Overview Financials News + Filings Key Docs Charts Ownership Insiders
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| In millions, except per share items | Apr-30-15 | Apr-30-14 | Apr-30-13 | Apr-30-12 | Apr-30-11 | Apr-30-10 | Apr-30-09 | Apr-30-08 |
| | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
| Revenues | 1,378.8 | 1,453.9 | 1,407.9 | 897.7 | 956.5 | 603.0 | 507.3 | 799.6 |
| Revenues growth | -5.2% | 3.3% | 56.8% | -6.1% | 58.6% | 18.9% | -36.6% | 51.4% |
| Cost of revenues | 1,075.3 | 1,178.2 | 1,163.8 | 649.7 | 678.5 | 457.6 | 389.4 | 593.4 |
| Gross profit | 303.4 | 275.7 | 244.1 | 248.0 | 278.0 | 145.3 | | 206.3 |
| Gross margin | 22.0% | 19.0% | 17.3% | 27.6% | 29.1% | 24.1% | | |
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| Operating expenses: | | | | | | | | |
| Research, development and related | 135.6 | 119.2 | 113.2 | 110.7 | 88.5 | 77.3 | | |
| Selling, general and administrative | 82.5 | 73.3 | 73.0 | 63.9 | 62.8 | 61.5 | | 62.2 |
| Amortization of acquired patent portfolio | 9.3 | 9.3 | 9.3 | 9.3 | 0.8 | | | |
| Total operating expenses | 227.3 | 201.8 | 195.4 | 183.9 | 152.1 | 138.9 | | 141.6 |
| Income from operations | 76.1 | 73.9 | 48.7 | 64.1 | 125.9 | 6.5 | | 64.7 |
| Operating margin | 5.5% | 5.1% | 3.5% | 7.1% | 13.2% | 1.1% | | |
| Equity in earnings of investee | 4.3 | 4.0 | 3.8 | 3.1 | 2.8 | | | |
| Interest expense, net | -1.5 | -2.0 | -2.7 | -2.1 | -1.2 | -0.8 | | |
| Other income, net | 3.0 | 26.0 | 0.4 | -1.1 | 1.1 | 4.6 | | |
| Income before income taxes | 81.9 | 104.9 | 50.2 | 72.6 | 128.7 | 10.3 | | |
| Provision for (benefit from) income taxes | -11.5 | 9.9 | 7.3 | 6.8 | 4.2 | 3.9 | | 11.0 |
| Net income | 93.4 | 95.0 | 42.9 | 65.8 | 124.5 | 6.7 | -38.1 | 65.0 |
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| Net income per share: | | | | | | | | |
| Basic (in dollars per share) | $1.62 | $1.71 | $0.80 | $1.16 | $2.25 | $0.13 | | $1.20 |
| Diluted (in dollars per share) | $1.57 | $1.70 | $0.80 | $1.13 | $2.11 | $0.13 | | $1.19 |
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| Shares used in computing net income per share: | | | | | | | | |
| Basic (in shares) | 57.6 | 55.5 | 53.5 | 56.7 | 55.3 | 51.1 | | 54.4 |
| Diluted (in shares) | 59.5 | 56.0 | 53.7 | 58.2 | 59.1 | 52.7 | | 54.8 |
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