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Stock-Based Compensation (Tables)
9 Months Ended
Sep. 30, 2021
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
 2021202020212020
         (in thousands)
Compensation expense$2,192 $1,875 $6,192 $5,403 
Tax benefit(481)(397)(1,352)(1,144)
Stock-based compensation expense, net of tax benefit$1,711 $1,478 $4,840 $4,259