Consolidated Statements of Cash Flows - USD ($) $ in Thousands |
12 Months Ended |
Mar. 31, 2021 |
Mar. 31, 2020 |
Mar. 31, 2019 |
| Cash flows from operating activities: |
|
|
|
| Net loss |
$ (183,619)
|
$ (250,863)
|
$ (183,533)
|
| Adjustments to reconcile net loss to net cash used in operating activities: |
|
|
|
| Depreciation and amortization |
18,078
|
22,249
|
9,901
|
| Amortization and impairment of internal-use software |
2,168
|
1,040
|
|
| Stock-based compensation expense |
88,425
|
44,838
|
37,491
|
| Gain on sale of property and equipment |
57
|
6
|
|
| Gain on lease termination |
(876)
|
|
|
| Impairment of long-lived assets |
0
|
33,213
|
0
|
| Changes in operating assets and liabilities: |
|
|
|
| Accounts receivable (related party amounts of $0, $2,000 and $(2,000) for the years ended March 31, 2021, 2020 and 2019, respectively) |
3,912
|
4,207
|
(3,889)
|
| Inventories |
7,884
|
(440)
|
12,524
|
| Deferred cost of revenue |
1,163
|
7,184
|
5,720
|
| Prepaid expenses and other current assets |
2,126
|
3,379
|
(2,397)
|
| Operating lease right-of-use assets |
10,288
|
14,557
|
6,317
|
| Other assets |
573
|
480
|
330
|
| Accounts payable (related party amounts of $191, $4,231 and $0 for the years ended March 31, 2021, 2020 and 2019, respectively) |
137
|
(29,809)
|
5,329
|
| Accrued expenses and other current liabilities (related party amounts of $3,517, $(2,599) and $6,147 for the years ended March 31, 2021, 2020 and 2019, respectively) |
82
|
4,916
|
2,999
|
| Deferred revenue (related party amounts of $(14,917), $251 and $44,805 for the years ended March 31, 2021, 2020 and 2019, respectively) |
(16,210)
|
(35,333)
|
15,461
|
| Operating lease liabilities |
(8,528)
|
(5,431)
|
(4,370)
|
| Other liabilities |
88
|
41
|
|
| Net cash used in operating activities |
(74,252)
|
(185,766)
|
(98,117)
|
| Cash flows from investing activities: |
|
|
|
| Purchases of property and equipment |
(4,054)
|
(68,371)
|
(27,400)
|
| Proceeds from sale of property and equipment |
838
|
765
|
|
| Capitalized internal-use software costs |
(3,320)
|
(5,217)
|
(440)
|
| Net cash used in investing activities |
(6,536)
|
(72,823)
|
(27,840)
|
| Cash flows from financing activities: |
|
|
|
| Proceeds from issuance of redeemable convertible preferred stock (related party amounts of $0, $0 and $272,680 for the year ended March 31, 2021, 2020 and 2019, respectively) |
82,500
|
|
272,680
|
| Payments for issuance costs of redeemable convertible preferred stock |
(232)
|
|
(394)
|
| Proceeds from exercise of stock options (related party amounts of $67,359, $0 and $67,850 for the years ended March 31, 2021, 2020 and 2019, respectively) |
76,151
|
8,830
|
72,162
|
| Payments of deferred offering costs |
(3,084)
|
|
|
| Net cash provided by financing activities |
155,335
|
8,830
|
344,448
|
| Net increase (decrease) in cash and restricted cash |
74,547
|
(249,759)
|
218,491
|
| Cash and restricted cash—beginning of period |
216,315
|
466,074
|
247,583
|
| Cash and restricted cash—end of period |
290,862
|
216,315
|
466,074
|
| Supplemental disclosures of non-cash investing and financing activities: |
|
|
|
| Purchases of property and equipment during the period included in accounts payable and accrued expenses |
535
|
3,221
|
8,644
|
| Stock-based compensation capitalized for internal-use software costs |
637
|
792
|
70
|
| Vesting of related party early exercised stock options |
91,046
|
16,962
|
5,654
|
| Deferred offering costs during the period included in accounts payable and accrued expenses |
887
|
|
|
| Reconciliation of cash and restricted cash within the consolidated balance sheets to the amounts shown in the consolidated statements of cash flows above: |
|
|
|
| Cash |
282,489
|
207,942
|
452,747
|
| Restricted cash, current |
1,399
|
1,399
|
6,353
|
| Restricted cash, noncurrent |
6,974
|
6,974
|
6,974
|
| Total cash and restricted cash |
$ 290,862
|
$ 216,315
|
$ 466,074
|