Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Statement [Abstract]
Revenue	$ 166,054	$ 145,815	$ 328,639	$ 286,825
Cost of revenue	45,198	25,149	78,471	48,762
Gross profit	120,856	120,666	250,168	238,063
Operating expenses:
Research and development	44,628	34,132	85,472	68,471
Sales and marketing	89,378	80,157	174,514	157,007
General and administrative	29,798	23,278	59,232	46,378
Total operating expenses	163,804	137,567	319,218	271,856
Loss from operations	(42,948)	(16,901)	(69,050)	(33,793)
Other income (expense):
Interest income	2,220	4,011	5,001	8,151
Interest expense	(6,216)	(5,888)	(12,320)	(11,707)
Other income (expense), net	(604)	315	(999)	3,293
Loss before income taxes	(47,548)	(18,463)	(77,368)	(34,056)
Income tax provision	380	660	712	624
Net loss	(47,928)	(19,123)	(78,080)	(34,680)
Net loss attributable to redeemable non-controlling interest	377	509	773	897
Net loss attributable to New Relic	$ (47,551)	$ (18,614)	$ (77,307)	$ (33,783)
Net loss attributable to New Relic per share, basic and diluted (in dollars per share)	$ (0.79)	$ (0.32)	$ (1.28)	$ (0.58)
Weighted-average shares used to compute net loss per share, basic and diluted (in shares)	60,545	58,372	60,237	58,161