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Stock-Based Compensation (Tables)
 6 Months Ended
Jun. 30, 2023
Share-Based Payment Arrangement [Abstract]  
Summary of Compensation Expense and Related Tax Benefits
The following table presents compensation expense and the related tax benefits for equity awards recognized in the consolidated statements of income:
Three months ended June 30Six months ended June 30
 2023202220232022
 (dollars in thousands)
Compensation expense$2,571 $3,846 $4,240 $6,586 
Tax benefit(565)(758)(927)(1,361)
Total stock-based compensation, net of tax $2,006 $3,088 $3,313 $5,225