Quarterly Financial Data (Summary of Quarterly Financial Data) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Quarterly Financial Data [Abstract]
Revenue	$ 31,382	$ 31,527	$ 31,003	$ 31,105	$ 29,746	$ 28,527	$ 26,901	$ 24,721	$ 125,017	$ 109,895	$ 87,973
Gross profit	20,159	20,708	20,579	19,838	19,790	19,279	17,729	16,307	81,284	73,105	60,589
Loss from operations	(3,448)	(3,110)	(3,977)	(4,658)	(1,003)	(1,317)	(3,302)	(3,872)	(15,193)	(9,494)	(15,447)
Net loss attributable to Brightcove Inc.	$ (3,924)	$ (3,805)	$ (4,327)	$ (4,837)	$ (1,243)	$ (1,268)	$ (3,522)	$ (4,229)	$ (16,893)	$ (10,262)	$ (13,186)
Net loss per share attributable to common stockholders	$ (0.12)	$ (0.12)	$ (0.13)	$ (0.16)	$ (0.04)	$ (0.04)	$ (0.12)	$ (0.15)	$ (0.53)	$ (0.36)	$ (0.57)