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SHARE-BASED COMPENSATION PLANS (Tables)
12 Months Ended
Dec. 31, 2022
Share-Based Payment Arrangement, Noncash Expense [Abstract]  
Share-based compensation expense
The following amounts were recognized in our consolidated statements of income for share-based compensation awards for the years ended December 31:
(in thousands)202220212020
Restricted shares and restricted stock units$16,632 $20,407 $15,066 
Performance share unit awards3,840 4,338 2,590 
Stock options2,665 4,187 3,689 
Employee stock purchase plan539 545 479 
Total share-based compensation expense$23,676 $29,477 $21,824 
Income tax benefit$(6,853)$(7,714)$(5,779)
Weighted-average assumptions used in Black-Scholes option pricing model The following weighted-average assumptions were used in the Black-Scholes option pricing model to determine the fair value of these stock option grants:
20212020
Risk-free interest rate0.7 %1.3 %
Dividend yield2.9 %3.2 %
Expected volatility42.0 %25.8 %
Weighted-average option life (in years)4.85.4
Stock options rollforward Information regarding options issued under the current and all previous plans was as follows:
Number of options
(in thousands)
Weighted-average exercise price per option
Aggregate intrinsic value
(in thousands)
Weighted-average remaining contractual term
(in years)
Outstanding, December 31, 2019
1,347 $53.92 
Granted1,030 38.13 
Exercised(12)38.80 
Forfeited or expired(231)54.87 
Outstanding, December 31, 2020
2,134 46.28 
Granted440 41.50 
Exercised(31)27.56 
Forfeited or expired(357)44.87 
Outstanding, December 31, 2021
2,186 45.81 
Forfeited or expired(454)49.78 
Outstanding, December 31, 2022
1,732 44.77 $— 6.0
Exercisable at December 31, 2020
654 $57.68 
Exercisable at December 31, 2021
1,015 51.48 
Exercisable at December 31, 2022
1,144 46.98 $— 5.2
Restricted stock units rollforward Information regarding our restricted stock units was as follows:
Number of units
(in thousands)
Weighted-average grant date fair value per unit
Weighted-average remaining vesting period
(in years)
Outstanding at December 31, 2019
664 $44.35 
Granted628 37.25 
Vested(282)45.18 
Forfeited(83)40.44 
Outstanding at December 31, 2020
927 39.68 
Granted642 42.90 
Vested(425)40.50 
Forfeited(112)39.78 
Outstanding at December 31, 2021
1,032 41.37 
Granted770 30.52 
Vested(475)42.00 
Forfeited(282)37.96 
Outstanding at December 31, 2022
1,045 34.10 2.9
Restricted shares rollforward
Information regarding unvested restricted shares was as follows:
Number of shares
(in thousands)
Weighted-average grant date fair value per share
Unvested at December 31, 2019
26 $71.61 
Vested(16)72.79 
Forfeited(2)61.43 
Unvested at December 31, 2020
71.02 
Vested(8)71.02 
Unvested at December 31, 2021
— — 
Weighted-average assumptions used in Monte Carlo simulation pricing model, performance share awards
The following weighted-average assumptions were used in the Monte Carlo simulation model in determining the fair value of market-based performance share units granted:
202220212020
Risk-free interest rate1.8 %0.3 %1.4 %
Dividend yield3.7 %4.4 %2.4 %
Expected volatility54.9 %55.6 %28.6 %
Performance share awards rollforward
Information regarding unvested performance share units was as follows:
Performance share units
(in thousands)
Weighted-average grant date fair value per unit
Weighted-average remaining contractual term
(in years)
Unvested at December 31, 2019
252 $57.64 
Granted(1)
127 36.06 
Vested(61)71.03 
Forfeited(23)62.18 
Unvested at December 31, 2020
295 45.20 
Granted(1)
208 32.46 
Forfeited(68)67.77 
Unvested at December 31, 2021
435 35.56 
Granted(1)
203 37.47 
Vested(93)44.69 
Forfeited(119)39.08 
Adjustment for performance results achieved (2)
35 44.69 
Unvested at December 31, 2022
461 34.35 1.1

(1) Reflects awards granted assuming achievement of performance goals at target.

(2) Reflects the difference between the awards earned at the end of the performance period and the target number of shares.