Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ 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			64,019,000
Beginning balance at Mar. 31, 2021	$ 413,975	$ (45,926)	$ 64	$ 1,001,309	$ (100,136)	$ (263)	$ (19)	$ (587,116)	$ 54,210
Beginning balance, treasury stock (in shares) at Mar. 31, 2021						260,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Effect of adoption of ASU [Extensible Enumeration]	Accounting Standards Update 2020-06
Ending balance (in shares) at Jun. 30, 2021			64,966,000
Ending balance, treasury stock (in shares) at Jun. 30, 2021						260,000
Ending balance at Jun. 30, 2021	$ 350,143		$ 64	962,512		$ (263)	(850)	(611,320)
Beginning balance (in shares) at Mar. 31, 2021			64,019,000
Beginning balance at Mar. 31, 2021	413,975	$ (45,926)	$ 64	1,001,309	$ (100,136)	$ (263)	(19)	(587,116)	$ 54,210
Beginning balance, treasury stock (in shares) at Mar. 31, 2021						260,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)			315,000
Issuance of common stock upon exercise of stock options	7,614			7,614
Issuance of common stock for vested restricted stock units (in shares)			804,000
Issuance of common stock for vested restricted stock units	0		$ 1	(1)
Issuance of common stock related to employee stock purchase plan (in shares)			100,000
Issuance of common stock related to employee stock purchase plan	5,417			5,417
Issuance of common stock related to acquisition of business (in shares)			401,000
Issuance of common stock related to acquisition of business	13,487		$ 0	13,487
Stock-based compensation expense	80,673			80,673
Other comprehensive loss, net	(1,189)						(1,189)
Net loss attributable to New Relic	(132,183)							(132,183)
Ending balance (in shares) at Sep. 30, 2021			65,639,000
Ending balance, treasury stock (in shares) at Sep. 30, 2021						260,000
Ending balance at Sep. 30, 2021	341,868		$ 65	1,008,363		$ (263)	(1,208)	(665,089)
Beginning balance (in shares) at Jun. 30, 2021			64,966,000
Beginning balance at Jun. 30, 2021	350,143		$ 64	962,512		$ (263)	(850)	(611,320)
Beginning balance, treasury stock (in shares) at Jun. 30, 2021						260,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)			123,000
Issuance of common stock upon exercise of stock options	2,782			2,782
Issuance of common stock for vested restricted stock units (in shares)			450,000
Issuance of common stock related to employee stock purchase plan (in shares)			100,000
Issuance of common stock related to employee stock purchase plan	5,417			5,417
Issuance of common stock related to acquisition of business (in shares)			0
Issuance of common stock related to acquisition of business	0		$ 0	0
Stock-based compensation expense	37,653			37,653
Other comprehensive loss, net	(358)						(358)
Net loss attributable to New Relic	(53,769)							(53,769)
Ending balance (in shares) at Sep. 30, 2021			65,639,000
Ending balance, treasury stock (in shares) at Sep. 30, 2021						260,000
Ending balance at Sep. 30, 2021	$ 341,868		$ 65	1,008,363		$ (263)	(1,208)	(665,089)
Beginning balance (in shares) at Mar. 31, 2022	66,988,000		66,988,000
Beginning balance at Mar. 31, 2022	$ 322,704		$ 66	1,114,221		$ (263)	(8,012)	(783,308)
Beginning balance, treasury stock (in shares) at Mar. 31, 2022	260,000					260,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)	269,000		269,000
Issuance of common stock upon exercise of stock options	$ 6,502		$ 0	6,502
Issuance of common stock for vested restricted stock units (in shares)			938,000
Issuance of common stock for vested restricted stock units	0		$ 2	(2)
Issuance of common stock related to employee stock purchase plan (in shares)			103,000
Issuance of common stock related to employee stock purchase plan	6,062			6,062
Issuance of common stock related to acquisition of business (in shares)			270,000
Issuance of common stock related to acquisition of business	12,112			12,112
Stock-based compensation expense	76,420			76,420
Other comprehensive loss, net	(3,821)						(3,821)
Net loss attributable to New Relic	$ (97,014)							(97,014)
Ending balance (in shares) at Sep. 30, 2022	68,568,000		68,568,000
Ending balance, treasury stock (in shares) at Sep. 30, 2022	260,000					260,000
Ending balance at Sep. 30, 2022	$ 322,965		$ 68	1,215,315		$ (263)	(11,833)	(880,322)
Beginning balance (in shares) at Jun. 30, 2022			67,542,000
Beginning balance at Jun. 30, 2022	308,922		$ 67	1,152,613		$ (263)	(9,948)	(833,547)
Beginning balance, treasury stock (in shares) at Jun. 30, 2022						260,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)			173,000
Issuance of common stock upon exercise of stock options	4,777		$ 0	4,777
Issuance of common stock for vested restricted stock units (in shares)			480,000
Issuance of common stock for vested restricted stock units			$ 1	(1)
Issuance of common stock related to employee stock purchase plan (in shares)			103,000
Issuance of common stock related to employee stock purchase plan	6,062			6,062
Issuance of common stock related to acquisition of business (in shares)			270,000
Issuance of common stock related to acquisition of business	12,112			12,112
Stock-based compensation expense	39,752			39,752
Other comprehensive loss, net	(1,885)						(1,885)
Net loss attributable to New Relic	$ (46,775)							(46,775)
Ending balance (in shares) at Sep. 30, 2022	68,568,000		68,568,000
Ending balance, treasury stock (in shares) at Sep. 30, 2022	260,000					260,000
Ending balance at Sep. 30, 2022	$ 322,965		$ 68	$ 1,215,315		$ (263)	$ (11,833)	$ (880,322)