<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.22.0.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>336</ContextCount>
  <ElementCount>554</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>101</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>7</UnitCount>
  <MyReports>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>0001001 - Document - Cover</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/Cover</Role>
      <ShortName>Cover</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>0002002 - Document - Audit Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/AuditInformation</Role>
      <ShortName>Audit Information</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>1001003 - Statement - Consolidated Balance Sheets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/ConsolidatedBalanceSheets</Role>
      <ShortName>Consolidated Balance Sheets</ShortName>
      <MenuCategory>Uncategorized</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>1002004 - Statement - Consolidated Balance Sheets (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/ConsolidatedBalanceSheetsParenthetical</Role>
      <ShortName>Consolidated Balance Sheets (Parenthetical)</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>1003005 - Statement - Consolidated Statements of Operations</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/ConsolidatedStatementsofOperations</Role>
      <ShortName>Consolidated Statements of Operations</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>1004006 - Statement - Consolidated Statements of Comprehensive Loss</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/ConsolidatedStatementsofComprehensiveLoss</Role>
      <ShortName>Consolidated Statements of Comprehensive Loss</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>1005007 - Statement - Consolidated Statements of Stockholders' Equity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/ConsolidatedStatementsofStockholdersEquity</Role>
      <ShortName>Consolidated Statements of Stockholders' Equity</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>1006008 - Statement - Consolidated Statements of Cash Flows</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/ConsolidatedStatementsofCashFlows</Role>
      <ShortName>Consolidated Statements of Cash Flows</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>2101101 - Disclosure - Description of Business</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/DescriptionofBusiness</Role>
      <ShortName>Description of Business</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>2102102 - Disclosure - Summary of Significant Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/SummaryofSignificantAccountingPolicies</Role>
      <ShortName>Summary of Significant Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>2108103 - Disclosure - Business Combination</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/BusinessCombination</Role>
      <ShortName>Business Combination</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>2112104 - Disclosure - NIH Contract</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/NIHContract</Role>
      <ShortName>NIH Contract</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>2116105 - Disclosure - Development Agreement</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/DevelopmentAgreement</Role>
      <ShortName>Development Agreement</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>2118106 - Disclosure - Revenue</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/Revenue</Role>
      <ShortName>Revenue</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>2123107 - Disclosure - Goodwill and Intangible Assets, net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/GoodwillandIntangibleAssetsnet</Role>
      <ShortName>Goodwill and Intangible Assets, net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>2128108 - Disclosure - Balance Sheet Details</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/BalanceSheetDetails</Role>
      <ShortName>Balance Sheet Details</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>2135109 - Disclosure - Debt</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/Debt</Role>
      <ShortName>Debt</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>2139110 - Disclosure - Leases</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/Leases</Role>
      <ShortName>Leases</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>2145111 - Disclosure - Fair Value of Financial Instruments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/FairValueofFinancialInstruments</Role>
      <ShortName>Fair Value of Financial Instruments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>2149112 - Disclosure - Shareholders' Equity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/ShareholdersEquity</Role>
      <ShortName>Shareholders' Equity</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>2153113 - Disclosure - Stock-Based Plans</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/StockBasedPlans</Role>
      <ShortName>Stock-Based Plans</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>2160114 - Disclosure - Income Taxes</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/IncomeTaxes</Role>
      <ShortName>Income Taxes</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>2169115 - Disclosure - Employee Benefit Plans</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/EmployeeBenefitPlans</Role>
      <ShortName>Employee Benefit Plans</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>2171116 - Disclosure - Information About Geographic Areas</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/InformationAboutGeographicAreas</Role>
      <ShortName>Information About Geographic Areas</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>2175117 - Disclosure - Commitments and Contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/CommitmentsandContingencies</Role>
      <ShortName>Commitments and Contingencies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>2177118 - Disclosure - Subsequent Event</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/SubsequentEvent</Role>
      <ShortName>Subsequent Event</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>26</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>2179119 - Disclosure - Schedule II-Valuation And Qualifying Accounts And Reserves</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/ScheduleIIValuationAndQualifyingAccountsAndReserves</Role>
      <ShortName>Schedule II-Valuation And Qualifying Accounts And Reserves</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>27</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>2203201 - Disclosure - Summary of Significant Accounting Policies (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/SummaryofSignificantAccountingPoliciesPolicies</Role>
      <ShortName>Summary of Significant Accounting Policies (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://fluidigm.com/role/SummaryofSignificantAccountingPolicies</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>2304301 - Disclosure - Summary of Significant Accounting Policies (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/SummaryofSignificantAccountingPoliciesTables</Role>
      <ShortName>Summary of Significant Accounting Policies (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://fluidigm.com/role/SummaryofSignificantAccountingPolicies</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>2309302 - Disclosure - Business Combination (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/BusinessCombinationTables</Role>
      <ShortName>Business Combination (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://fluidigm.com/role/BusinessCombination</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>2313303 - Disclosure - NIH Contract (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/NIHContractTables</Role>
      <ShortName>NIH Contract (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://fluidigm.com/role/NIHContract</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>2319304 - Disclosure - Revenue (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/RevenueTables</Role>
      <ShortName>Revenue (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://fluidigm.com/role/Revenue</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>2324305 - Disclosure - Goodwill and Intangible Assets, net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/GoodwillandIntangibleAssetsnetTables</Role>
      <ShortName>Goodwill and Intangible Assets, net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://fluidigm.com/role/GoodwillandIntangibleAssetsnet</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>2329306 - Disclosure - Balance Sheet Details (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/BalanceSheetDetailsTables</Role>
      <ShortName>Balance Sheet Details (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://fluidigm.com/role/BalanceSheetDetails</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>2336307 - Disclosure - Debt (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/DebtTables</Role>
      <ShortName>Debt (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://fluidigm.com/role/Debt</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>2340308 - Disclosure - Leases (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/LeasesTables</Role>
      <ShortName>Leases (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://fluidigm.com/role/Leases</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>2346309 - Disclosure - Fair Value of Financial Instruments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/FairValueofFinancialInstrumentsTables</Role>
      <ShortName>Fair Value of Financial Instruments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://fluidigm.com/role/FairValueofFinancialInstruments</ParentRole>
      <Position>37</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>2350310 - Disclosure - Shareholders' Equity (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/ShareholdersEquityTables</Role>
      <ShortName>Shareholders' Equity (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://fluidigm.com/role/ShareholdersEquity</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>2354311 - Disclosure - Stock-Based Plans (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/StockBasedPlansTables</Role>
      <ShortName>Stock-Based Plans (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://fluidigm.com/role/StockBasedPlans</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>2361312 - Disclosure - Income Taxes (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/IncomeTaxesTables</Role>
      <ShortName>Income Taxes (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://fluidigm.com/role/IncomeTaxes</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>2372313 - Disclosure - Information About Geographic Areas (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/InformationAboutGeographicAreasTables</Role>
      <ShortName>Information About Geographic Areas (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://fluidigm.com/role/InformationAboutGeographicAreas</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>2405401 - Disclosure - Summary of Significant Accounting Policies - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/SummaryofSignificantAccountingPoliciesNarrativeDetails</Role>
      <ShortName>Summary of Significant Accounting Policies - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>42</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>2406402 - Disclosure - Summary of Significant Accounting Policies - Accumulated Other Comprehensive Loss (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/SummaryofSignificantAccountingPoliciesAccumulatedOtherComprehensiveLossDetails</Role>
      <ShortName>Summary of Significant Accounting Policies - Accumulated Other Comprehensive Loss (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>43</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>2407403 - Disclosure - Summary of Significant Accounting Policies - Potential Common Shares Excluded from Computations of Diluted Net Loss Per Share (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/SummaryofSignificantAccountingPoliciesPotentialCommonSharesExcludedfromComputationsofDilutedNetLossPerShareDetails</Role>
      <ShortName>Summary of Significant Accounting Policies - Potential Common Shares Excluded from Computations of Diluted Net Loss Per Share (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>44</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>2410404 - Disclosure - Business Combination - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/BusinessCombinationNarrativeDetails</Role>
      <ShortName>Business Combination - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>45</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>2411405 - Disclosure - Business Combination - Schedule of Consideration Transferred and Identifiable Assets and Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/BusinessCombinationScheduleofConsiderationTransferredandIdentifiableAssetsandLiabilitiesDetails</Role>
      <ShortName>Business Combination - Schedule of Consideration Transferred and Identifiable Assets and Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>46</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>2414406 - Disclosure - NIH Contract - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/NIHContractNarrativeDetails</Role>
      <ShortName>NIH Contract - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>47</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>2415407 - Disclosure - NIH Contract (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/NIHContractDetails</Role>
      <ShortName>NIH Contract (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://fluidigm.com/role/NIHContractTables</ParentRole>
      <Position>48</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>2417408 - Disclosure - Development Agreement (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/DevelopmentAgreementDetails</Role>
      <ShortName>Development Agreement (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://fluidigm.com/role/DevelopmentAgreement</ParentRole>
      <Position>49</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>2420409 - Disclosure - Revenue - Schedule of Disaggregation of Revenue (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/RevenueScheduleofDisaggregationofRevenueDetails</Role>
      <ShortName>Revenue - Schedule of Disaggregation of Revenue (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>50</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>2421410 - Disclosure - Revenue - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/RevenueNarrativeDetails</Role>
      <ShortName>Revenue - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>51</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>2422411 - Disclosure - Revenue - Performance Obligations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/RevenuePerformanceObligationsDetails</Role>
      <ShortName>Revenue - Performance Obligations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>52</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>2425412 - Disclosure - Goodwill and Intangible Assets, net - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/GoodwillandIntangibleAssetsnetNarrativeDetails</Role>
      <ShortName>Goodwill and Intangible Assets, net - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>53</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>2426413 - Disclosure - Goodwill and Intangible Assets, net - Schedule of Finite-lived Intangible Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/GoodwillandIntangibleAssetsnetScheduleofFinitelivedIntangibleAssetsDetails</Role>
      <ShortName>Goodwill and Intangible Assets, net - Schedule of Finite-lived Intangible Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>54</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>2427414 - Disclosure - Goodwill and Intangible Assets, net - Future Amortization Expense (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/GoodwillandIntangibleAssetsnetFutureAmortizationExpenseDetails</Role>
      <ShortName>Goodwill and Intangible Assets, net - Future Amortization Expense (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>55</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>2430415 - Disclosure - Balance Sheet Details - Summary of Cash and Cash Equivalents (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/BalanceSheetDetailsSummaryofCashandCashEquivalentsDetails</Role>
      <ShortName>Balance Sheet Details - Summary of Cash and Cash Equivalents (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>56</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>2431416 - Disclosure - Balance Sheet Details - Inventories (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/BalanceSheetDetailsInventoriesDetails</Role>
      <ShortName>Balance Sheet Details - Inventories (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>57</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>2432417 - Disclosure - Balance Sheet Details - Property and Equipment (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/BalanceSheetDetailsPropertyandEquipmentDetails</Role>
      <ShortName>Balance Sheet Details - Property and Equipment (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>58</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>2433418 - Disclosure - Balance Sheet Details - Accrued Compensation and Related Benefits (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/BalanceSheetDetailsAccruedCompensationandRelatedBenefitsDetails</Role>
      <ShortName>Balance Sheet Details - Accrued Compensation and Related Benefits (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>59</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>2434419 - Disclosure - Balance Sheet Details - Warranty Accrual (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/BalanceSheetDetailsWarrantyAccrualDetails</Role>
      <ShortName>Balance Sheet Details - Warranty Accrual (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>60</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>2437420 - Disclosure - Debt - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/DebtNarrativeDetails</Role>
      <ShortName>Debt - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>61</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>2438421 - Disclosure - Debt - Schedule of Debt (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/DebtScheduleofDebtDetails</Role>
      <ShortName>Debt - Schedule of Debt (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>62</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>2441422 - Disclosure - Leases - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/LeasesNarrativeDetails</Role>
      <ShortName>Leases - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>63</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>2442423 - Disclosure - Leases - Schedule of Operating Lease, Right-of-Use Asset (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/LeasesScheduleofOperatingLeaseRightofUseAssetDetails</Role>
      <ShortName>Leases - Schedule of Operating Lease, Right-of-Use Asset (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>64</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>2443424 - Disclosure - Leases - Schedule of Operating Lease Cost (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/LeasesScheduleofOperatingLeaseCostDetails</Role>
      <ShortName>Leases - Schedule of Operating Lease Cost (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>65</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>2444425 - Disclosure - Leases - Operating Lease Maturity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/LeasesOperatingLeaseMaturityDetails</Role>
      <ShortName>Leases - Operating Lease Maturity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>66</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>2447426 - Disclosure - Fair Value of Financial Instruments - Summary of Investments and Cash Equivalents (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/FairValueofFinancialInstrumentsSummaryofInvestmentsandCashEquivalentsDetails</Role>
      <ShortName>Fair Value of Financial Instruments - Summary of Investments and Cash Equivalents (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>67</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>2448427 - Disclosure - Fair Value of Financial Instruments - Schedule of Debt (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/FairValueofFinancialInstrumentsScheduleofDebtDetails</Role>
      <ShortName>Fair Value of Financial Instruments - Schedule of Debt (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>68</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>2451428 - Disclosure - Shareholders' Equity - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/ShareholdersEquityNarrativeDetails</Role>
      <ShortName>Shareholders' Equity - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>69</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>2452429 - Disclosure - Shareholders' Equity - Schedule of Stock Options (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/ShareholdersEquityScheduleofStockOptionsDetails</Role>
      <ShortName>Shareholders' Equity - Schedule of Stock Options (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>70</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>2455430 - Disclosure - Stock-Based Plans - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/StockBasedPlansNarrativeDetails</Role>
      <ShortName>Stock-Based Plans - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>71</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R72.htm</HtmlFileName>
      <LongName>2456431 - Disclosure - Stock-Based Plans - Weighted-average Assumptions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/StockBasedPlansWeightedaverageAssumptionsDetails</Role>
      <ShortName>Stock-Based Plans - Weighted-average Assumptions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>72</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R73.htm</HtmlFileName>
      <LongName>2457432 - Disclosure - Stock-Based Plans - Restricted and Performance Stock Units (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/StockBasedPlansRestrictedandPerformanceStockUnitsDetails</Role>
      <ShortName>Stock-Based Plans - Restricted and Performance Stock Units (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>73</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R74.htm</HtmlFileName>
      <LongName>2458433 - Disclosure - Stock-Based Plans - Stock Option Activity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/StockBasedPlansStockOptionActivityDetails</Role>
      <ShortName>Stock-Based Plans - Stock Option Activity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>74</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R75.htm</HtmlFileName>
      <LongName>2459434 - Disclosure - Stock-Based Plans - Stock-based Compensation Expense (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/StockBasedPlansStockbasedCompensationExpenseDetails</Role>
      <ShortName>Stock-Based Plans - Stock-based Compensation Expense (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>75</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R76.htm</HtmlFileName>
      <LongName>2462435 - Disclosure - Income Taxes - Loss Before Income Taxes (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/IncomeTaxesLossBeforeIncomeTaxesDetails</Role>
      <ShortName>Income Taxes - Loss Before Income Taxes (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>76</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R77.htm</HtmlFileName>
      <LongName>2463436 - Disclosure - Income Taxes - Components of Provision for Income Taxes (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/IncomeTaxesComponentsofProvisionforIncomeTaxesDetails</Role>
      <ShortName>Income Taxes - Components of Provision for Income Taxes (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>77</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R78.htm</HtmlFileName>
      <LongName>2464437 - Disclosure - Income Taxes - Reconciliation of Income Taxes at Statutory Rate (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/IncomeTaxesReconciliationofIncomeTaxesatStatutoryRateDetails</Role>
      <ShortName>Income Taxes - Reconciliation of Income Taxes at Statutory Rate (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>78</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R79.htm</HtmlFileName>
      <LongName>2465438 - Disclosure - Income Taxes - Components of Deferred Tax Assets and Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/IncomeTaxesComponentsofDeferredTaxAssetsandLiabilitiesDetails</Role>
      <ShortName>Income Taxes - Components of Deferred Tax Assets and Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>79</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R80.htm</HtmlFileName>
      <LongName>2466439 - Disclosure - Income Taxes - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/IncomeTaxesNarrativeDetails</Role>
      <ShortName>Income Taxes - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>80</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R81.htm</HtmlFileName>
      <LongName>2467440 - Disclosure - Income Taxes - Valuation Allowance (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/IncomeTaxesValuationAllowanceDetails</Role>
      <ShortName>Income Taxes - Valuation Allowance (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>81</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R82.htm</HtmlFileName>
      <LongName>2468441 - Disclosure - Income Taxes - Aggregate Changes in Balance of Gross Unrecognized Tax Benefits (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/IncomeTaxesAggregateChangesinBalanceofGrossUnrecognizedTaxBenefitsDetails</Role>
      <ShortName>Income Taxes - Aggregate Changes in Balance of Gross Unrecognized Tax Benefits (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>82</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R83.htm</HtmlFileName>
      <LongName>2470442 - Disclosure - Employee Benefit Plans (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/EmployeeBenefitPlansDetails</Role>
      <ShortName>Employee Benefit Plans (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://fluidigm.com/role/EmployeeBenefitPlans</ParentRole>
      <Position>83</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R84.htm</HtmlFileName>
      <LongName>2473443 - Disclosure - Information About Geographic Areas - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/InformationAboutGeographicAreasNarrativeDetails</Role>
      <ShortName>Information About Geographic Areas - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>84</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R85.htm</HtmlFileName>
      <LongName>2474444 - Disclosure - Information About Geographic Areas - Long-lived Assets by Geographic Areas (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/InformationAboutGeographicAreasLonglivedAssetsbyGeographicAreasDetails</Role>
      <ShortName>Information About Geographic Areas - Long-lived Assets by Geographic Areas (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>85</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R86.htm</HtmlFileName>
      <LongName>2476445 - Disclosure - Commitments and Contingencies (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/CommitmentsandContingenciesDetails</Role>
      <ShortName>Commitments and Contingencies (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://fluidigm.com/role/CommitmentsandContingencies</ParentRole>
      <Position>86</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R87.htm</HtmlFileName>
      <LongName>2478446 - Disclosure - Subsequent Event (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/SubsequentEventDetails</Role>
      <ShortName>Subsequent Event (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://fluidigm.com/role/SubsequentEvent</ParentRole>
      <Position>87</Position>
    </Report>
    <Report instance="fldm-20211231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R88.htm</HtmlFileName>
      <LongName>2480447 - Disclosure - Schedule II-Valuation And Qualifying Accounts And Reserve (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://fluidigm.com/role/ScheduleIIValuationAndQualifyingAccountsAndReserveDetail</Role>
      <ShortName>Schedule II-Valuation And Qualifying Accounts And Reserve (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://fluidigm.com/role/ScheduleIIValuationAndQualifyingAccountsAndReserves</ParentRole>
      <Position>88</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File doctype="10-K" original="fldm-20211231.htm">fldm-20211231.htm</File>
    <File>exhibit1019e-fifthamendmen.htm</File>
    <File>exhibit1019fdefaultwaivera.htm</File>
    <File>exhibit105d2021lease-fluid.htm</File>
    <File>exhibit2112021subsidiaries.htm</File>
    <File>exhibit23110k2021pwcconsent.htm</File>
    <File>exhibit31110k2021.htm</File>
    <File>exhibit31210k2021.htm</File>
    <File>exhibit32110k2021.htm</File>
    <File>exhibit32210k2021.htm</File>
    <File>fldm-20211231.xsd</File>
    <File>fldm-20211231_cal.xml</File>
    <File>fldm-20211231_def.xml</File>
    <File>fldm-20211231_lab.xml</File>
    <File>fldm-20211231_pre.xml</File>
  </InputFiles>
  <SupplementalFiles>
    <File>fldm-20211231_g1.jpg</File>
  </SupplementalFiles>
  <BaseTaxonomies>
    <BaseTaxonomy items="1">http://fasb.org/srt/2021-01-31</BaseTaxonomy>
    <BaseTaxonomy items="1156">http://fasb.org/us-gaap/2021-01-31</BaseTaxonomy>
    <BaseTaxonomy items="37">http://xbrl.sec.gov/dei/2021q4</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
