Commitments and Contingencies - Additional Information (Detail) $ in Millions	6 Months Ended
Jun. 30, 2024 USD ($)
Commitments and Contingencies [Line Items]
Increase in future lease commitments	$ 77.2
Lessee operating lease commitments not yet commenced	$ 4.1

Amount future lease payments would increase by if early termination clauses were not followed.

No definition available.

Name:	hubs_IncreaseInFutureLeaseCommitments
Namespace Prefix:	hubs_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration