Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net loss attributable to New Relic	$ (62,706)	$ (53,626)	$ (194,889)	$ (130,933)
Other comprehensive loss:
Unrealized loss on available-for-sale securities	(1,749)	(1,467)	(2,938)	(3,937)
Comprehensive loss attributable to New Relic	$ (64,455)	$ (55,093)	$ (197,827)	$ (134,870)