| In millions, except per share items | Nov-30-19 | Nov-30-18 | Nov-30-17 | Nov-30-16 | Nov-30-15 | Nov-30-14 | Nov-30-13 | Nov-30-12 |
| | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
| Net sales | 736.2 | 769.8 | 783.1 | 759.9 | 838.0 | 987.4 | 1,018.1 | 1,125.5 |
| Net sales growth | -4.4% | -1.7% | 3.1% | -9.3% | -15.1% | -3.0% | -9.5% | -6.3% |
| Gross profit | 176.2 | 190.7 | 200.8 | 203.9 | 193.9 | 199.4 | 212.7 | 227.2 |
| Gross margin | 23.9% | 24.8% | 25.6% | 26.8% | 23.1% | 20.2% | 20.9% | 20.2% |
| Selling, general and administrative | 109.7 | 106.2 | 118.6 | 118.5 | 119.3 | 120.2 | 118.1 | 121.2 |
| Depreciation and amortization | 31.3 | 30.2 | 27.9 | 30.6 | 34.0 | 34.8 | 33.6 | 32.0 |
| Restructuring and severance | 5.3 | 3.5 | 5.7 | 11.1 | 5.9 | 0.9 | 7.1 | 1.0 |
| Interest expense | -18.5 | -17.8 | -19.2 | -24.7 | -28.3 | -32.9 | -31.9 | -36.5 |
| Merger, acquisition, and integration related expense | 10.1 | 4.1 | 0.3 | 0.9 | 0.4 | | | |
| Other (income) expense, net | -3.1 | -0.5 | -2.4 | -0.7 | 6.9 | -2.4 | -1.3 | -1.4 |
| Total other costs and expenses | 195.2 | 176.2 | 204.9 | 194.0 | 215.0 | 187.7 | 186.2 | 190.3 |
| Income (loss) before income taxes | -19.0 | 14.5 | -4.1 | 9.9 | -21.1 | 11.7 | 26.5 | 36.9 |
| Income tax (benefit) expense | 3.4 | -6.2 | 83.7 | 10.3 | -2.4 | -0.4 | 6.0 | 11.2 |
| Net income (loss) | -22.4 | 20.7 | -87.8 | -0.4 | -17.8 | 11.5 | 19.6 | 27.6 |
| |
| Earnings Per Share | | | | | | | | |
| Net income (loss) per share - Basic and Diluted | ($0.50) | $0.46 | ($1.98) | ($0.01) | ($0.39) | $0.25 | $0.42 | $0.61 |
| |
| Weighted average shares outstanding - Basic and Diluted | 44.8 | 44.6 | 44.4 | 44.0 | 45.3 | 46.3 | 46.1 | 45.6 |