Condensed Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Common Stock	Additional Paid-In Capital	Additional Paid-In Capital Cumulative Effect, Period of Adoption, Adjustment	Treasury Stock	Accumulated Other Comprehensive Loss	Accumulated Deficit	Accumulated Deficit Cumulative Effect, Period of Adoption, Adjustment
Beginning balance (in shares) at Mar. 31, 2021			64,019			260
Beginning balance at Mar. 31, 2021	$ 413,975	$ (45,926)	$ 64	$ 1,001,309	$ (100,136)	$ (263)	$ (19)	$ (587,116)	$ 54,210
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)			192
Issuance of common stock upon exercise of stock options	4,832			4,832
Issuance of common stock for vested restricted stock units (in shares)			354
Issuance of common stock for vested restricted stock units	0		$ 0	0
Issuance of common stock related to acquisition of business (in shares)			401
Issuance of common stock related to acquisition of business	13,487		$ 0	13,487
Stock-based compensation expense	43,020			43,020
Other comprehensive loss, net	(831)						(831)
Net loss attributable to New Relic	(78,414)							(78,414)
Ending balance (in shares) at Jun. 30, 2021			64,966			260
Ending balance at Jun. 30, 2021	350,143		$ 64	962,512		$ (263)	(850)	(611,320)
Beginning balance (in shares) at Mar. 31, 2022			66,988			260
Beginning balance at Mar. 31, 2022	$ 322,704		$ 66	1,114,221		$ (263)	(8,012)	(783,308)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)	96		96
Issuance of common stock upon exercise of stock options	$ 1,725		$ 0	1,725
Issuance of common stock for vested restricted stock units (in shares)			458
Issuance of common stock for vested restricted stock units	0		$ 1	(1)
Issuance of common stock related to acquisition of business (in shares)			0
Issuance of common stock related to acquisition of business	0			0
Stock-based compensation expense	36,668			36,668
Other comprehensive loss, net	(1,936)						(1,936)
Net loss attributable to New Relic	(50,239)							(50,239)
Ending balance (in shares) at Jun. 30, 2022			67,542			260
Ending balance at Jun. 30, 2022	$ 308,922		$ 67	$ 1,152,613		$ (263)	$ (9,948)	$ (833,547)