Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands		3 Months Ended
		Jun. 30, 2015	Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
Net income (loss)		$ 1,495	$ (1,019)
Other comprehensive income (loss):
Foreign currency translation adjustments		172	26
Unrealized holding losses which arose during the period on available-for-sale securities	[1]	(77)	0
Recognition of previously unrealized losses on available-for-sale securities included in net income (loss)	[2]	54	0
Other comprehensive income (loss)		149	26
Comprehensive income (loss)		1,644	(993)
Less: Comprehensive loss attributable to noncontrolling interest		(73)	(53)
Comprehensive income (loss) attributable to Rentrak Corporation		$ 1,717	$ (940)

[1] For the three months ended both June 30, 2015 and 2014, the amounts are net of zero deferred taxes

[2] For the three months ended both June 30, 2015 and 2014, the amounts are net of zero deferred tax benefits.