| In millions, except per share items | Dec-31-19 | Sep-30-19 | Jun-30-19 | Mar-31-19 | Dec-31-18 | Sep-30-18 | Jun-30-18 | Mar-31-18 |
| | 10-K | 10-Q | 10-Q | 10-Q | 10-K | 10-Q | 10-Q | 10-Q |
| Operating activities | | | | | | | | |
| Net loss | -238.6 | -29.4 | -16.2 | -20.0 | -21.6 | -16.7 | -14.8 | -22.3 |
| |
| Adjustments to reconcile net loss to net cash (used in) from operating activities: | | | | | | | | |
| Depreciation and amortization | 7.1 | 8.1 | 7.7 | 7.8 | 8.0 | 8.7 | 8.9 | 9.0 |
| Amortization of debt issuance costs and original issue discount | 0.3 | 0.2 | 0.9 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| Provision for doubtful accounts | 0.4 | 0.2 | 0.1 | 0.1 | 0.4 | 0.1 | 0.0 | 0.0 |
| Deferred income taxes | -1.2 | 0.1 | | | 1.1 | -0.2 | | 0.0 |
| Lower of cost or net realizable value inventory adjustments | | | | | | | | |
| Loss (gain) on disposal or impairment of assets | 211.9 | 12.9 | 0.1 | -0.1 | 0.0 | -1.0 | -0.1 | 0.0 |
| Loss on sale of business | | | | | | | | |
| Noncash lease expense | -0.9 | -0.8 | 0.2 | 0.6 | | | | |
| Stock compensation expense | 0.5 | 0.7 | 0.7 | 0.9 | 0.5 | 0.8 | 1.4 | 0.9 |
| Repayment of PIK accrual on notes payable, related parties | -2.0 | | | | | | | |
| Change in fair value of derivative instruments | | | | | -0.6 | -0.6 | -0.7 | -0.6 |
| Changes in operating assets and liabilities: | | | | | | | | |
| Trade accounts and other receivables | 8.2 | 1.7 | 5.6 | 6.1 | 1.6 | 3.7 | -6.0 | 2.2 |
| Inventories | 6.3 | 0.1 | -3.4 | 9.2 | 9.0 | 4.3 | -4.1 | 5.0 |
| Accounts payable | -3.8 | -2.3 | 0.9 | 0.4 | -4.7 | -2.7 | -2.4 | 1.1 |
| Accrued expenses | 0.7 | 8.5 | 0.6 | -8.5 | 6.1 | 1.9 | -1.7 | -2.6 |
| Income tax receivable, net | 0.0 | -0.8 | 0.1 | -0.1 | 0.0 | 0.0 | 0.1 | 0.0 |
| Other, net | 0.1 | 0.1 | 0.3 | -0.5 | 0.4 | 0.6 | 0.7 | 1.4 |
| Net cash used in operating activities | -4.1 | 1.1 | -4.9 | -3.6 | 3.3 | -0.6 | -17.2 | -7.1 |
| |
| Investing activities | | | | | | | | |
| Capital expenditures | 0.0 | -1.1 | -1.1 | | -0.4 | -0.5 | -1.2 | |
| |
| Investment in PicOnyx | | | | | | | | |
| Issuance of Note from PicOnyx | | | | | | | | |
| Payment of Millen sale post-closing matters | -1.5 | | | | | | | |
| Net proceeds from asset sales | 0.2 | 0.7 | 0.0 | 0.1 | 22.3 | 5.2 | 0.1 | 0.0 |
| Net cash (used in) provided by investing activities | -1.3 | -0.8 | -1.6 | -0.6 | 21.9 | 4.7 | -0.7 | -0.4 |
| |
| Financing activities | | | | | | | | |
| Proceeds from issuance of common stock under ATM program | | | | | | | | |
| Repayments on long-term debt | | | -14.5 | | | | | |
| Proceeds from long-term debt | | | 14.5 | | | | | |
| Repayments on notes payable | -0.8 | -1.0 | -0.4 | -0.5 | -0.4 | -0.4 | -0.1 | -0.4 |
| Repayments on notes payable, related parties | | -25.0 | | | | | | |
| Payment of debt issuance costs | | | -0.2 | | | | | |
| Purchase of common stock | | | | -0.3 | | | | -0.4 |
| Net cash (used in) provided by financing activities | -0.8 | -1.0 | -24.4 | 2.6 | -0.4 | -0.4 | 2.7 | -0.8 |
| Net (decrease) increase in cash and cash equivalents and restricted cash | -39.3 | | | | | | | |
| |
| Supplemental cash flow information | | | | | | | | |
| Interest paid | 0.0 | 2.3 | 1.5 | 2.9 | 0.9 | 2.9 | 0.9 | 2.9 |
| |
| Income taxes paid | | | | | | | | |