Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Income Statement [Abstract]
Revenue	$ 785,521	$ 667,648	$ 599,510
Cost of revenue	256,279	181,564	103,237
Gross profit	529,242	486,084	496,273
Operating expenses:
Research and development	211,856	174,851	148,159
Sales and marketing	394,027	361,702	334,319
General and administrative	151,912	120,931	99,284
Total operating expenses	757,795	657,484	581,762
Loss from operations	(228,553)	(171,400)	(85,489)
Other income (expense):
Interest income	2,862	7,888	15,482
Interest expense	(4,921)	(24,901)	(23,695)
Other income (expense), net	(1,170)	(1,918)	2,934
Loss before income taxes	(231,782)	(190,331)	(90,768)
Income tax provision	323	559	211
Net loss	(232,105)	(190,890)	(90,979)
Net loss and adjustment attributable to redeemable non-controlling interest	(18,297)	(1,720)	2,042
Net loss attributable to New Relic	$ (250,402)	$ (192,610)	$ (88,937)
Net loss attributable to New Relic per share, basic (in usd per share)	$ (3.88)	$ (3.15)	$ (1.52)
Net loss attributable to New Relic per share, diluted (in usd per share)	$ (3.88)	$ (3.15)	$ (1.52)
Weighted-average shares used to compute net loss per share, basic (in shares)	64,592	61,070	58,601
Weighted-average shares used to compute net loss per share, diluted (in shares)	64,592	61,070	58,601