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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current.

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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 of lease income from operating, direct financing, and sales-type leases. Includes, but is not limited to, variable lease payments, interest income, profit (loss) recognized at commencement, and lease payments paid and payable to lessor.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

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Period in which remaining performance obligation is expected to be recognized as revenue, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Percentage of remaining performance obligation to total remaining performance obligation not recognized as revenue.

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Summary of Significant Accounting Policies - Revenue Recognition (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($) commercial_offering	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Disaggregation of Revenue [Line Items]
Leasing revenue	$ 300	$ 300	$ 1,100	$ 2,100	$ 2,300
Revenue	79,529	58,581	309,364	242,860	196,943
Contract assets	13,000		26,100	1,300
Remaining performance obligation	$ 472,900		$ 438,700
Number of commercial offerings \| commercial_offering			3
Customer concentration risk \| Customer one \| Contract assets balance
Disaggregation of Revenue [Line Items]
Concentration risk percentage			60.00%
Customer concentration risk \| Customer two \| Contract assets balance
Disaggregation of Revenue [Line Items]
Concentration risk percentage			13.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Disaggregation of Revenue [Line Items]
Remaining performance obligation, percentage			77.00%
Remaining performance obligation, term			12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-04-01
Disaggregation of Revenue [Line Items]
Remaining performance obligation, percentage	68.00%
Remaining performance obligation, term	12 months
Charging systems and installation
Disaggregation of Revenue [Line Items]
Revenue	$ 1,200	2,100	$ 7,700	5,800	6,000
Extended warranty
Disaggregation of Revenue [Line Items]
Revenue	$ 600	$ 400	$ 2,100	$ 1,700	$ 1,300