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Related Party Transactions (Recorded Revenue from Related Parties) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Jan. 08, 2013
Related Party Transaction [Line Items]        
Total related party revenue    $ 42us-gaap_RevenueFromRelatedParties $ 3,516us-gaap_RevenueFromRelatedParties  
Brightcove KK [Member]        
Related Party Transaction [Line Items]        
Joint venture, additional ownership interest acquired       37.00%bcov_JointVentureAdditionalOwnershipPercentageAcquired
/ bcov_JointVentureAxis
= bcov_BrightcoveKkMember
J-Stream [Member]        
Related Party Transaction [Line Items]        
Total related party revenue    36us-gaap_RevenueFromRelatedParties
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= bcov_JStreamMember
[1] 3,240us-gaap_RevenueFromRelatedParties
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= bcov_JStreamMember
 
Dentsu [Member]        
Related Party Transaction [Line Items]        
Total related party revenue    $ 6us-gaap_RevenueFromRelatedParties
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= bcov_DentsuMember
[1] $ 276us-gaap_RevenueFromRelatedParties
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= bcov_DentsuMember
 
[1] Represents related party revenue for the period from January 1, 2013 through January 7, 2013, which is the period prior to the Company's acquisition of the remaining 37% interest in Brightcove KK on January 8, 2013.