Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities:
Net loss attributable to New Relic	$ (62,706)	$ (53,626)	$ (194,889)	$ (130,933)
Net loss and adjustment attributable to redeemable non-controlling interest (Note 3)	9,121	(286)	19,175	(1,059)
Net loss	(53,585)	(53,912)	(175,714)	(131,992)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization			66,787	66,315
Stock-based compensation expense	37,791	36,469	117,549	103,044
Amortization of debt discount and issuance costs			1,766	16,632
Other			(204)	1,812
Changes in operating assets and liabilities, net of acquisition of business:
Accounts receivable, net			(3,053)	3,586
Prepaid expenses and other assets			(2,990)	(999)
Deferred contract acquisition costs			(1,668)	(33,093)
Lease right-of-use assets			6,743	(1,338)
Accounts payable			2,922	10,015
Accrued compensation and benefits and other liabilities			14,650	18,141
Lease liabilities			(5,888)	2,158
Deferred revenue			(67,228)	(12,896)
Net cash provided by (used in) operating activities			(46,328)	41,385
Cash flows from investing activities:
Purchases of property and equipment			(3,177)	(15,799)
Cash paid for acquisition, net of cash acquired			(7,192)	(41,536)
Purchases of short-term investments			(175,668)	(293,844)
Proceeds from sale and maturity of short-term investments			212,328	228,050
Capitalized software development costs			(9,406)	(9,739)
Net cash provided by (used in) investing activities			16,885	(132,868)
Cash flows from financing activities:
Proceeds from employee stock purchase plan			5,417	6,494
Proceeds from exercise of employee stock options			29,165	3,632
Net cash provided by financing activities			34,582	10,126
Net increase (decrease) in cash, cash equivalents and restricted cash			5,139	(81,357)
Cash, cash equivalents and restricted cash at beginning of period			246,463	298,164
Cash, cash equivalents and restricted cash at end of period	251,602	216,807	251,602	216,807
Reconciliation of cash, cash equivalents and restricted cash to condensed consolidated balance sheets:
Cash and cash equivalents	245,827	211,145	245,827	211,145
Restricted cash	5,775	5,662	5,775	5,662
Total cash, cash equivalents and restricted cash	$ 251,602	$ 216,807	251,602	216,807
Supplemental disclosure of cash flow information:
Cash paid for interest and income taxes			4,448	3,772
Noncash investing and financing activities:
Property and equipment purchased but not yet paid			3	1,399
Issuance of common stock for the acquisition of business			13,487	62,365
Acquisition holdback			$ 7,250	$ 0