| Dec'19 | Dec'18 | Dec'17 | ||||
|---|---|---|---|---|---|---|
Operating activities | ||||||
Net income (loss) | ||||||
-1,361,371 | -62,974 | -130,044 | ||||
Adjustments to reconcile net loss to net cash provided by operating activities: | ||||||
Depreciation and amortization | ||||||
27,791 | 20,859 | 16,135 | ||||
Share-based compensation | ||||||
1,377,781 | 14,859 | 28,804 | ||||
Other | ||||||
3,990 | -1,027 | -653 | ||||
Changes in assets and liabilities: | ||||||
Accounts receivable | ||||||
94,224 | 86,094 | 47,833 | ||||
Prepaid expenses and other assets | ||||||
-7,161 | -18,142 | 1,345 | ||||
Operating lease right-of-use assets | ||||||
-32,378 | -18,492 | -8,611 | ||||
Accounts payable | ||||||
11,636 | 6,533 | 11,969 | ||||
Accrued expenses and other liabilities | ||||||
31,890 | 26,336 | 20,596 | ||||
Operating lease liabilities | ||||||
-28,395 | -17,549 | -10,459 | ||||
Net cash provided by operating activities | ||||||
657 | -60,369 | -102,913 | ||||
Investing activities | ||||||
Purchases of property and equipment and intangible assets | ||||||
33,783 | 22,194 | 41,192 | ||||
Purchases of marketable securities | ||||||
1,075,875 | 518,711 | 515,165 | ||||
Sales of marketable securities | ||||||
162,198 | 94,381 | 199,600 | ||||
Maturities of marketable securities | ||||||
360,959 | 561,087 | 298,512 | ||||
Other investing activities | ||||||
0 | 500 | -995 | ||||
Net cash provided by (used in) investing activities | ||||||
-586,501 | 114,063 | -57,250 | ||||
Financing activities | ||||||
Proceeds from issuance of redeemable convertible preferred stock, net of issuance costs | ||||||
0 | 0 | 149,784 | ||||
Proceeds from initial public offering, net of underwriters' discounts and commissions | ||||||
1,573,200 | 0 | 0 | ||||
Proceeds from exercise of stock options, net | ||||||
41,344 | 671 | 480 | ||||
Shares repurchased for tax withholdings on release of restricted stock units | ||||||
475,015 | 0 | 0 | ||||
Fees paid for revolving credit facility | ||||||
0 | 2,552 | 0 | ||||
Other financing activities | ||||||
-11,331 | -335 | 0 | ||||
Net cash used in financing activities | ||||||
1,128,198 | -2,216 | 150,264 | ||||
Effect of exchange rate changes on cash, cash equivalents, and restricted cash | ||||||
99 | -157 | 145 | ||||
Net increase in cash, cash equivalents, and restricted cash | ||||||
542,453 | 51,321 | -9,754 | ||||
Supplemental cash flow information | ||||||
Accrued property and equipment | ||||||
4,772 | 1,884 | 9,659 | ||||
Operating lease right-of-use assets obtained in exchange for operating lease liabilities | ||||||
76,387 | 11,416 | 101,307 | ||||