| In millions, except per share items | Jun-30-23 | Dec-31-22 | Sep-30-22 | Jun-30-22 | Mar-31-22 | Dec-31-21 | Sep-30-21 | Jun-30-21 |
| | 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K | 10-Q | 10-Q |
| Cash and Cash Equivalents, Period Increase (Decrease) [Abstract] | | | | | | | | |
| Cash flows from operating activities: | | | | | | | | |
| Net income | 31.9 | 43.0 | 42.7 | 68.9 | 24.6 | 28.3 | 10.8 | -2.4 |
| Adjustments to reconcile net income to net cash from operating activities: | | | | | | | | |
| Depreciation and amortization | | 10.5 | 10.0 | 10.9 | 11.3 | 11.6 | 11.4 | 12.4 |
| Deferred income tax provision | | -21.8 | -1.3 | -1.3 | 1.0 | -13.4 | -0.9 | 0.6 |
| Deferred Income Taxes and Tax Credits | | | | -45.0 | | | | |
| Stock-based compensation | | 1.2 | 1.2 | 1.5 | 0.5 | 1.4 | 0.6 | 0.8 |
| Issuance of stock under 401(k) plan | | 0.4 | 0.4 | 0.4 | 0.4 | 0.2 | 0.4 | 0.3 |
| Foreign currency gain | | 6.8 | 0.1 | 1.1 | -5.4 | 3.1 | -2.4 | -0.1 |
| (Increase) decrease in assets: | | | | | | | | |
| Accounts receivable | | 16.3 | 6.0 | 7.8 | -57.3 | 0.7 | -2.7 | -9.0 |
| Inventories | | 24.6 | -5.3 | -4.6 | -34.2 | -23.4 | -36.4 | -25.8 |
| Prepaid and other current assets | | 5.0 | 8.2 | 7.8 | -9.6 | -1.4 | -3.9 | -7.1 |
| Other assets | | 3.1 | 0.7 | -4.7 | -0.3 | -8.5 | 0.0 | 2.8 |
| Increase (decrease) in liabilities: | | | | | | | | |
| Accounts payable | | 1.8 | -17.0 | -16.4 | 23.9 | 28.8 | 21.3 | 10.5 |
| Other current liabilities | | -31.0 | 17.7 | 18.4 | 13.7 | -9.4 | 16.2 | 7.6 |
| Other liabilities | | -1.4 | -0.5 | 0.2 | 2.2 | -5.1 | 0.8 | -8.2 |
| Net cash provided by operating activities | 31.9 | 58.4 | 53.3 | 67.4 | -18.5 | 13.0 | 15.2 | -1.5 |
| |
| Cash flows from investing activities: | | | | | | | | |
| Capital expenditures | | -14.2 | -13.3 | -11.8 | -7.6 | -14.6 | -9.6 | -5.8 |
| Net cash used for investing activities | | -14.0 | -12.9 | -12.3 | 2.4 | -14.5 | -9.2 | -5.6 |
| |
| Cash flows from financing activities: | | | | | | | | |
| Proceeds from borrowings | | 0.0 | -0.1 | 12.2 | 76.8 | 14.9 | 22.4 | 438.0 |
| Payment on debt | | -4.0 | -34.7 | -46.5 | -39.5 | -9.2 | -25.9 | -21.6 |
| Net cash used for financing activities | | -3.8 | -34.9 | -34.3 | 11.7 | 6.7 | -3.6 | 3.8 |
| Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Continuing Operations | | 2.3 | -3.4 | 2.2 | | -1.7 | -4.7 | |
| Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect | | | | 18.6 | | | | |
| |
| Supplemental information: | | | | | | | | |
| Interest paid | | 14.8 | 0.8 | 15.2 | 0.9 | 19.5 | -1.4 | 15.4 |
| Income taxes paid, net of refunds received | | | 18.9 | 6.7 | 2.1 | | 3.7 | 3.4 |
| Cash and cash equivalents | | | | | | | | |