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STOCK-BASED COMPENSATION (Tables)
 6 Months Ended
Jun. 30, 2025
Share-Based Payment Arrangement, Noncash Expense [Abstract]  
Stock-Based Compensation Cost and Associated Tax Benefit
Presented below is a summary of the stock-based compensation cost and associated tax benefit included in the accompanying consolidated statements of operations:
Three Months Ended June 30,
Six Months Ended June 30,
2025202420252024
Stock-based compensation cost$61 $56 $118 $109 
Tax benefit$13 $12 $25 $24 
Weighted Average Assumptions used in Determining Fair Value for Options Granted
The following weighted average assumptions were used in determining the fair value using the Black-Scholes option-pricing model for options granted in 2025:
Expected dividend yield0.73 %
Expected stock volatility27 %
Risk-free interest rate4.51 %
Expected holding period5.6 years
Stock Option Exercises and Restricted Stock Vesting
The following table summarizes information relating to stock option exercises and restricted stock vesting:
Six Months Ended
June 30,
2025
2024
Exercise of stock options:
Proceeds from stock option exercises$20 $34 
Aggregate intrinsic value$31 $43 
Tax benefit realized upon exercise$7 $7 
Number of shares exercised
0.1 0.2 
Vesting of restricted stock:
Fair value of shares vested$236 $176 
Tax benefit realized upon vesting$58 $43 
Number of shares vested0.5 0.5 
Vesting of performance-based restricted stock:
Fair value of shares vested$8 $40 
Tax benefit realized upon vesting$1 $9 
Number of shares vested (1)
— 0.1 
(1) The number of shares vested in 2025 was approximately 15 thousand.