12,359
Convertible notes payable, net	$ 77,083	$ 84,148

Amount of a favorable spread to a debt holder between the amount of debt being converted and the value of the securities received upon conversion. This is an embedded conversion feature of convertible debt issued that is in-the-money at the commitment date.

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

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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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Amount, after accumulated amortization, of debt discount.

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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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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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