The following table sets forth the computation of basic and diluted earnings per share: | | | | | | | | | | | | | | | | | | | | Quarter Ended September 30, | | Nine Months Ended September 30, | In Thousands | | 2016 |
| 2015 | | 2016 | | 2015 | | | | | | | | | | Numerator: | |
|
|
| | | | | Net income | | $ | 5,999 |
| | $ | 14,511 |
| | $ | 22,437 |
| | $ | 36,652 |
| | | | | | | | | | Denominator: | | | | | | | | | Denominator for basic earnings per share – weighted average shares | | 20,704 |
| | 20,716 |
| | 20,696 |
| | 20,726 |
| | | | | | | | | | Effect of dilutive securities: | | |
| | | | | | Employee stock options | | 71 |
|
| 58 |
| | 67 |
| | 71 |
| | | | | | | | | | Denominator for diluted earnings per share – weighted average shares | | 20,775 |
| | 20,774 |
| | 20,763 |
| | 20,797 |
|
|