Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2013		Dec. 31, 2012
Income Statement [Abstract]
Revenue	$ 31,609		$ 24,948		$ 89,926		$ 70,662
Cost of sales	16,458		13,847		48,013		37,343
Gross margin	15,151		11,101		41,913		33,319
Operating expenses:
Selling and administrative	15,846		12,870		44,683		54,150
Loss from operations	(695)		(1,769)		(2,770)		(20,831)
Other income:
Interest income, net	53		41		144		390
Loss before income taxes	(642)		(1,728)		(2,626)		(20,441)
Provision (benefit) for income taxes	(276)		117		(406)		179
Net loss	(366)		(1,845)		(2,220)		(20,620)
Net loss attributable to noncontrolling interest	(23)		(31)		(52)		(31)
Net loss attributable to Rentrak Corporation	$ (343)		$ (1,814)		$ (2,168)		$ (20,589)
Net loss per share attributable to Rentrak Corporation common stockholders:
Basic (usd per share)	$ (0.03)		$ (0.15)		$ (0.18)		$ (1.77)
Diluted (usd per share)	$ (0.03)		$ (0.15)		$ (0.18)		$ (1.77)
Shares used in per share calculations:
Basic (shares)	12,181	[1]	11,996	[1]	12,116	[1]	11,634	[1]
Diluted (shares)	12,181		11,996		12,116		11,634

[1] Includes 184,458 and 151,554 vested cumulative DSUs, respectively, for the three months ended December 31, 2013 and 2012 and 177,648 and 138,838 vested cumulative DSUs, respectively, for the nine months ended December 31, 2013 and 2012, in each case, that will not be issued until the directors holding the DSUs retire from our Board of Directors.