| Schedule of basic and diluted income per share |
Basic and diluted net income per share were computed as follows, in thousands, except share and per share amounts:
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Three Months Ended June 30, |
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Six Months Ended June 30, |
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2019 |
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2018 |
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2019 |
|
2018 |
Net income - basic and diluted |
|
$ |
52,051 |
|
$ |
27,153 |
|
$ |
90,035 |
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$ |
53,540 |
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Weighted average number of common shares outstanding - basic |
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33,976,169 |
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35,102,429 |
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34,072,314 |
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35,081,292 |
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Dilutive effect of common stock equivalents: |
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RSAs with service-based conditions |
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84,952 |
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|
165,951 |
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|
88,516 |
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|
174,537 |
RSAs with market-based conditions |
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|
174,840 |
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|
253,382 |
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|
177,436 |
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|
241,552 |
RSAs with performance-based conditions |
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|
71,246 |
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— |
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|
53,618 |
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— |
Stock options |
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|
250,457 |
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|
315,340 |
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|
238,164 |
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|
330,909 |
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Weighted average number of common shares outstanding - diluted |
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34,557,664 |
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35,837,102 |
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34,630,048 |
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35,828,290 |
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Basic income per common share |
|
$ |
1.53 |
|
$ |
0.77 |
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$ |
2.64 |
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$ |
1.53 |
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Diluted income per common share |
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$ |
1.51 |
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$ |
0.76 |
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$ |
2.60 |
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$ |
1.49 |
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| Summary of shares excluded from the calculation of diluted income per share because their effect would have been anti-dilutive |
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Three Months Ended June 30, |
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Six Months Ended June 30, |
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2019 |
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2018 |
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2019 |
|
2018 |
Anti-dilutive common stock equivalents: |
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RSAs with service-based conditions |
|
|
1,087 |
|
|
349 |
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|
7,897 |
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|
312 |
RSAs with market-based conditions |
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— |
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— |
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|
9,851 |
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— |
RSAs with performance-based conditions |
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— |
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— |
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— |
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— |
Stock options |
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81,411 |
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76,349 |
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|
102,550 |
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|
55,777 |
Total anti-dilutive common stock equivalents |
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82,498 |
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|
76,698 |
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|
120,298 |
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|
56,089 |
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