| In millions, except per share items | Mar-31-15 | Dec-31-14 | Sep-30-14 | Jun-30-14 | Mar-31-14 | Dec-31-13 | Sep-30-13 | Jun-30-13 |
| | 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K | 10-Q | 10-Q |
| Net sales of products | 372.9 | | 512.9 | 448.8 | 541.8 | | 430.2 | 590.2 |
| Net sales of services | 144.0 | | 170.9 | 179.6 | 157.3 | | 203.7 | 215.1 |
| Total revenues | 516.9 | 800.4 | 683.8 | 628.4 | 699.1 | 827.0 | 633.9 | 805.3 |
| Total revenues growth | -26.1% | -3.2% | 7.9% | -22.0% | -8.8% | -2.1% | 6.6% | 26.7% |
| Cost of products sold, including $9.8 of inventory charges (Note 3) | 294.8 | 432.3 | 390.6 | 326.9 | 429.7 | 442.0 | 303.7 | 460.1 |
| Cost of services sold | 106.1 | 147.5 | 111.0 | 123.0 | 122.0 | 152.7 | 147.4 | 147.0 |
| Total cost of sales | 400.9 | | 501.6 | 449.9 | 551.7 | | 451.1 | 607.1 |
| Gross profit | 116.0 | 220.6 | 182.2 | 178.5 | 147.4 | 232.3 | 182.8 | 198.2 |
| Gross margin | 22.4% | 27.6% | 26.6% | 28.4% | 21.1% | 28.1% | 28.8% | 24.6% |
| Selling and administrative expenses | 95.6 | 100.2 | 92.0 | 105.1 | 99.8 | 97.8 | 93.1 | 98.4 |
| Research and development expenses | 8.3 | 7.6 | 5.8 | 7.1 | 7.4 | 7.6 | 8.3 | 12.6 |
| Restructuring charges (Note 3) | 18.1 | | | | | | | |
| Transaction-related expenses (Note 1) | 1.6 | | 10.5 | | | | | |
| (Loss) Income from operations | -7.6 | 107.9 | 73.9 | 66.3 | 40.2 | 86.9 | 81.4 | 87.2 |
| Operating margin | -1.5% | 13.5% | 10.8% | 10.6% | 5.8% | 10.5% | 12.8% | 10.8% |
| Interest expense, net | -12.6 | | -13.0 | -12.6 | -13.0 | | -7.8 | -13.4 |
| Other (expense) income, net | -9.2 | -1.0 | -17.7 | -3.8 | 3.3 | -4.5 | -8.1 | 2.0 |
| (Loss) income before income taxes | -29.4 | 62.0 | 43.2 | 49.9 | 30.5 | 66.0 | 65.5 | 75.8 |
| (Benefit from) provision for income taxes | -5.4 | 14.3 | 11.9 | 21.1 | 13.9 | 35.5 | 15.5 | 21.4 |
| Tax rate | 18.4% | 23.1% | 27.5% | 42.3% | 45.6% | 53.8% | 23.7% | 28.2% |
| Net (loss) income | -24.0 | | 31.3 | 28.8 | 16.6 | | 50.0 | 54.4 |
| Net loss (income) attributable to noncontrolling interest | 0.3 | -1.5 | -0.5 | 0.3 | | 2.3 | -0.6 | -1.1 |
| Net (loss) income attributable to Dresser-Rand | -23.7 | 46.0 | 30.8 | 29.1 | 16.6 | 29.6 | 49.4 | 53.3 |
| |
| Net (loss) income attributable to Dresser-Rand per share | | | | | | | | |
| Basic | ($0.31) | $0.60 | $0.40 | $0.38 | $0.22 | $0.43 | $0.65 | $0.70 |
| Diluted | ($0.31) | $0.60 | $0.40 | $0.38 | $0.22 | $0.42 | $0.64 | $0.69 |
| |
| Weighted-average shares outstanding - (in thousands ) | | | | | | | | |
| Basic | 76.7 | 76.6 | 76.6 | 76.5 | 76.4 | 76.1 | 76.3 | 76.2 |
| Diluted | 76.7 | 77.2 | 77.3 | 77.1 | 77.0 | 76.8 | 76.9 | 76.7 |