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Net Income Per Share | 9 Months Ended
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Sep. 30, 2022
Earnings Per Share [Abstract] |
Net Income Per Share | Net Income Per Share Basic net income per share is computed using the weighted average number of shares of common stock outstanding for the period, excluding unvested RSUs and stock options. Diluted net income per share is based upon the weighted average shares of common stock outstanding for the period plus dilutive potential shares of common stock, including unvested RSUs and stock options using the treasury stock method. The following table sets forth the computation of basic and diluted net income per share for the three and nine months ended September 30, 2022 and 2021 (in thousands):
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2022 |  | 2021 |  | 2022 |  | 2021
Net income | $ | 23,040 |  |  | $ | 16,029 |  |  | $ | 69,057 |  |  | $ | 74,997 |
Shares used to compute basic net income per share | 35,929 |  |  | 36,622 |  |  | 36,117 |  |  | 36,510 |
Dilutive potential common shares |  |  |  |  |  |  |
Stock options | 120 |  |  | 255 |  |  | 174 |  |  | 240 |
Unvested restricted stock awards | 220 |  |  | 540 |  |  | 390 |  |  | 535 |
Shares used to compute diluted net income per share | 36,269 |  |  | 37,417 |  |  | 36,681 |  |  | 37,285 |
Basic net income per share | $ | 0.64 |  |  | $ | 0.44 |  |  | $ | 1.91 |  |  | $ | 2.05 |
Diluted net income per share | $ | 0.64 |  |  | $ | 0.43 |  |  | $ | 1.88 |  |  | $ | 2.01 |
Dilutive shares included in the calculation | 1,208 |  |  | 1,279 |  |  | 1,150 |  |  | 1,312 |
Anti-dilutive shares excluded from the calculation | 549 |  |  | 4 |  |  | 400 |  |  | 8 |

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=109243012&loc=SL65017193-207537 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI https://asc.fasb.org/topic&trid=2144383 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3630-109257 + Details
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