Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Statement [Abstract]
Revenue	$ 145,815	$ 114,896	$ 286,825	$ 223,117
Cost of revenue	25,149	18,447	48,762	35,497
Gross profit	120,666	96,449	238,063	187,620
Operating expenses:
Research and development	34,132	23,962	68,471	46,565
Sales and marketing	80,157	61,142	157,007	118,630
General and administrative	23,278	16,880	46,378	31,591
Total operating expenses	137,567	101,984	271,856	196,786
Loss from operations	(16,901)	(5,535)	(33,793)	(9,166)
Other income (expense):
Interest income	4,011	3,259	8,151	5,104
Interest expense	(5,888)	(5,597)	(11,707)	(8,263)
Other income (expense), net	315	(435)	3,293	(1,277)
Loss before income taxes	(18,463)	(8,308)	(34,056)	(13,602)
Income tax provision	660	225	624	546
Net loss	(19,123)	(8,533)	(34,680)	(14,148)
Net loss attributable to redeemable non-controlling interest	509	197	897	197
Net loss attributable to New Relic	$ (18,614)	$ (8,336)	$ (33,783)	$ (13,951)
Net loss attributable to New relic per share, basic and diluted (in usd per share)	$ (0.32)	$ (0.15)	$ (0.58)	$ (0.25)
Weighted-average shares used to compute net loss per share, basic and diluted (in shares)	58,372	56,706	58,161	56,446