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| (in thousands, except per share amounts) | 2001 | 2000 | 1999 | |||||
| Numerator: | ||||||||
| Net income — numerator for | ||||||||
| basic net income per share | $ | 167,268 | $ | 82,223 | $ | 33,003 | ||
| Effect of dilutive securities: | ||||||||
| Convertible debt — interest | ||||||||
| expense (net of tax) | 5,247 | – | – | |||||
| Numerator for diluted | ||||||||
| net income per share | $ | 172,515 | $ | 82,223 | $ | 33,003 | ||
| Denominator: | ||||||||
| Weighted-average shares — | ||||||||
| denominator for basic | ||||||||
| net income per share | 66,568 | 63,680 | 64,669 | |||||
| Effect of dilutive securities: | ||||||||
| Employee stock options | 3,073 | 2,370 | 1,682 | |||||
| Convertible debt | 6,193 | – | – | |||||
| Denominator for diluted | ||||||||
| net income per share | 75,834 | 66,050 | 66,351 | |||||
| Net income per share: | ||||||||
| Basic | $ | 2.51 | $ | 1.29 | $ | .51 | ||
| Diluted | $ | 2.27 | $ | 1.24 | $ | .50 | ||
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