Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Income Statement [Abstract]
Revenue	$ 153,028	$ 124,011	$ 439,853	$ 347,128
Cost of revenue	26,402	20,206	75,164	55,703
Gross profit	126,626	103,805	364,689	291,425
Operating expenses:
Research and development	38,387	26,182	106,858	72,747
Sales and marketing	87,704	66,461	244,711	185,091
General and administrative	24,751	19,702	71,129	51,293
Total operating expenses	150,842	112,345	422,698	309,131
Loss from operations	(24,216)	(8,540)	(58,009)	(17,706)
Other income (expense):
Interest income	3,793	3,922	11,944	9,026
Interest expense	(5,953)	(5,669)	(17,660)	(13,932)
Other income (expense), net	(465)	(8)	2,828	(1,285)
Loss before income taxes	(26,841)	(10,295)	(60,897)	(23,897)
Income tax provision (benefit)	894	(106)	1,518	440
Net loss	(27,735)	(10,189)	(62,415)	(24,337)
Net loss attributable to redeemable non-controlling interest	540	86	1,437	283
Net loss attributable to New Relic	$ (27,195)	$ (10,103)	$ (60,978)	$ (24,054)
Net loss attributable to New relic per share, basic and diluted (in usd per share)	$ (0.46)	$ (0.18)	$ (1.05)	$ (0.42)
Weighted-average shares used to compute net loss per share, basic and diluted (in shares)	58,733	57,096	58,352	56,663