In millions, except per share items | Dec-31-18 | Dec-31-17 | Dec-31-16 | Aug-31-15 | Aug-31-14 | Aug-31-13 | Aug-31-12 | Aug-31-11 |
| 10-K | 10-K | 10-K | 10-K/A | 10-K | 10-K | 10-K | 10-K/A |
Net income | -21.9 | 123.4 | -15.2 | -0.5 | -0.8 | -0.4 | -0.1 | -0.3 |
Depreciation and amortization | 31.5 | 43.3 | 4.9 | 0.1 | | | | |
Asset impairment charges | 1.8 | 32.2 | 16.7 | | | 0.0 | | |
Stock-based compensation | 1.9 | 0.3 | 0.8 | | | | | |
Deferred taxes | -5.0 | 29.1 | -1.2 | | | | | |
Change in working capital [+] | 10.5 | -12.7 | 3.7 | 0.0 | 0.4 | -0.1 | 0.0 | -0.1 |
Accounts receivable | 4.2 | -6.7 | -3.1 | 0.0 | | | 0.0 | |
Inventories | 6.3 | -4.8 | -1.3 | | | | | |
Other current assets | 3.2 | -3.0 | 0.2 | 0.0 | 0.3 | 0.0 | | 0.0 |
Accounts payable | 4.6 | -1.0 | 1.8 | 0.0 | | | 0.1 | 0.0 |
Accrued expenses | -7.6 | 5.9 | -0.1 | | | | | 0.0 |
Other | -0.1 | -3.1 | 6.2 | | 0.0 | -0.1 | 0.0 | -0.1 |
Other operating activities | -1.6 | -201.9 | -3.2 | 0.1 | | 0.5 | | 0.3 |
Cash from operations | 17.2 | 13.7 | 6.6 | -0.4 | 0.0 | 0.0 | 0.0 | -0.1 |
|
Capital expenditures [+] | -24.4 | -20.1 | -5.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
Purchases of property and equipment | -24.4 | -20.1 | -5.1 | | | | | |
Sales of property and equipment | 4.9 | 0.7 | | | | | | |
Sales of short-term investments, net [+] | 11.9 | | | | | | | |
Purchases of short-term investments | | | | | 0.0 | | | |
Sales of short-term investments | 11.9 | | | | | | | |
Other cash from investing | | 1.2 | 7.4 | -0.3 | | | | 0.0 |
Cash from investing | -7.7 | -18.2 | 2.3 | -0.3 | 0.0 | 0.0 | 0.0 | 0.0 |
|
Issuance of common stock, net | | 0.4 | 0.9 | 4.5 | 0.0 | | 0.0 | |
Financing costs | -1.2 | -4.9 | -1.6 | | | | | |
Other cash from financing | -27.2 | 22.3 | -18.4 | 0.3 | 0.0 | 0.1 | 0.0 | 0.1 |
Cash from financing | -26.0 | 27.6 | -15.9 | 4.8 | 0.0 | 0.1 | 0.0 | 0.1 |
|
Free cash flow | -7.2 | -6.4 | 1.5 | -0.4 | 0.0 | 0.0 | 0.0 | -0.1 |
Per share (diluted) | ($0.41) | ($0.37) | $0.10 | ($0.04) | ($0.01) | ($0.27) | ($0.07) | ($0.34) |
|
Cash paid for interest | 6.3 | 3.3 | 3.8 | 0.0 | | | | 0.0 |