Related Party Transactions - Recorded Revenue from Related Parties (Parenthetical) (Detail) (Brightcove KK [Member])	1 Months Ended	3 Months Ended
Jan. 31, 2013	Mar. 31, 2013
Brightcove KK [Member]
Related Party Transaction [Line Items]
Cumulative ownership interest	37.00%	37.00%

Percentage of subsidiary's or equity method investee's stock owned by parent immediately after all stock transactions.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section H

Name:	us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration