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Earnings Per Share (Tables)
 6 Months Ended
Jun. 30, 2023
Earnings Per Share [Abstract]  
Summary of Computation of Earnings Per Share Potential common shares that may be issued by the Company relate to outstanding stock options and restricted stock units (RSUs), and are determined using the treasury stock method. Earnings per share have been computed based on the following:
Three months ended June 30,
(in thousands)20232022
Net income$24,892 $31,364 
Average number of common shares outstanding33,219 33,561 
Effect of dilutive stock options and restricted stock83 144 
Average number of common shares outstanding used to calculate diluted earnings per share33,302 33,705 
Options excluded from diluted earnings per share because of their antidilutive effect— — 
Six months ended June 30,
(in thousands)20232022
Net income$60,725 $51,738 
Average number of common shares outstanding33,257 31,815 
Effect of dilutive stock options and restricted stock114 148 
Average number of common shares outstanding used to calculate diluted earnings per share33,371 31,963 
Options excluded from diluted earnings per share because of their antidilutive effect— —