| Dec'19 | Dec'18 | Dec'17 | Dec'16 | Dec'15 | Dec'14 | Dec'13 |
|---|---|---|---|---|---|---|
Cash flows used in operating activities: | ||||||
Net loss | ||||||
-98,864 | -97,084 | -106,782 | -74,216 | -58,020 | -17,037 | -6,019 |
Adjustments to reconcile net loss to net cash provided by (used in) operating activities: | ||||||
Depreciation and amortization | ||||||
44,952 | 35,602 | 19,095 | 8,270 | 4,863 | 2,320 | 754 |
Allowance for doubtful accounts | ||||||
2,665 | 2,243 | 1,731 | 2,412 | 2,034 | 1,308 | 504 |
Stock-based compensation | ||||||
66,702 | 43,769 | 30,597 | 7,723 | 3,075 | 533 | 298 |
Deferred income taxes | ||||||
-10,868 | -2,247 | -306 | 510 | 36 | 388 | 94 |
Accretion of interest | ||||||
25,438 | 19,487 | 6,382 | 262 | 460 | 106 | 2 |
Amortization of warrants and loss on extinguishment of debt | ||||||
0 | 0 | 14,122 | 7,717 | 798 | - | - |
Gain on sale | ||||||
0 | 5,500 | 0 | - | - | - | - |
Changes in operating assets and liabilities: | ||||||
Accounts receivable | ||||||
15,884 | 10,931 | 3,659 | 2,900 | 6,795 | 5,079 | 928 |
Due from officer | ||||||
- | - | - | - | - | - | 253 |
Prepaid expenses and other current assets | ||||||
2,685 | 2,612 | 2,003 | 826 | 957 | 436 | 663 |
Other assets | ||||||
105 | 414 | -98 | 42 | -5 | 185 | -37 |
Accounts payable | ||||||
905 | -391 | 1,534 | -813 | -612 | 2,099 | -1,099 |
Accrued expenses and other current liabilities | ||||||
14,841 | 3,993 | 4,292 | -2,301 | 3,457 | -26 | 329 |
Accrued compensation | ||||||
4,546 | 8,480 | 3,768 | 1,688 | 2,887 | 1,971 | 802 |
Operating lease liabilities | ||||||
-2,417 | 0 | 0 | - | - | - | - |
Other liabilities | ||||||
643 | 745 | -3,310 | 641 | 1,588 | 2,679 | 89 |
Net cash used in operating activities | ||||||
29,869 | -4,860 | -34,441 | -51,875 | -47,181 | -11,359 | -6,053 |
Cash flows provided by (used in) investing activities: | ||||||
Purchase of property and equipment | ||||||
3,510 | 4,011 | 2,633 | 2,108 | 6,275 | 1,069 | 204 |
Purchase of internal-use software | ||||||
7,390 | 4,396 | 2,882 | 1,304 | 1,542 | 665 | 1,090 |
Purchase of marketable securities | ||||||
0 | 56,347 | 149,261 | 44,146 | 103,030 | - | - |
Proceeds from marketable securities | ||||||
52,100 | 84,170 | 85,753 | 110,717 | 20,411 | - | - |
Sale of assets | ||||||
0 | 5,530 | 0 | - | - | - | - |
Investment in securities | ||||||
5,000 | 0 | 0 | - | - | - | - |
Acquisition of business, net of cash acquired | ||||||
11,187 | 282,442 | 379,356 | 37,013 | 17,767 | 13,844 | 16,462 |
Net cash (used in) provided by investing activities | ||||||
25,013 | -257,496 | -448,379 | 26,146 | -108,203 | -15,578 | -17,756 |
Cash flows provided by financing activities: | ||||||
Net proceeds from the exercise of stock options | ||||||
33,283 | 31,322 | 10,837 | 2,524 | 428 | 747 | 595 |
Proceeds from issuance of convertible notes | ||||||
0 | 279,152 | 263,722 | - | - | - | - |
Proceeds from borrowing under bank and other debt | ||||||
0 | 10 | 166,679 | 34,990 | 6,800 | 19,700 | 3,000 |
Repayment of debt | ||||||
0 | 0 | 226,440 | 17,166 | 6,332 | - | - |
Proceeds from issuance of common stock | ||||||
0 | 330,843 | 258,554 | 250 | 163,118 | - | - |
Proceeds from employee stock purchase plan | ||||||
3,380 | 2,564 | 2,153 | - | - | - | - |
Cash received for withholding taxes on stock-based compensation, net | ||||||
-1,569 | 1,721 | -74 | 80 | - | - | - |
Proceeds from issuance of convertible preferred stock | ||||||
- | - | - | - | - | 50,082 | 14,803 |
Repurchase of stock | ||||||
- | - | - | - | - | 368 | 71 |
Net cash provided by financing activities | ||||||
35,094 | 645,612 | 475,431 | 20,678 | 164,014 | 70,161 | 18,327 |
Net (decrease) increase in cash and cash equivalents | ||||||
89,976 | 383,256 | -7,389 | -5,051 | 8,630 | 43,224 | -5,482 |
Foreign exchange difference | ||||||
388 | -2,084 | 191 | - | - | - | - |
Income taxes paid | ||||||
1,310 | 441 | 137 | - | - | - | - |
Interest paid | ||||||
12,224 | 10,303 | 9,450 | 2,387 | 1,995 | 1,191 | 32 |