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Balance Sheet Components - Schedule of Accrued Liabilities (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
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Accrued Liabilities, Current [Abstract] |  |
Accrued property and equipment | $ 3,705 | $ 1,815
Accrued facilities expense | 728 | 1,637
Accrued purchase cancellation fees | 3,508 | 31
Other | 7,283 | 2,595
Accrued liabilities | $ 15,224 | $ 6,078

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- Definition Accrued facilities expense. + References No definition available. + Details
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Namespace Prefix: | qs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Accrued property and equipment. + References No definition available. + Details
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Namespace Prefix: | qs_
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Balance Type: | credit
Period Type: | instant

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- Definition Accrued purchase cancellation fees. + References No definition available. + Details
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Namespace Prefix: | qs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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- Definition Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- References No definition available. + Details
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- Definition Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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