XML 41 R31.htm IDEA: XBRL DOCUMENT v3.20.2
Stock Compensation Plans (Tables)
 9 Months Ended
Sep. 30, 2020
Share-based Payment Arrangement [Abstract]  
Stock-Based Compensation Expense and Related Tax Benefits
Stock-based compensation expense and related tax benefits were as follows:
 Three Months Ended September 30,Nine Months Ended September 30,
(DOLLARS IN THOUSANDS)2020201920202019
Equity-based awards$8,195 $8,126 $27,177 $26,426 
Liability-based awards850 39 3,347 2,830 
Total stock-based compensation expense9,045 8,165 30,524 29,256 
Less: Tax benefit(1,803)(1,143)(5,765)(4,666)
Total stock-based compensation expense, after tax$7,242 $7,022 $24,759 $24,590