Property and Equipment - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Abstract]
Depreciation and amortization, expense	$ 12.6	$ 7.3	$ 5.3

Depreciation and amortization including internal use software development costs.

No definition available.

Name:	bcov_DepreciationAndAmortizationIncludingInternalUseSoftwareDevelopmentCosts
Namespace Prefix:	bcov_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration