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Commitments and Contingencies - Additional Information (Detail) $ in Millions | 9 Months Ended
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Sep. 30, 2023 USD ($)
Commitments and Contingencies [Line Items] |
Increase in future lease commitments | $ 76.2
Lessee operating lease commitments not yet commenced | $ 1.3

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- Definition Commitments and contingencies. + References No definition available. + Details
Name: | hubs_CommitmentsAndContingenciesLineItems
Namespace Prefix: | hubs_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount future lease payments would increase by if early termination clauses were not followed. + References No definition available. + Details
Name: | hubs_IncreaseInFutureLeaseCommitments
Namespace Prefix: | hubs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Lessee operating lease commitments not yet commenced. + References No definition available. + Details
Name: | hubs_LesseeOperatingLeaseCommitmentsNotYetCommenced
Namespace Prefix: | hubs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration