Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities:
Net loss attributable to New Relic	$ (24,054)	$ (38,354)
Net loss attributable to redeemable non-controlling interest (Note 3)	(283)	0
Net loss:	(24,337)	(38,354)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	38,585	17,306
Stock-based compensation expense	39,624	29,778
Amortization of debt discount and issuance costs	12,313	0
Other	(800)	498
Changes in operating assets and liabilities:
Accounts receivable	(3,411)	9,223
Prepaid expenses and other assets	3,262	(4,438)
Deferred contract acquisition costs	(27,689)	0
Accounts payable	3,850	(829)
Accrued compensation and benefits and other liabilities	7,771	2,475
Deferred revenue	16,827	8,938
Deferred rent	899	(504)
Net cash provided by operating activities	66,894	24,093
Cash flows from investing activities:
Purchases of property and equipment	(29,715)	(17,577)
Cash paid for acquisition (Note 2)	(5,556)	0
Purchases of short-term investments	(581,504)	(78,074)
Proceeds from sale and maturity of short-term investments	161,237	88,232
Capitalized software development costs	(3,810)	(3,054)
Net cash used in investing activities	(459,348)	(10,473)
Cash flows from financing activities:
Investment from redeemable non-controlling interest	3,596	0
Proceeds from issuance of convertible senior notes, net of issuance costs paid of $11,582	488,669	0
Purchase of capped call related to convertible senior notes	(63,182)	0
Proceeds from employee stock purchase plan	4,887	3,029
Proceeds from exercise of employee stock options	11,519	20,370
Net cash provided by financing activities	445,489	23,399
Net increase in cash, cash equivalents and restricted cash	53,035	37,019
Cash, cash equivalents and restricted cash at beginning of period	140,681	96,420
Cash, cash equivalents and restricted cash at end of period	193,716	133,439
Supplemental disclosure of cash flow information:
Cash paid for interest and income taxes	683	358
Noncash investing and financing activities:
Property and equipment purchased but not yet paid	5,758	256
Acquisition holdback	$ 865	$ 0