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Stock-Based Compensation (Tables)
9 Months Ended
Sep. 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 September 30Nine months ended September 30
 2023202220232022
 (dollars in thousands)
Compensation expense$3,048 $3,791 $7,288 $10,377 
Tax benefit(673)(840)(1,600)(2,201)
Total stock-based compensation, net of tax $2,375 $2,951 $5,688 $8,176