In millions, except per share items | Dec-31-22 | Dec-31-21 | Dec-31-20 | Dec-31-19 | Dec-31-18 | Dec-31-17 | Dec-31-16 | Dec-31-15 |
| 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
Net income | -125.4 | -78.9 | -28.8 | -40.0 | -31.6 | -30.7 | -23.0 | -15.8 |
Depreciation and amortization | 1.6 | 0.9 | 0.6 | 0.4 | 0.6 | 0.6 | 0.9 | 1.0 |
Stock-based compensation | | | | 2.9 | 2.6 | 2.2 | 2.2 | 3.7 |
Deferred taxes | | | | -0.1 | -0.1 | | | |
Change in working capital [+] | 38.8 | 24.3 | 9.8 | 14.2 | 0.1 | 0.6 | 1.7 | -14.0 |
Accounts receivable | | | | -0.7 | 0.3 | -0.2 | 0.1 | -0.1 |
Other current assets | | | | -0.8 | -0.9 | 0.6 | 0.6 | -1.2 |
Deferred revenues | | | | | | | -0.2 | -11.6 |
Other | 38.8 | 24.3 | 9.8 | 15.7 | 0.8 | 0.2 | 1.2 | -1.1 |
Other operating activities | -13.5 | -15.9 | -29.8 | 17.9 | -6.3 | -1.5 | -1.3 | 6.9 |
Cash from operations | -98.4 | -69.5 | -48.1 | -4.7 | -34.7 | -28.7 | -19.6 | -18.1 |
|
Capital expenditures | 2.9 | 2.1 | 2.6 | -1.2 | -0.5 | -0.3 | -0.3 | -0.6 |
Purchases of property and equipment | 2.9 | 2.1 | 2.6 | -1.2 | -0.5 | -0.3 | -0.3 | -0.6 |
Purchases of short-term investments, net | 551.1 | 389.5 | 228.9 | -65.0 | -28.5 | 24.6 | -47.6 | 10.7 |
Purchases of short-term investments | 551.1 | 389.5 | 228.9 | -140.5 | -77.0 | -28.0 | -47.6 | |
Sales of short-term investments | | | | 75.5 | 48.5 | 52.6 | | 10.7 |
Other cash from investing | -850.0 | -638.3 | -248.4 | | | | | |
Cash from investing | -296.0 | -246.8 | -16.8 | -66.2 | -29.0 | 24.3 | -47.8 | 10.2 |
|
Issuance of common stock, net | | | | 27.4 | 102.9 | | 23.8 | |
Option exercises | 0.7 | 0.3 | 0.1 | 0.1 | 0.3 | 0.2 | 0.1 | 0.3 |
Other cash from financing | 279.2 | 447.8 | 85.9 | 0.2 | 9.0 | 7.2 | 0.3 | 0.6 |
Cash from financing | 278.5 | 447.5 | 85.8 | 27.5 | 111.6 | 7.1 | 24.0 | 0.3 |
|
Free cash flow | -95.5 | -67.5 | -45.5 | -6.0 | -35.2 | -29.0 | -19.8 | -18.7 |
Per share (diluted) | ($1.58) | ($1.55) | ($1.32) | ($0.23) | ($1.81) | ($1.61) | ($1.28) | ($1.31) |
|
Cash paid for interest | | | 0.3 | 0.9 | 0.6 | | | |