v3.19.3.a.u2

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Operating activities |  |  |
Net loss | $ (514,021) | $ (384,734) | $ (255,916)
Adjustments to reconcile net loss to net cash used in operating activities: |  |  |
Stock-based compensation | 81,122 | 72,565 | 40,055
Depreciation and amortization | 31,021 | 24,862 | 20,537
Amortization/accretion of investments | (3,742) | (1,866) | 1,086
Loss on disposal of property and equipment | 316 | 891 | 0
Changes in assets and liabilities: |  |  |
Accounts receivable | 6,654 | 195 | 1,476
Accounts receivable from related party (Note 14) | 562 | 637 | (1,370)
Prepaid expenses and other assets | 9,751 | (5,289) | 579
Right-of-use assets, operating leases | (5,664) |  |
Accounts payable | (23,964) | 15,017 | (12,766)
Accrued liabilities | (3,362) | 8,787 | 34,369
Deferred revenue | (44,119) | (65,260) | (162,321)
Deferred lease obligation | 0 | 2,420 | 2,932
Operating lease liabilities | 12,647 |  |
Other liabilities | (6,169) | 910 | (145)
Net cash used in operating activities | (458,968) | (330,865) | (331,484)
Investing activities |  |  |
Purchases of marketable securities | (1,145,226) | (1,227,709) | (727,203)
Proceeds from maturities of marketable securities | 993,181 | 783,373 | 800,438
Proceeds from sales of marketable securities | 168,654 | 177,008 | 402,530
Purchases of property and equipment | (31,554) | (105,766) | (58,401)
Net cash (used in) provided by investing activities | (14,945) | (373,094) | 417,364
Financing activities |  |  |
Proceeds from issuance of redeemable convertible preferred stock, net of issuance costs | 0 | 661,111 | 0
Proceeds from initial public offering of common stock, net of issuance costs | 0 | 563,026 | 0
Repurchases of redeemable convertible preferred stock | 0 | (8,182) | 0
Repurchases of redeemable convertible preferred stock | 0 | 0 | (1,483)
Proceeds from issuance of common stock under equity plans | 47,259 | 1,427 | 212
Proceeds from purchase of common stock under employee stock purchase plan | 2,891 | 0 | 0
Charges to financing lease liabilities | 971 |  |
Reimbursement of assets under financing lease obligation | 0 | 11,635 | 2,724
Payments on financing lease obligation | 0 | (2,175) | (1,285)
Net cash provided by financing activities | 51,121 | 1,226,842 | 168
Net (decrease) increase in cash, cash equivalents and restricted cash | (422,792) | 522,883 | 86,048
Cash, cash equivalents and restricted cash, beginning of year | 670,491 | 147,608 | 61,560
Cash, cash equivalents and restricted cash, end of year | 247,699 | 670,491 | 147,608
Supplemental cash flow information |  |  |
Income taxes paid | 416 | 294 | 398
Interest in connection with financing lease obligation | 0 | 2,998 | 0
Non-cash investing and financing activities |  |  |
Issuance costs included in accounts payable and accrued liabilities | 0 | 2,638 | 152
Purchases of property and equipment included in accounts payable and accrued liabilities | 4,676 | 12,892 | 19,959
Leasehold improvements included in prepaid and other current assets | 0 | 10,089 | 1,748
Lease financing obligation | $ 0 | $ 10,089 | $ 1,748

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- Definition Amount of cash outflow to acquire investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3151-108585 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=118954083&loc=d3e26853-111562 + Details
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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585 + Details
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- Definition The cash inflow associated with the amount received from entity's first offering of stock to the public. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 + Details
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- Definition The cash inflow from issuance of callable preferred stock which is identified as being convertible to another type of financial security at the option of the issuer or the holder. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 + Details
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- Definition Amount of cash inflow from maturity, prepayment and call of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=118954083&loc=d3e26853-111562 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3151-108585 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585 + Details
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- Definition The cash inflow from the financed defined contribution plan to acquire shares of the entity. The plan initially holds the shares in a suspense account, which is collateral for the loan. As the plan makes payment on the debt, the shares are released from the suspense account and become available to be allocated to participant accounts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 + Details
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- Definition Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=118954083&loc=d3e26853-111562 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3151-108585 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585 + Details
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- Definition The cash inflow associated with the amount received from the stock plan during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 + Details
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- Definition Amount of noncash expense for share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 + Details
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