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Net income Per Share (Notes) | 3 Months Ended
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Sep. 30, 2020
Earnings Per Share [Abstract] |
Net Income Per Share | 3. Net Income Per Share The following table reconciles basic net income per share of the Company's common stock to diluted net income per share for the three and nine months ended September 30, 2020 and 2019, respectively:
| Three Months Ended September 30, |  | Nine Months Ended September 30,
(in thousands, except per share amounts) | 2020 |  | 2019 |  | 2020 |  | 2019
Net income available to common stockholders | $ | 67,057 |  |  | $ | 43,686 |  |  | $ | 157,362 |  |  | $ | 105,925 |
Basic weighted-average shares outstanding | 43,474 |  |  | 44,477 |  |  | 43,683 |  |  | 44,673 |
Dilutive effect of potential common stock equivalents — restricted stock units | 209 |  |  | 337 |  |  | 190 |  |  | 322 |
Diluted weighted-average shares outstanding | 43,683 |  |  | 44,814 |  |  | 43,873 |  |  | 44,995 |
Net income per common share: |  |  |  |  |  |  |
Basic | $ | 1.54 |  |  | $ | 0.98 |  |  | $ | 3.60 |  |  | $ | 2.37 |
Diluted | $ | 1.54 |  |  | $ | 0.97 |  |  | $ | 3.59 |  |  | $ | 2.35 |

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