Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Cash flows from operating activities:
Net loss attributable to New Relic	$ (60,978)	$ (24,054)
Net loss attributable to redeemable non-controlling interest (Note 3)	(1,437)	(283)
Net loss:	(62,415)	(24,337)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	56,237	38,585
Stock-based compensation expense	70,496	39,624
Amortization of debt discount and issuance costs	15,718	12,313
Gain on lease modification	(3,006)
Other	(2,919)	(800)
Changes in operating assets and liabilities, net of acquisition of business:
Accounts receivable, net	10,015	(3,411)
Prepaid expenses and other assets	(204)	3,262
Deferred contract acquisition costs	(25,786)	(27,689)
Lease right-of-use assets	19,539
Accounts payable	4,257	3,850
Accrued compensation and benefits and other liabilities	1,136	7,771
Lease liabilities	(16,812)
Deferred revenue	(34,590)	16,827
Deferred rent	0	899
Net cash provided by operating activities	31,666	66,894
Cash flows from investing activities:
Purchases of property and equipment	(49,705)	(29,715)
Cash paid for acquisitions, net of cash acquired (Note 2)	(4,250)	(5,556)
Purchases of short-term investments	(337,070)	(581,504)
Proceeds from sale and maturity of short-term investments	292,409	161,237
Capitalized software development costs	(4,463)	(3,810)
Net cash used in investing activities	(103,079)	(459,348)
Cash flows from financing activities:
Investment from redeemable non-controlling interest	978	3,596
Proceeds from issuance of convertible senior notes, net of issuance costs paid of $11,582	0	488,669
Purchase of capped call related to convertible senior notes	0	(63,182)
Proceeds from employee stock purchase plan	5,933	4,887
Proceeds from exercise of employee stock options	5,977	11,519
Net cash provided by financing activities	12,888	445,489
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect, Total	(58,525)	53,035
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Beginning Balance	243,161	140,681
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Ending Balance	184,636	193,716
Supplemental disclosure of cash flow information:
Cash paid for interest and income taxes	3,868	683
Noncash investing and financing activities:
Property and equipment purchased but not yet paid	7,797	5,758
Acquisition holdback	$ 850	$ 865