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v3.22.4

Balance Sheet Components - Additional Information (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |  |
Depreciation and amortization | $ 2.6 | $ 1.4 | $ 1.0

X
- Definition Property plant and equipment depreciation and amortization. + References No definition available. + Details
Name: | ampl_PropertyPlantAndEquipmentDepreciationAndAmortization
Namespace Prefix: | ampl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration