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Earnings per Share (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2020 | Mar. 31, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |
Net income | $ 12,059 | $ 6,345
Weighted average basic shares outstanding (in shares) | 32,586,000 | 32,279,000
Common stock options and restricted stock (in shares) | 297,000 | 338,000
Weighted average shares outstanding, diluted (in shares) | 32,883,000 | 32,617,000
Common shares |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |
Antidilutive securities excluded from earnings per share calculation (in shares) | 18,000 | 258,000

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