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Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands | 11 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2021 | Dec. 31, 2022 | Jan. 31, 2022
Summary Of Income Taxes Information [Line Items] |  |  |
Change in valuation allowance | $ 8,000 | $ 30,300 |
Unrecognized tax benefits |  | 4,672 | $ 4,672
Unrecognized Tax Benefits that Would Impact Effective Tax Rate |  | 0 |
Domestic Tax Authority [Member] |  |  |
Summary Of Income Taxes Information [Line Items] |  |  |
Operating loss carryforwards |  | 230,900 |
State and Local Jurisdiction [Member] |  |  |
Summary Of Income Taxes Information [Line Items] |  |  |
Deferred Tax Assets, Tax Credit Carryforwards, Research |  | 189,400 |
State and Local Jurisdiction [Member] | Rigetti Computing, Inc [Member] |  |  |
Summary Of Income Taxes Information [Line Items] |  |  |
Deferred Tax Assets, Operating Loss Carryforwards, State and Local |  | 168,100 |
Research Tax Credit Carryforward [Member] | Domestic Tax Authority [Member] |  |  |
Summary Of Income Taxes Information [Line Items] |  |  |
Tax credit carryforwards |  | 2,300 |
Research Tax Credit Carryforward [Member] | State and Local Jurisdiction [Member] |  |  |
Summary Of Income Taxes Information [Line Items] |  |  |
Tax credit carryforwards |  | $ 2,300 |

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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible state and local operating loss carryforwards. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32632-109319 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32621-109319 + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible research tax credit carryforwards. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32632-109319 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32559-109319 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32621-109319 + Details
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 + Details
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